67results about How to "Reasonable load distribution" patented technology

The invention relates to the field of rescuing fire fighting trucks, in particular to a bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck. The bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck comprises a truck frame and road traveling bridges connected to the truck frame, and further comprises rail traveling systems, each rail traveling system comprises an upper rotation base, a lower rotation base and a swinging arm, the upper rotation bases are fixedly connected with the truck frame, the lower rotation bases are connected with the upper rotation bases in a rotatable mode, and one ends of the swinging arms are hinged to lower landing legs of the lower rotation bases. According to the bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck, wheel pairs have the rotation characteristic, compared with the conditions that in the prior art wheel pairs are pressed through a rail to carry out steering, and reverse braking is achieved through a driving system, a braking mode of the bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck is not limited by the 40-Km / h truck speed any more, the speed is one time higher than that of a conventional road-rail truck, and the emergent and rapid requirements during fire rescuing can be met.

The invention relates to the field of rescuing fire fighting trucks, in particular to a bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck. The bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck comprises a truck frame and road traveling bridges connected to the truck frame, and further comprises rail traveling systems, each rail traveling system comprises an upper rotation base, a lower rotation base and a swinging arm, the upper rotation bases are fixedly connected with the truck frame, the lower rotation bases are connected with the upper rotation bases in a rotatable mode, and one ends of the swinging arms are hinged to lower landing legs of the lower rotation bases. According to the bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck, wheel pairs have the rotation characteristic, compared with the conditions that in the prior art wheel pairs are pressed through a rail to carry out steering, and reverse braking is achieved through a driving system, a braking mode of the bidirectional-traveling road-rail dual-purpose multifunctional emergency rescuing fire fighting truck is not limited by the 40-Km / h truck speed any more, the speed is one time higher than that of a conventional road-rail truck, and the emergent and rapid requirements during fire rescuing can be met.

The invention discloses a method for recycling of soybean whey wastewater by a membrane separation technology. The method includes: sterilization pretreatment; flocculation and centrifugal separation for impurity removal; whey protein recovery by ultrafiltration membrane continuous separation; whey protein powder recovery; oligosaccharide syrup recovery by nanofiltration membrane continuous concentration; oligosaccharide recovery; and dialysis water recovery by reverse osmosis membrane continuous concentration. The method provided in the invention can avoid whey wastewater rancidity and ultrafiltration membrane pollution and plugging, and improves the product quality. Employment of the continuous separation concentration mode reduces stay of intercepted objects or protein, impurity concentrated liquors in a membrane assembly to the utmost, and back-and-forth circulation between a membrane liquid inlet tank and a membrane system no longer exists. Meanwhile, the membrane surface flow speed is controlled, so that the problems of membrane pollution and low separation efficiency are solved. An osmosis filtration membrane washing process is adopted, and water is added automatically for filter wash, so that the membrane pollution and plugging problems are solved, and the product quality is improved. The selection of high temperature resistant hydrophilic membrane materials guarantee a high water flux and help to reduce membrane pollution.

The invention belongs to the technical field of software engineering, and particularly provides a runtime virtual resource dynamic allocation method and system based on feedforward and feedback control. An MAPE self-adaptation control loop is designed to carry out optimizing control over virtual resources. The self-adaptation control loop comprises a monitoring module, an analyzing module, a planning module and an execution module, wherein the planning module is formed by a feedforward controller and a feedback controller, the feedforward controller is used for dynamically adjusting the amount of the virtual resources in advance for the main disturbance factor namely the number of visitors, and the feedback controller is used for dynamically adjusting load proportions of the processed virtual resources making response time of the virtual resources as feedback quantity for other disturbance factors; the execution module is formed by a resource management module and a load balancing module. By the adoption of the method and system, optimizing configuration of the virtual resources under the circumstance that runtime environment dynamic changes occur can be achieved, optimizing operation of an application system and the high utilization rate of the virtual resources are achieved.

The invention discloses a construction method for carrying large-scale box girder by tire type gantry crane, which comprises the following steps: 1): running empty wagons to collimating position: 2) lifting the beam; 3) running the double machine linked lifting beam longitudinally; 4) turning the wheel group by 90 degrees; 5) running the double machine linked lifting beam transversely; 6) placing the beam into the target position. The construction method of the invention for carrying large-scale whole hole prefabricated box girder in box girder fabrication yard is advanced, safe, reliable and efficient, and meets the requirement of large tonnage box girder prefabrication in the sea-crossing bridge tidal flat area in Hangzhou Bay.

The invention is a method for synthesizing the signaling events nonlocally in the seventh signaling system, the invention uses several front machines to detect several signaling chains, and the character lies in: the system is powered on, the correspondent relation content is read, the nonlocal synthesis front machine IP address list of each chain is determined; when receives the signaling, it judges the sources of the signaling, it collects the signaling to the machine and processes the signaling with different mode; when the signaling information in the event joint is collected, it accords the close standard of the vent, closes the event joint, records the relative content of the event joint, releases the event joint next use, the close standard can that the reversal signaling are received entirely. The distribution is reasonable, it reduces the processing joint, and the configuration is simple.

The invention relates to a triangle of a high device number towel machine and a design method. The triangle comprises a raising cam and a stitch cam, wherein a raising curve track is arranged on the raising cam, a stitch curve track is arranged on the stitch cam, the side surface at one end of the raising cam is arranged oppositely to the adjacent surface of the stitch cam, a triangle clearance is formed between the two end surfaces, arranged oppositely, of the raising cam and the stitch cam, the port of the raising curve track and that of the stitch curve track are in butt joint at the adjacent opposite surfaces of the raising cam and the stitch cam, the distance from the center of the raising port of the raising cam to the lower end surface of the raising cam is the raising height, the highest position of the raising curve track is the highest raising point, and the lowest position of the stitch curve track is the lowest stitch point. The triangle of the high device number towel machine is applicable to a circular knitting machine, and the newly designed triangle enables production of a high device number towel cloth to be possible.

The invention discloses a permanent-magnet cylindrical cage type high-gradient magnetic separator with high processing capacity. A separating cylinder (2) is a cylindrical cage which is a rotary body and is filled with magnetic matrices (4); two ends of the cylindrical cage are supported on a hollow support shaft (3) through bearings; a magnetic system is a permanent-magnet lattice uniform magnetic field system formed by an upper magnetic system and a lower magnetic system, the upper magnetic system is arranged in the cavity of the cylindrical cage and suspended on the hollow support shaft (3), the lower magnetic system is installed outside the cylindrical cage, the hollow support shaft (3) is a non-rotary body, one end of the hollow support shaft (3) is used as an axes feeding port (12),the middle of the hollow support shaft (3) is provided with a baffle plate, and one side of the baffle plate of the hollow support shaft is provided with a separating and feeding port close to the feeding port (12), the other side of the baffle plate of the hollow support shaft is provided with a concentrate feeding port (14), and the other end of the hollow support shaft (3) is used as a concentrate discharging port (13). The permanent-magnet cylindrical cage type high-gradient magnetic separator has the advantages of easiness for maximization, convenience for design and production, low energy consumption, reasonable magnetic distribution, uniform background magnetic field working region as well as high processing capacity and stable separation indexes under limited tonnage and volume.

The invention relates to a temperature control method for a pulse-type slab heating furnace. A pulse-type slab heating furnace and a heating furnace burner groups thereof are included. The heating furnace burner groups are arranged in pairs on two sides; the burner group on each side is divided into an upper group and a lower group. The method is as below: selecting representative burners in a heat supply segment of the heating furnace burner group; setting the temperature of the representative burners; directly using the temperature set in the heat supply segment of the heating furnace as the set temperature of representative burners; then setting the temperature of other burners in the heat supply segment of the heating furnace burner group; and finally detecting the actual temperature of other burners in the heat supply segment of the heating furnace burner group. The temperature control method of the pulse-type slab heating furnace can improve the temperature control of the head and tail of the temperature control middle segment of the pulse-type slab heating furnace burner group to realize stability and controllability. The method can reduce uneven atmosphere temperature distribution in the furnace, rationally allocate the load of burners, greatly save the energy consumption and increase productivity.

The invention relates to a combined multi-arch type steel-structure dam, which comprises a reinforced concrete cushion cap and a pre-embedded fixed part at the dam bottom and reinforced concrete structured side piers and the pre-embedded fixed part on the two banks, wherein the steel-structural dam main body comprises a box type arch-shaped supporting main body and n small-span arch-shaped supporting panels which are fixed on a convex water-ward face of the arch-shaped supporting main body; and the arch-shaped supporting main body is an assembly which divided into n small arch-shaped supports which are formed by fixing box type small arch-shaped units A with rectangular sections and box type small arc-shaped units B with triangular sections. The combined multi-arch type steel-structure dam has the advantages that: the steel-structure dam is mainly stabilized under the counter-force action of the arch ends on the two banks, a plurality of small-span arch rings which are continuously arranged on the water-ward face ensure that the load on the dam body is uniformly transmitted to the arch-shaped supporting main body which is arranged behind the panel and has a box girder structure and then transmitted to the two banks and the foundation, so the load distribution is more rational; the dam body is light and tough, highly elastic and high in shock resistance; and the materials for building the dam are green and environmentally-friendly and can be recycled, the industrial manufacturing and installation are easily realized and the project process can be accelerated.

The invention discloses a flexible blocking net, relates to a protective structure, and provides a flexible blocking net capable of optimizing load distribution and reducing local load concentrating. The flexible blocking net comprises two end supporting columns, a middle supporting column located between the two end supporting columns, a top supporting rope and a metal flexible net body, wherein the top supporting rope and the metal flexible net body are transversely unfolded to be arranged between the two end supporting columns. The top supporting rope is supported by the end supporting columns and the middle supporting column, and a supporting joint is arranged at the portion where the top supporting rope and the middle supporting column intersect with each other. The metal flexible net body comprises a plurality of net holes formed in rows, the row of net holes located at the edge of the metal flexible net body are edge net holes, and the several rows of net holes close to the edge net holes are edge-adjacent net holes. The edge net holes are connected with the top supporting rope in a slideable mode. The edge-adjacent net holes close to the supporting joint are connected with the top supporting rope in a slideable mode through the additional connecting structure. The flexible blocking net can be used for blocking movement objects and particularly can be used for blocking tumbling stone, sliding rock and earth masses, mud-rock flow, snow slide and blasting flying rock.

The invention discloses a power distribution network optimization method considering wind-solar output and price demand response. The method comprises the following steps: obtaining a daily electricity price curve by adopting a hybrid pricing method; performing stratified sampling and correlation control on the wind-solar output to obtain a wind-solar output condition; establishing a user demandresponse model according to the daily electricity price curve and the wind-solar output condition; establishing a power distribution network optimization model according to the user demand response;and solving the power distribution network optimization model by adopting a genetic algorithm, and finally optimizing the power distribution network through the model.

The invention discloses a multifunctional tree body supporting structure, in particular to the multifunctional tree body supporting structure applied in the technical field of landscaping construction. The multifunctional tree body supporting structure comprises a base constraint framework, a supporting rod piece and an upper constraint, the upper constraint is located above the base constraint frame and is of a hollow framework type structure, the supporting rod piece is obliquely arranged between the base constraint frame and the upper constraint, the upper end of the supporting rod piece isconnected with the upper constraint, and the lower end of the supporting rod piece is detachably connected with the base constraint frame. By means of the multifunctional tree body supporting structure, it is ensured that the whole supporting structure is stable and tree bodies are supported safely at the same time, and the passage safety of pedestrians is effectively improved; through a simple lighting device, it is ensured that the pedestrians are easy to recognize, and meanwhile, the ornamental value of the road landscape is improved.

The invention relates to an integrated single-cylinder engine base structure which comprises a lower crankcase (1), a left balance chamber (2), a right balance chamber (3) and an oil pan (4), wherein the left balance chamber (2) and the right balance chamber (3) are symmetrically arranged at left and right sides of the lower crankcase (1); and the oil pan (4) is arranged at the lower parts of the left balance chamber (2) and the right balance chamber (3). According to the invention, the integrated single-cylinder engine base structure integrates a plurality of functions into a whole body and has high integration degree; three chambers are transversely arranged and three clapboards are longitudinally arranged, so that the longitudinal and transverse size proportion is proper, the integral rigidity is high, and the stability is high; a three-gear crankshaft bearing base is divided into a load-carrying bearing base and a thrust bearing base; the function division is clear; the load distribution is reasonable; the high working rigidity of a crankshaft and the working intensity of a bearing bush are ensured; and finally, the working intensity of the whole machine is improved.

The invention discloses a high-temperature smoke heat exchanger for a urea pyrolytic process. The high-temperature smoke heat exchanger adopts a tube-shell heat exchanging structure and comprises a shell, a heat exchanging tube bundle which is arranged in the shell and a shell-side inlet-outlet which is arranged on the shell, and the high-temperature smoke heat exchanger is characterized in that the heat exchanging tube bundle is arranged in the vertical manner, the upper end and the lower end of the shell are communicated with the heat exchanging tube bundle and provided with an upper tube header and a lower tube header, an upper tube plate is provided with a heat insulation structure, and the upper end of each heat exchanging tube penetrates the heat insulation structure to be communicated with the upper tube header. The high-temperature heat exchanger adopts the vertical-type structure, and the upper tube plate is provided with the heat insulation layer, so that the impact of the high temperature on the upper tube plate can be reduced, and the high-temperature smoke heat exchanger can be used for the heat exchanging of the high-temperature smoke.

The invention discloses a method for recycling of soybean whey wastewater by a membrane separation technology. The method includes: sterilization pretreatment; flocculation and centrifugal separation for impurity removal; whey protein recovery by ultrafiltration membrane continuous separation; whey protein powder recovery; oligosaccharide syrup recovery by nanofiltration membrane continuous concentration; oligosaccharide recovery; and dialysis water recovery by reverse osmosis membrane continuous concentration. The method provided in the invention can avoid whey wastewater rancidity and ultrafiltration membrane pollution and plugging, and improves the product quality. Employment of the continuous separation concentration mode reduces stay of intercepted objects or protein, impurity concentrated liquors in a membrane assembly to the utmost, and back-and-forth circulation between a membrane liquid inlet tank and a membrane system no longer exists. Meanwhile, the membrane surface flow speed is controlled, so that the problems of membrane pollution and low separation efficiency are solved. An osmosis filtration membrane washing process is adopted, and water is added automatically for filter wash, so that the membrane pollution and plugging problems are solved, and the product quality is improved. The selection of high temperature resistant hydrophilic membrane materials guarantee a high water flux and help to reduce membrane pollution.

The invention provides a three-fork-shaft-type noncircular bevel gear limited slip differential which is simple in structure, low in cost and high in strength. The three-fork-shaft-type noncircular bevel gear limited slip differential is provided with a differential shell, a left noncircular bevel half shaft gear, a right noncircular bevel half shaft gear and three noncircular bevel planetary gears. The left noncircular bevel half shaft gear is installed in a left half shell of the differential shell. The right noncircular bevel half shaft gear is installed in a right half shell of the differential shell. The three noncircular bevel planetary gears are installed in the differential shell through a three-fork shaft. The three-fork shaft is in a Y shape with three branch shafts. The three branch shafts are evenly distributed at equal angles. The three noncircular bevel planetary gears are meshed with the left noncircular bevel half shaft gear and the right noncircular bevel half shaft gear. The number of teeth of the noncircular bevel planetary gears, the number of teeth of the left noncircular bevel half shaft gear and the number of teeth of the right noncircular bevel half shaft gear are the same.

The invention discloses a meshed connection smart distribution network system comprising a plurality of transformation regions, a plurality of connection switches and a background expert system. The plurality of transformation regions are connected through the connection switches to form a mesh shape. All the transformation regions have access to a power grid and are in wireless communication connection with the background expert system. The meshed connection smart distribution network system reasonably distributes loads, enhances a system power supply capability, reduces loss, can control a voltage regulator and a three-phase unbalanced control device in a centralized way, eliminates harmonics, improves a power factor, and achieves a purpose of improving power supply quality.

The invention discloses a novel precast concrete sandwich heat-preservation wall connecting part system and a design method thereof. The novel precast concrete sandwich heat-preservation wall connecting part system comprises a force-bearing connecting part system and a limiting connecting part system, wherein the force-bearing connecting part system comprises a plurality of force-bearing connecting parts which meet target shear stiffness and shear bearing capacity and are used for bearing the shear load; the limiting connecting part system comprises a plurality of limiting connecting parts which meet target axial force-bearing performance and are used for bearing the axial load, and the design load of each force-bearing connecting part and each limiting connecting part of the connecting part system, the number of the connecting parts of the connecting part system, and the positions of the connecting parts of the connecting part system are designed according to design parameters, required stiffness and bearing capacity of wallboards. According to the novel precast concrete sandwich heat-preservation wall connecting part system, deformation of sandwich heat-preservation wallboards in a normal using limit state can be controlled, and safety in the limit state of the bearing capacity is guaranteed.

The invention discloses a cold extrusion forming process for a nozzle needle valve body. The process specifically includes the steps of cold finishing, forward extrusion of a rod part, extrusion of amiddle end diameter part, extrusion of a tip end part and formation of the tip end part. By means of the process, the metal streamline is continuous and is not cut through machining, the product performance is improved, the production efficiency is improved, and the utilization rate of materials is increased.

The invention discloses a construction method for dismantling padding on an arch of a two-way curved arch bridge. The construction method for dismantling the padding on the arch of the two-way curvedarch bridge comprises the following steps that areas, located between every two adjacent bridge piers, of the bridge surfaces are divided into first construction areas, longitudinal transportation areas extending in the longitudinal bridge direction are marked out at the centers of the bridge surfaces, each first construction area is divided into two second construction areas by the longitudinal transportation areas, and each second construction area is divided into a plurality of third construction areas in the horizontal bridge direction, wherein the third construction areas extend in the longitudinal bridge direction. The padding of the third construction areas is dismantling symmetrically and shipped out through the longitudinal transportation areas; and the padding of the longitudinaltransportation areas is dismantling symmetrically and shipped out. The construction method for dismantling the padding on the arch of the two-way curved arch bridge overcomes the defects of high safety risk and low work efficiency existing in traditional construction.

The invention discloses a permanent-magnet cylindrical cage type high-gradient magnetic separator with high processing capacity. A separating cylinder (2) is a cylindrical cage which is a rotary body and is filled with magnetic matrices (4); two ends of the cylindrical cage are supported on a hollow support shaft (3) through bearings; a magnetic system is a permanent-magnet lattice uniform magnetic field system formed by an upper magnetic system and a lower magnetic system, the upper magnetic system is arranged in the cavity of the cylindrical cage and suspended on the hollow support shaft (3), the lower magnetic system is installed outside the cylindrical cage, the hollow support shaft (3) is a non-rotary body, one end of the hollow support shaft (3) is used as an axes feeding port (12),the middle of the hollow support shaft (3) is provided with a baffle plate, and one side of the baffle plate of the hollow support shaft is provided with a separating and feeding port close to the feeding port (12), the other side of the baffle plate of the hollow support shaft is provided with a concentrate feeding port (14), and the other end of the hollow support shaft (3) is used as a concentrate discharging port (13). The permanent-magnet cylindrical cage type high-gradient magnetic separator has the advantages of easiness for maximization, convenience for design and production, low energy consumption, reasonable magnetic distribution, uniform background magnetic field working region as well as high processing capacity and stable separation indexes under limited tonnage and volume.

The invention discloses a swinging arm translating roof system of a dregs truck, including carriages, Top cover and top cover lifting device, A lifting device of that top cover is of a four-link structure, comprises two driven arms and two driving arms, Two driven arms and two driving arms are symmetrically inclined on the left and right sides of the vehicle compartment, the upper ends of each driven arm and the driven arm are respectively connected with the top cover through the first pin shaft, the lower ends of the two driving arms are respectively connected with the two ends of the drivingarm through shaft, and the lower ends of the two driven arms are respectively connected with the two ends of the driven arm through shaft; The driving arm through shaft and the driven arm through shaft are fixedly installed at the bottom of the car; A swivel arm and an oil cylinder are respectively arrange on two sides of that car bottom, each oil cylinder is arrange on a corresponding oil cylinder seat at the car bottom, one end of each swivel arm is welded with a driving arm on the same side, and the other end of each swivel arm is connected with a push rod of the oil cylinder on the same side through a second pin shaft. The invention ensures the sealing of the carriage after the dregs truck is loaded with goods, and avoids the leakage of materials and dust in the transportation processof the truck.

The invention discloses an air conditioning duct system capable of evenly regulating a temperature field of a building atrium. Firstly, rooms and the atrium communicate with the outside, and the roomsand the atrium communicate mutually to form an air flowing channel; and secondly, the rooms or the atrium is provided with a fresh air device forming the air pressure, so that the air pressure difference is formed between the rooms and the atrium. The air conditioning duct system capable of evenly regulating the temperature field of the building atrium is provided for solving the problem that thelarge vertical temperature gradient of the atrium space cannot be solved by an existing air conditioning system. The temperature field of the atrium space can tend to uniform in the vertical direction through the air conditioning duct system.

The invention provides an anti-cable-stayed-tearing rope which comprises a rope core, a rope skin and an anti-cable-stayed part located between the rope core and the rope skin. The anti-cable-stayed part is divided into a plurality of segments and is arranged at equal spacing on the rope core. The anti-cable-stayed part arranged in segments is added to the position between the rope core and the rope skin, so that more reasonable distribution load of the rope under the condition of torsion is realized by transferring the oblique tension part, which all originally act on the rope body, to the anti-cable-stayed part, load sharing of the rope skin fiber can be obviously reduced, the safety of the rope is significantly improved in use, the service life of the rope is effectively prolonged, and great practical value is achieved.

The invention relates to the technical field of the shaft lifting mechanism of automobiles, in particular to a shaft lifting device for leaf springs suspension. The shaft lifting mechanism comprises a frame, a shaft and leaf suspension mechanisms fixedly connected with two ends of the shaft, respectively. The shaft lifting mechanisms are fixedly connected with the upper part of the shaft and the middle of the frame. The shaft lifting mechanism includes a fixed beam, the two ends of which are fixedly connected with the frame, respectively; an airbag which is arranged on the fixed beam and which is chargeable and dischargeable; and a movable beam. The airbag is arranged between the fixed beam and the movable beam, the two ends of the movable beam are connected with lifting components, respectively, and the shaft is arranged on the lifting components. The shaft is lifted up and down by the charge and discharge of the airbag of the shaft lifting mechanism, and the lift-up and lift-down of the shaft is achieved by the device. The loads are distributed rationally, the oil consumption is reduced, and the wear of tires is reduced. Furthermore, the device has the advantages of simple structure, firmness, high strength, long service life, and low manufacture cost.

The invention discloses an assembly type rigid supporting protection foundation structure for buried pipelines, and belongs to the technical field of engineering foundations. The assembly type rigid supporting protection foundation structure comprises a foundation, and is characterized by comprising a plurality of supporting units, each supporting unit comprises a precast pile and a pipeline borne by the precast pile, pipeline ports of the two supporting units are in butt joint, each supporting unit further comprises at least one of a prefabricated arch ring and a prefabricated foundation beam, each prefabricated arch ring is supported by the foundation and covers the corresponding pipeline in a buckling mode, a gap is formed between the inner wall of each prefabricated arch ring and the outer wall of the corresponding pipeline, and each prefabricated foundation beam is supported by the precast pile and used for bearing the corresponding pipeline. According to the assembly type rigid supporting protection foundation structure for the buried pipelines, the stress condition of the pipelines can be improved through the foundation structure, the pipeline protection effect is good, durability is high, the construction cost is low, and the construction efficiency is high.

The invention discloses a combined aluminum alloy double-wall drill pipe unit composed of an inner pipe, an outer pipe, an upper connector of the outer pipe, a lower connector of the outer pipe, an upper connector of the inner pipe, a lower connector of the inner pipe and seal rings. Two ends of the outer pipe are connected with the upper connector of the upper pipe and the lower connector of the outer pipe through clamping slots, respectively. The seal rings are arranged on matched cylindrical surfaces between the outer pipe and the upper connector of the outer pipe as well as between the outer pipe and the lower connector of the outer pipe. The inner pipe is arranged in the outer pipe. Two ends of the inner pipe are connected with the upper connector and the lower connector of the inner pipe through threads, respectively. As the combined aluminum alloy double-wall drill pipe units coupled, two adjacent outer pipes are in threaded connection through the upper connectors and the lower connectors of the outer pipes, and the inner pipes are in inserting connection through the upper connectors and the inner connectors of the inner pipes. The outer pipe made of aluminum alloy is 1 / 3 of steel in density, leading to light weight and carrying convenience. The combined aluminum alloy double-wall drill pipe unit is light, convenient to carry, simple in structure, easy to detach, reasonable in load distribution, accurate in the centering position between the inner pipe and the outer pipe, good in stress working condition and the like.

A load distribution algorithm of a substation belongs to that technical field of electric power distribution. A power supply area divide unit is included, a load prediction unit is connected to the power supply area division unit through data, a power supply proportion estimation unit is connected to the data of the power supply proportion estimation unit, an association matrix unit is connected to the data of the association matrix unit, and a load distribution calculation unit is connected to the data of the association matrix unit. The methd specifically comprising the following steps of: 1) counting the power supply area belonging to each substation; 2) forecasting the load from each power supply area to the planning level year; 3) estimating the proportion of power supply in the planning level year; 4) forming an association matrix according to the power supply proportion; 5) calculating the load distribution, which solves the problem of blindness, poor adaptability and low efficiency of the existing substation load distribution, and directly forms the load distribution coefficient matrix of the substation through the system network equation, thereby effectively establishing an analytical model, and greatly improve the accuracy, adaptability and efficiency of the load distribution process.

The invention provides a fuselage lateral and heading load combined application device. The device comprises a loading lever device which is connected with a surface of a fuselage skin and used for applying a load to the fuselage skin, a combined loading lever, a first execution actuator and a second execution actuator, wherein two ends of the combined loading lever are each connected with at least one loading lever device and used for balancing loads applied to the loading lever devices, the first execution actuator and the second execution actuator are approximately symmetrically connected with the combined loading lever, and the first execution actuator and the second execution actuator are horizontally arranged in the same horizontal plane. Compared with a load applying device in the prior art, the fuselage lateral and heading load combined applying device provided by the invention can realize bidirectional loading, realizes application of heading and lateral loads through one setof lever system, reduces the adhesion amount of a structure surface load transfer medium, and is convenient for structure damage detection.