81results about How to "Reduce lateral stiffness" patented technology

Embodiments of the present invention are directed to apparatus and methods of attenuating vibration, particularly for modern stepper machines and other types of vibration sensitive equipment. The attenuation system exhibits good vibration attenuation in the axial or support direction, and exhibits low or substantially zero lateral stiffness to prevent transmission of any vibrations between any of various portions of the machine. In one embodiment, an apparatus for attenuating transmission of lateral vibration between a first mass and a second mass comprises a vibration attenuation device including at least one bellows oriented along a support axis. The at least one bellows is connected between the first mass and the second mass and has an interior volume pressurized with a fluid to an internal fluid pressure which is greater than a zero-stiffness pressure such that the vibration attenuation device exhibits a negative lateral stiffness. A positive stiffness device is coupled between the first mass and the second mass. The positive stiffness device has a positive lateral stiffness which may be substantially equal to or greater than the negative lateral stiffness in magnitude.

The invention discloses a rail engineering truck steering frame belonging to the field of rail vehicle steering frames. Aiming at the defects of large turning radius and incapability of meeting the low-speed operation working conditions of the traditional rail engineering truck, the steering frame comprises an H-type frame, ATP (Array Transform Processor) induction coil devices arranged at end parts of two lateral beams of the frame, rim lubricating devices arranged at two ends of a locomotive, a primary suspension device, a secondary suspension device, a third rail current collector arranged at the middles of the lateral beams of the frame, a basic brake device transversely arranged on the lateral beams of the frame, and a traction device connected with the frame by adopting a full-suspension manner; and a gear box is hung on a cross beam of the frame and is internally provided with two stages of gear transmissions with total transmission ratio of (7.63-10.03):1. The rail engineering truck steering frame has the highest operation speed of 90km / h, the continuous speed of about 18km / h and the lowest operation speed of below 5km / h and has the advantages of small turning radius, high low limit, simpler structure, convenience for maintenance and high reliability.

The air spring vibrating isolation base with the magnetic suspension unit includes the: the basal body, a group of air spring, the air feed system, the high controlling system, many magnetic suspension units, the low stiffness righting device. The input of the air feed system and the high controlling system are connected with each other. The output of the high controlling system is connected with every air spring; the magnetic suspension unit is connected to the air feed system. The magnetic suspension and the air spring are connected under the basal body in series to support it; the side of the basal body is installed with the low rigidity righting device. The invention can be proper for the super high air spring isolation base in the condition of not changing the bearing ability of the vibration separation system.

A collapsible door support structure includes a pre-defined bend or local stiffening feature. The collapsible structure is either be incorporated into the door handle or is incorporated into a bracket that is either attached to the door handle or to the door pull cup. If in the form of a bracket, at least one end of the bracket is attached to the door inner sheet metal. The other end of the bracket may be attached to the door handle or to the door trim panel. If used as a door pull cup support bracket a portion of the bracket is fixed to the bracket. In the event of an impact upon the vehicle door, the door inner sheet metal panel is pushed horizontally in a direction that is vehicle inward. The collapsible feature of the structure formed between the door inner sheet metal and the door trim panel causes the horizontal movement to be translated into vertical or upward movement and transmitting the energy away from the vehicle occupant, thus avoiding the door trim panel from being pushed inward into the passenger area of the vehicle.

A pull cup in a vehicle door is fitted to a door trim panel substrate and is connected to the door inner sheet metal panel of the vehicle door by way of a bracket or by one of a pair of inner and outer support brackets. The pull cup is provided with a bending initiator feature which is positioned a trigger area formed in the door trim panel substrate. In the event that a horizontal force is applied to the vehicle door, the vehicle inward movement of the door inner sheet metal panel causes the pull cup to be pushed upward. The bending initiator feature pushes on the trigger area causing the door trim panel substrate to buckle, thus substantially preventing vehicle inward movement of the door trim panel substrate during the impact event. The bending initiator feature also reduces the lateral stiffness of the door trim sub-system.

The invention discloses a suspension type drive device for an electric frame, which comprises a traction electric machine, a gear box and a six-link mechanism that are suspended on a truck frame, wherein the traction electric machine is directly connected with a pinion shaft of a pinion in the gear box through an elastic coupling, the pinion is externally meshed with a bull wheel positioned in the gear box, a bull wheel core of the bull wheel is connected with a hollow shaft of the six-link mechanism through an end tooth transmission disk, and the six-link mechanism is connected with a wheel through six links. The traction eclectic machine, the gear box, the hollow shaft of the six-link mechanism, the traction eclectic machine, the elastic coupling and an electric machine suspension beam form an integral drive unit, one side of the drive unit is suspended on the beam of the truck frame through a suspension rod of the gear box in a swinging manner, and the other side is connected with the beam of the trunk frame through an electric machine suspension seat. The invention can solve the problem of transverse unstability of an express locomotive, and can greatly prolong the service life of a transmission gear and an electric machine bearing of a high-power locomotive.

The invention discloses a concrete filled steel tube row column shear wall with a structural steel support and a manufacturing method thereof. The shear wall comprises prefabricated concrete filled steel tubular columns arranged at certain intervals, structural steel supporting components, sleeve connecting components for connecting structural steel and concrete filled steel tubes, concrete poured into a wall space in a filling mode, and steel bar nets which are used for preventing early cracking of the concrete and arranged on two sides of a wall body in advance. The shear wall gives full play to the good axial compressive performance of the concrete filled steel tubular columns. The rigidity of the wall body is increased due to addition of the structural steel supporting components. A rubber pad layer is arranged in each sleeve connecting component, so that partial damage at the joints of the concrete filled steel tubular columns and the supporting components is reduced to a certain extent. Bulging of steel tubes is restrained due to the hooping function of sleeves to the concrete filled steel tubes, and the three layers of defenses including the concrete, the structural steel support and the concrete filled steel tubes are formed. The combined shear wall has high bearing capacity and a good anti-seismic property, most of the components are prefabricated components and are convenient to splice after being conveyed to a construction site, and work time is saved.

A tension-based non-pneumatic structurally supported wheel with reduced lateral stiffness having a compliant tread band and a plurality of web spokes for bearing the load in tension extending transversely across and inward from a compliant tread band for attachment to a hub. The web spokes have an increasing draft angle and decreasing width as they extend from the compliant tread band to the hub reducing the lateral stiffness of the wheel thereby reducing steering force feedback to the steering mechanism.

The invention relates to a novel high-speed motor train unit power bogie. The novel high-speed motor train unit power bogie is characterized in that crossbeams and side beams respectively adopt a box-type structure formed by welding steel plates, a main body consists of two side beams and a crossbeam, the side beams and the crossbeam are respectively formed by welding steel plates, the side beams and the crossbeam are respectively provided with various functional seat, the crossbeam and the side beams are connected in a plugging manner, an upper cover plate and a lower cover plate of each side beam respectively extend inwards, a side vertical plate of the crossbeam is directly inserted into an extension position of the upper cover plate and the lower cover plate of the side beam to be directly connected with the inner vertical plate of the side beam, the lower cover plates of the crossbeam and each side beam are directly connected in a welding manner, and the upper cover plates of the crossbeam and each side beam are elastically connected with each other; a motor is suspended in a supporting manner on four points, and the motor is elastically connected with a bogie framework; an oil pressure damper is arranged between the motor and the framework, and a transverse stop bar is arranged between the motor and the framework. The bogie is simple in structure; the motor suspension frame is not needed, so that the structure is greatly simplified, the application, maintenance and repairing are facilitated, modularized and uniform design of parts can be realized, and the product applicability can be improved.

The invention discloses an air spring vibration isolation base with gas lubricating unit, which is characterized by the following: comprising base (5), a group of air spring (4), air feed system (1), height controlled system (2), a plurality of gas lubricating unit (3)and erection device with low rigidity; connecting the air feed system (1)to the inputting end of the height controlled system (2); connecting the outputting end of the height controlled system (2)to each air spring (4)separately; connecting the gas lubricating unit (3)to the air feed system (1)directly; cascading the gas lubricating unit (3)and the air spring (4); assembling under the base (5)to support the base; layouting erection device (6)with low hardness at the lateral of the base (5). This invention is fit for super air spring vibration isolation base.

The invention discloses a bogie for a passenger car. The bogie comprises a framework system, a wheel set axle box system, a primary suspension positioning system, a secondary suspension system, a central traction device and a basic braking system, wherein the primary suspension positioning system adopts rocker arm type positioning; a positioning rocker arm is fixedly connected with the wheel set axle box system through a clamping band; one end of a vertical shock absorber of the positioning rocker arm is connected with the positioning rocker arm; the other end of the vertical shock absorber is connected with a shock absorber support of the framework system; and split type elastic nodes are installed in node holes of the positioning rocker arm and connected with a node support installed in the framework system through tapered pins and connection bolts. According to the bogie for the passenger car, optimal configuration of the bogie structure and the suspension positioning damping system is carried out, so that the bogie is stable in performance, simple and reliable in structure, light in weight and low in cost, can meet the requirements for high speed and heavy load, and can also guarantee excellent stability, safety and comfort of the bogie during high-speed operation.

The invention relates to a main girder slide die carrier system and a construction method of cable-stayed bridges, with steps as follows: when the construction 0# segment is finished, a bailey truss sliding die carrier is extended, which is divided into three groups that respectively move forward to next row of supporting piers; a construction segment bottom die is dragged to place; a fore-fulcrum elevation of the die carrier is adjusted; suspenders are stretched ahead; segmental steel bars and prestressing tendons are bound; segmental concrete is poured; segmental pre-stressing tendons are stretched; the die carrier is down adjusted; the bottom die is moved forward to next segmental place; and the steps are repeated. The invention has the advantages that by using the stress system of front supporting and back cable staying, one part of load has transferred to a cast girder segment, and the other part is borne by temporary piers, stressing is definite, calculation is easy, working condition is unified, and main girder linear adjustment control is convenient. The invention is applicable not only to concrete connecting girders and T-frames, but also to cable-stayed bridges with various cross-sectional shapes, achieves single cable plane, small transverse stiffness, wide flange plate cross section main girder, and whole section global casting, saves labor and materials, enjoys a short construction period and standardized construction, and is stable, safe and reliable.

A first aspect of the present invention relates to a diaphragm (2) for sealing an access opening (5) of a container body (6), the diaphragm being semi-rigid and formed with a shaped cavity (10). The present invention is particularly (but not exclusively) suitable for use with metal cans for packaging foodstuffs. A second aspect of the present invention relates to a reinforcing support (14) for locating over the diaphragm when used to seal an access opening of a container body. A third aspect of the present invention relates to a spoon (26) suitable for use with a container comprising the diaphragm.

The invention relates to a force and pressure measurement model of a bridge. The model comprises a rectangular suspension frame, a suspension frame cover outside the suspension frame and a force measurement mechanism for measuring force of the suspension frame, wherein the force measurement mechanism comprises an axial force sensor, a plurality of vertical force sensors and a plurality of lateral force sensors, the axial force sensor is arranged at the end part of the suspension frame and located in the same straight line with a center line of the wide side of the suspension frame, the vertical force sensors are vertically arranged at the bottom of the suspension frame, and the lateral force sensors are arranged on one or two side surfaces of the suspension frame and parallel to the wide side direction of the suspension frame. According to the force and pressure measurement model of the bridge, the force sensors are distributed in multiple directions, so that force in all directions can be measured; disturbance elimination components are arranged between each force sensor and the suspension frame, so that the force in all directions can be transmitted to corresponding force sensors as much as possible, the accuracy of measured force is greatly improved, and aerodynamic force of the bridge model is obtained accurately; and rectangular end blocks arranged at two ends of the suspension frame are taken as compensation sections, accordingly, the end effect can be avoided, and a flow field of a suspension section can be close to a two-dimensional flow as much as possible.

The invention discloses an elastic supporting and vibration isolating device of a ship pipeline system. The device comprises three functional components including a pipe clamp vulcanization component,two low-frequency vibration isolating components and a limiting component; the pipe clamp vulcanization component comprises an upper hoop-type pipe clamp and a lower hoop-type pipe clamp; an upper lining is arranged on the inner wall of the upper pipe clamp; a lower lining is arranged on the inner wall of the lower pipe clamp; the two low-frequency vibration isolating components are fixedly mounted on two sides of the lower pipe clamp in a lifting manner; and each low-frequency vibration isolating component comprises a middle connecting arc plate, a low-frequency vibration absorbing rubber block, a vibration absorber base and a protecting cover. The device adopts the double-layer vibration isolating structure, the low-frequency vibration isolating components adopt 30-60-degree cut vibration absorbing rubber, the rigidity in the vertical direction, the transvers direction and the longitudinal direction is reduced, the three-dimensional equal rigidity is realized, and the vibration isolating effect is good. The whole vibration isolating device is compact in structure and is convenient and easy to mount and maintain. The device is particularly applicable to application occasions of ships having relatively high noise and environmental adaptation requirements.

The present invention relates to railway goods transporter, and is especially one bogie for railway goods train. The bogie for railway goods train includes one wheel pair, one framework, one swing bolster, one suspension device and one foundation brake rigging. The foundation brake rigging includes brake disk mounted on the shaft of the wheel pair, braking cylinder and clamp, and has brake block and clamp assembly installed on the framework. The present invention features the two stage suspension including the first stage suspension of composite metal fluid rubber spring and locating axle box and in the position between the framework and the wheel pair axle box, and the second stage suspension of rubber-metal pad between the framework and the swing bolster. There are also one longitudinal drawing unit, one transverse damping device and one automatic empty weight vehicle regulator. The bogie has small axle weight, high speed, good braking performance, and can raise the vehicle stability and safety.

The invention belongs to the technical field of constructional engineering, and in particular relates to a four-side connected circular hole combined steel plate shear wall, which consists of a filled-in steel plate, precast concrete slabs, frame structural members and connecting plates. The precast concrete slabs are positioned on two sides of the filled-in steel plate, and the upper end and the lower end of the filled-in steel plate are connected with the framework structural members through the connecting plates; the middle area of the filled-in steel plate is evenly distributed with circular holes, the precast concrete slabs are evenly distributed with bolt holes corresponding to the circular holes, and bolts sequentially pass through the bolt holes and the circular holes so as to make the filled-in steel plate connected with the precast concrete slabs arranged on the two sides of the filled-in steel plate; and the occupied area of the circular holes is 15 to 20 percent of the total area of the filled-in steel plate. In the invention, the four-side connected wall body is supported outside the surface by construction measures, thereby ensuring that the outside of a plane of the wall body is stable and the filled-in steel plate can effectively consume energy in violent shake. The shear wall can be widely applied in a multi-layer steel structure and a steel-concrete combined structure.

The invention relates to a friction-varying hanging-type shock-absorption bogie. The friction-varying hanging-type shock-absorption bogie comprises wheel sets, side frames, bearing components, hanging-type friction-varying shock absorbers, a swing bolster and a brake system, wherein each hanging-type friction-varying shock absorber comprises a shock absorber shell, springs, a threaded lifting rod, a support plate and nuts; the hanging-type friction-varying shock absorbers are suspended on the side frames by the threaded lifting rods and the nuts; the threaded lifting rods penetrate through the shock absorber shells and the support plates in sequence; two ends of each threaded lifting rod are matched with the nuts; the springs are installed between the shock absorber shells and the support plates. According to the invention, not only can the shock-absorption friction matched with an empty vehicle and low dead weight capacity be provided, but also the shock-absorption friction matched with other dead weight capacity also can be provided; the hanging-type friction-varying shock absorbers are installed with pre-compression amount, and as the increase of dead weight capacity, the spring compression amount also increases; a hanging-type structure is adopted by the bogie, and the compression amount and the horizontal rigidity for bearing steel springs decrease, so that the horizontal force between wheel rails is lowered, the wheel rim abrasion is alleviated, and the bogie can smoothly pass by a curve line.

The invention provides a conical spring stiffness adjusting method. A conical spring comprises an outer sleeve, a rubber body and a mandrel. The rubber body is vulcanized between the outer sleeve and the mandrel. A flange is arranged outside the lower end of the mandrel. A partition plate is arranged in the rubber body, when the lower end of the inner rubber body between the mandrel and the partition plate moves downwards, the inner rubber body bears dual restraints of the flange and the partition plate, and therefore the vertical stiffness of the conical spring is improved. The vertically distributed partition plate is arranged in the rubber body, so that when the lower end of the inner rubber body between the mandrel and the partition plate moves downwards, an outward convex arc section and an outward convex linear section are gradually attached to the upper surface of the flange and are limited in a space defined by the outer side of the mandrel, the upper surface of the flange and the inner side of the partition plate, so that the vertical stiffness of the conical spring can be greatly improved. The vertically distributed three-section type partition plate is arranged in the rubber body, so that the nonlinearity of the vertical stiffness of the conical spring is improved, and the transverse stiffness of the conical spring is improved.

The invention discloses a foam steel board shear wall structure. The foam steel board shear wall structure comprises steel beams and steel columns, wherein the steel beams and the steel columns are connected through beam column joints; foam steel boards are installed between the adjacent steel beams and the adjacent steel columns to form a shear wall steel board; the two sides of the foam steel boards are connected with the steel beams through horizontal angle iron; the two sides of the foam steel boards are connected with the steel columns through vertical angle iron; the foam steel boards and the horizontal angle steel are fastened and connected through transversely distributed vertical bolts; the horizontal angle steel and the steel beams are connected through transversely distributed parallel bolts; the foam steel boards and the vertical angle steel are connected through vertically distributed perpendicular bolts; the vertical angle steel and the steel columns are connected through vertically distributed parallel bolts. The foam steel board shear wall structure can overcome the defects of an ordinary steel board shear wall, can be prevented from buckling failure, and has the advantages of being large in lateral rigidity, good in anti-seismic property, high in ductility, full in energy consumption hysteresis hoop and the like.

The invention discloses a low-coupling axial and radial combined loading device for a rolling bearing and a loading method, and relates to the loading field of bearing tests. The low-coupling axial and radial combined loading device for the rolling bearing and the loading method aim to solve a problem in the prior art that the transverse friction between contact surfaces of the bearing and the load is high after loading when an axial load and a radial load are applied to a tested bearing simultaneously, the transverse stiffness of the loading device is great, the friction between a loading head in one direction and a test assembly restricts movement of a loading head in another direction, application of the load in the other direction is further affected, loads in one or two directions cannot be completely loaded to the tested bearing, and loading of the loads is caused to be inaccurate. According to the invention, a small oil tank is placed below the bearing, a hydraulic pump extracts oil in the small oil tank, then the extracted oil is injected into a pressure oil inlet, a liquid hydrostatic pressure bearing ability is generated after the oil flows through a liquid hydrostatic pressure orifice, a hydraulic moving disc and a hydraulic static disc are connected through an elastic connecting sleeve, and a coupling effect of loads in different directions is reduced. The loading device and the loading method provided by the invention can be applied to a test device which needs to simultaneously apply two loads which are vertical with each other in direction.

The invention discloses a wooden frame energy-consuming wall body of an ancient building. The wooden frame energy-consuming wall body comprises a left wooden pillar and a right wooden pillar; the bottoms of the left wooden pillar and the right wooden pillar are connected with a ground sill through pillar base stones to be supported; a top wooden beam is arranged at the tops of the left wooden pillar and the right wooden pillar; the left wooden pillar, the right wooden pillar, the ground sill and the top wooden beam form an energy-consuming wall body supporting frame; an energy-consuming wall body main framework comprising an energy-consuming wall body outer frame and an energy-consuming wall body inner frame is arranged in the energy-consuming wall body supporting frame; shroud plates are attached onto the two sides of the energy-consuming wall body main framework; the energy-consuming wall body main framework and the shroud plates jointly form the wooden frame energy-consuming wall body of the ancient building; the wooden frame energy-consuming wall body of the ancient building is connected with the energy-saving wall body supporting frame through a bolt. The wooden frame energy-consuming wall body disclosed by the invention is smaller in lateral resistance stiffness and high in ductility and energy consumption capacity, and the structural seismic capacity and the reliability are improved. The wooden frame energy-consuming wall body is simple in structure, low in cost, convenient to construct, easy to operate and good in concealed property, can be embedded in an outsourced brick wall and can also be decorated or beautified on the outer surfaces of the shroud plate. The wooden frame energy-consuming wall body is wide in application prospect and can be used for attending the repair job of the ancient building.

A mechanical attachment for a two-stage, bi-directional shift lever vibration isolator. A shift lever has a sleeve which receives thereinside a lever vibration isolator which includes a damping body having an outer surface characterized by an hour-glass cross-section; an attachment housing within the damping body; and upper and lower washers connected to the housing. An attachment bore passes laterally through the housing and is lined by a layer of the damping body. The attachment bore is disposed in the center of recessed surfaces of the hour-glass cross-section. An attachment pin passes through the attachment bore and the sleeve. The shift lever vibration isolator is freely slidable on the attachment pin, facilitated by a clearance between the attachment pin and the bore lining layer.

The invention discloses a concrete-filled steel tube row column type connection prefabricated shear wall structure and a construction method, the concrete-filled steel tube row column type connection prefabricated shear wall structure comprises a prefabricated shear wall, row column connection components and laminated slabs which are connected with one another, the multiple groups of row column connection components are arranged in the prefabricated shear wall at intervals, and the laminated slabs are fixed on the prefabricated shear wall in a penetrating and inserting manner; the concrete-filled steel tube row column connecting component is connected with the prefabricated shear wall and the laminated slab, the application range of the concrete-filled steel tube is widened, the structure is very novel, due to the application of the concrete-filled steel tube row columns, the connecting bearing capacity is high, the anti-seismic ductility is good, the problem that concrete of the shear wall structure is prone to being damaged at the bottom is solved, and connection is reliable.

The invention provides a masonry structure-based isolated structure, which comprises a building blocks layer and an isolated layer in vertical alternating arrangement, wherein the building block layer comprises an upper reinforcement mortar layer, building blocks, and a lower reinforcement mortar layer; and the isolated layer is located between the adjacent two building block layers. The whole isolated structure is arranged between a foundation top surface and the superstructure, thus, the structure can bear most of deformation of the whole building under the action of earthquake so as to ensure safety and reliability of the superstructure. The building block layer only generates horizontal rigid motion at the time of suffering the earthquake; and the isolated layer arranged between a foundation top surface and the superstructure generates horizontal shearing deformation, which restrains the horizontal motion of the building block layer, thereby having isolating function and limit effect. The invention has the advantages of reasonable structure, simple construction and lower cost of construction, can effectively improve shock absorption and disaster prevention capacity of brickworking houses, obviously improves the isolated capacity of the brickworking houses based on the non-change traditional construction method and particularly is applied by being matched with brickworking buildings.