53results about How to "Promote structural optimization" patented technology

A simplified fuel cell structure comprises integrated end plates and a multi-section monocell; a collector plate and a fake cell are arranged between the multi-section monocell and the two integrated end plates; the integrated end plates are made of a conductive material; one surface, which is not in contact with the multi-section monocell, of each end plate made of the conductive material is subjected to insulation treatment, and a hydrogen flow passage, an air flow passage and a cooling liquid flow passage are processed on one surface, in contact with the multi-section monocell, of each end plate and are isolated through sealant lines; a connector for line outgoing of a positive / negative pole outgoing line of a galvanic pile is processed on a side surface of each end plate. The simplified fuel cell structure has the benefits that the integrated end plates integrate the functions of the end plates, the collector plate and the fake cell, the size and the weight of the galvanic pile are reduced, and the volume ratio power density and the weight ratio power density of the galvanic pile are improved helpfully; the number of galvanic pile components is reduced, the galvanic pile structure is simplified, the reliability is improved, and the assembly and maintenance efficiency of the galvanic pile is improved; the function of edge effect of the 'fake cell' of the galvanic pile can be adjusted only by changing the structure of a fluid field of the end plate, so that structural improvement is facilitated.

The invention discloses a pre-tightened parallel six-dimensional acceleration sensor, a measuring method and a sensitivity analysis method thereof. The sensor adopts an eight-chain parallel mechanism as the elastic body structure of the sensor, which has higher rigidity and greater load-bearing capacity; the pre-tightening force can be applied to the piezoelectric ceramics through the pre-tightening device, and after the pre-tightening, the sensor can effectively The problem of distortion of the piezoelectric ceramic output signal is avoided, so that the sensor has better measurement accuracy. This measurement method can realize the real-time measurement of six-dimensional acceleration only by writing a program in the computer in advance, and its sensitivity analysis method excavates the inherent constraint relationship in the parallel mechanism of the sensor, establishes the force coordination equation, and makes the sensitivity model of the sensor hyperstatically indeterminate The solution of the problem is transformed into the solution of the statically indeterminate problem, so as to derive the analytical expression of the sensitivity of the sensor, which provides theoretical guidance for the subsequent structural optimization design of the sensor.

The invention discloses a process for preparing pipe-line coal gas by using liquid hydrocarbons as raw material comprising the steps of, pressurizing the hydrocarbon mixture of liquid hydrocarbons and LPG, subjecting to heating and gasification, loading vaporized hydrocarbon mixture to mixer b and mixing with a large quantity of air, purifying and disposing the air supply with combustion value and dew-point temperature lower than the gas phase lighter hydrocarbons and mixing in mixer a, charging air, further mixing gas in mixer a with gas in mixer b in mixer c.

The invention relates to high-magnesium composite sinter and a production method thereof. A high-magnesium fluxing agent and other raw materials are prepared, optimized and then sintered in a sinter bed, so that the problems that in terms of existing high-magnesium sinter production, resource utilization and mineral generation are unreasonable, the yield is low, the strength is low, the return mine rate is high, and the solid fuel consumption is high are solved. The high-magnesium composite sinter is formed by crushing and mixing sinter of upper and lower layer structures. With composite calcium ferrite as the main binder phase, the upper layer of sinter is formed by sintering a material A, wherein MgO accounts for not greater than 1.8%, and Al2O3 accounts for not greater than 2.0%; and the lower layer of sinter is formed by sintering a material B, and the content of MgO of the lower layer of sinter is greater than that of the MgO of the upper layer of sinter. The material A comprises72-90% of iron-containing mineral powder raw materials, 7-20% of a low-magnesium fluxing agent and 3-8% of a solid fuel; and the material B comprises 0-90% of sinter, 0-70% of sintering return mine and 10-100% of a high-magnesium fluxing agent. The high-magnesium composite sinter is good in comprehensive metallurgical performance, the blast furnace burden structure can be optimized easily, and theslag mobility and desulfuration and dealkalization effects can be improved.

A continuous fiber 3D printing path planning method for parallel optimization of fiber orientation and structure, constructs a parallel optimization model of fiber orientation and composite material structure, takes material density and fiber angle as design variables, and filters them to obtain parallel optimization of fiber orientation and composite material structure Structure: discretize the complex optimized structure into a structure of simple geometric shapes, use topology to abstract each sub-region into points, and connect the points according to the positional relationship of the optimized structure to which the sub-region belongs to form a connection containing the characteristic information of the optimized structure Graph, the path planning is classified as finding the Hamiltonian path in the connected graph; the material density value is used as the weight factor of the fiber angle to obtain the direction of the fiber trajectory in each sub-region of the optimized structure; the sub-region printing paths are sequentially connected according to the Hamiltonian path , to generate a printing code; the invention exerts the anisotropic mechanical properties of the continuous fiber reinforced composite material and meets the requirements of the 3D printing process.

The invention belongs to the technical field of simulation methods, and in particular relates to an interactive virtual reality simulation method for a backwash filter, comprising the following steps: S1, modeling: establishing a three-dimensional model of the backwash filter: S2, loading: loading the filter in Unity Model; S3, interaction design and motion simulation, 1) Forward filtering virtual scene: use iTween plug-in to define the fluid trajectory; use C# script programming to control the visibility of the arrow indicating the filtration fluid trajectory; write a time controller to control the liquid filling filter element 2) Backwash virtual scene: Use the mini-map function to zoom in on the local effect on the filter; use the iTween plug-in to define the trajectory of the backwash fluid; scripts to control the movement of the spool and filter element; create backwash water and impurities; Write a script to control the simulation process from an external device. It can truly, vividly and accurately reflect the characteristics, shape and layout of elements in the actual scene.