Dynamics simulation analysis method of uniformly distributed load bearing system

A technology of dynamic simulation and uniform load distribution, which is applied in special data processing applications, instruments, electrical digital data processing, etc., to reduce R&D costs and risks, shorten R&D cycles, and improve quality

Inactive Publication Date: 2015-10-28
AVIC SAC COMML AIRCRAFT
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  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the system bearing the uniform load, there are two commonly used methods traditionally: one is to simulate the application of the uniform load in the finite element software, and the constraint is usually directly used by the RBE2 element, the BUSH element, the common node element or the solid Indirect constraints directly limit

Method used

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  • Dynamics simulation analysis method of uniformly distributed load bearing system
  • Dynamics simulation analysis method of uniformly distributed load bearing system
  • Dynamics simulation analysis method of uniformly distributed load bearing system

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Embodiment Construction

[0029] The invention will be further described in detail with reference to the accompanying drawings by taking an outward-opening hatch of an aircraft as an example below, but the specific embodiments of the present invention are not limited thereto. All those that realize the functions of the present invention according to the inventive spirit, characteristics, modes and functions of the present invention are within the protection scope of the present invention.

[0030] Such as figure 1 A kind of flowchart of the dynamic simulation analysis method of the system bearing uniformly distributed load of the present invention; Concrete steps of the present invention are as follows:

[0031] 1) Model the hatch structure in the Patran environment and generate a neutral format file:

[0032] Through the interface between Catia and Patran, the structure of the outward-opening hatch is imported into the Patran software, and under the Patran software environment, the finite element mod...

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Abstract

The invention relates to a dynamics simulation analysis method of a uniformly distributed load bearing system. The method comprises the following steps of: (1) performing finite element modeling on the system in Patran software environment; (2) applying uniformly distributed load to a built system model, adding constraints, and generating a node balance load file of a finite element model; (3) processing a neutral format file and the load file through a DOS (Disk Operating System) to generate the neutral format file, wherein the neutral format file can be input by Adams software and includes load information; (4) inputting the neutral format file including the load information into the Adams software to generate an Adams dynamics simulation model of the analyzed system; (5) performing pre-processing setting on the simulation model, and performing simulation calculation; and (6) performing post-processing on the calculation result of the Adams software, and completing the subsequent system intensity analysis work. The method has the advantages that the analysis model consistent with the real loaded and constraint condition of the system is built; the calculation precision and the reliability in the system design process are effectively improved; the development period is shortened; and the development cost is reduced.

Description

technical field [0001] The invention belongs to the field of dynamic simulation analysis methods, in particular to a dynamic simulation analysis method for a system bearing uniformly distributed loads. Background technique [0002] In reality, there are many systems that bear uniformly distributed loads, such as pressurized loads on civil aircraft, wind loads on automobiles, water pressure on ships, and so on. Regarding the system bearing the uniform load, there are two commonly used methods traditionally: one is to simulate the application of the uniform load in the finite element software, and the constraint is usually directly used by the RBE2 element, the BUSH element, the common node element or the solid Indirect constraints directly limit the relative motion between systems, which oversimplifies the constraint relationship between systems; the other is to directly use real constraints to simulate the connection relationship between systems in dynamic simulation softwar...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 吕国成韩冬孟凡力张伟高卫亮陈瑞东
Owner AVIC SAC COMML AIRCRAFT
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