Dynamics simulation analysis method of uniformly distributed load bearing system

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...

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 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 software, but the load can only be the uniform load Apply point by point after converting into concentrated load

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