Equation distribution pressure-based method for realizing bearing shell load simulation

Abstract

The invention discloses an equation distribution pressure-based method for realizing bearing shell load simulation. Radial force of a bearing is loaded in a radial hemihedral region in an equation distribution pressure form; the value of the force is changed with the position; a direction is always perpendicular to a loading surface, so that a stress state of a shell is closer to reality; by adopting a linear solver, stress and displacement calculation results of the shell are obtained; and a simpler and more reliable basis is provided for shell quality assessment, structure design optimization, rib position arrangement and the like. According to the method, a bearing part and a contact pair do not need to be established, so that calculation convergence is ensured and the labor and calculation costs are greatly reduced on the premise of ensuring calculation accuracy; and therefore, the requirements of simple modeling, short calculation time and low resource occupation are met and the accuracy of a calculation result can be ensured.

Description

technical field [0001] The invention relates to a technology in the field of mechanical design, in particular to a method for realizing load simulation of a bearing shell based on equation distributed pressure. Background technique [0002] The finite element method is a practical engineering numerical analysis method developed with the rapid development of computer technology, and has become an indispensable calculation tool in the structural analysis of aviation, aerospace, machinery, civil engineering and other fields. Virtual simulation has replaced part of traditional experiments, which greatly shortens the design cycle and reduces the design cost. For example, the structural stress analysis of the transmission casing can find the location of stress concentration at the design stage, providing a basis for structural design optimization. However, the accuracy and efficiency of finite element analysis often restrict each other, and it is difficult to balance: a finer mes...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the existing technology cannot balance accuracy and high efficiency, the present invention proposes a bearing shell load simulation implementation method based on equation distribution pressure, by loading the bearing radial force on the radial half surface in the form of equation distribution pressure, The magnitude of the force changes with the position, and the direction is always perpendicular to the loading surface, which is more consistent with the actual force situation. And the linear solver can be used to obtain more accurate shell stress and displacement calculation results with less modeling and calculation time

Images