Dynamic load checking method and device for steering knuckle and computer storage medium

A dynamic load and steering knuckle technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve the problem that it is difficult to accurately predict the impact resistance of steering knuckles and find risk locations in advance, without considering the effect of strain rate on material hardening The softening effect of temperature on the structure, time-consuming and labor-intensive problems

Pending Publication Date: 2020-11-13
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology

However, the virtual impact analysis method only considers the relationship between stress and strain, and does not consider the effect of strain rate on material hardening and temperature on the softening effect of structure, while the experimental impact me

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  • Dynamic load checking method and device for steering knuckle and computer storage medium
  • Dynamic load checking method and device for steering knuckle and computer storage medium
  • Dynamic load checking method and device for steering knuckle and computer storage medium

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Embodiment Construction

[0032] The technical solutions of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments of the description. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] see figure 1 , is a schematic flowchart of a dynamic load checking method for a steering knuckle provided in an embodiment of the present invention, and the dynamic load checking method for a steering knuckle can be performed by a dynamic load checking device for a steering knuckle provided in an embodiment of the present in...

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Abstract

The invention discloses a dynamic load checking method of a steering knuckle. The method comprises the following steps: acquiring a plurality of equivalent stresses and a plurality of effective fracture strains correspondingly acquired by round bar tensile tests at different temperatures and different strain rates; fitting a relational expression of the stress, the strain rate and the temperatureaccording to different temperatures, different strain rates and a plurality of corresponding equivalent stress; fitting a relational expression between the effective fracture strain and the accumulated damage parameter according to different temperatures, different strain rates and a plurality of corresponding effective fracture strains; and according to the relational expression of the stress, the strain rate and the temperature and the relational expression of the effective fracture strain and the accumulated damage parameter, adopting the set load level to perform impact simulation on the knuckle, and adopting a finite element algorithm to calculate the accumulated damage parameter used for representing different load levels. According to the dynamic load checking method and device forthe steering knuckle and the computer storage medium, the impact resistance of the steering knuckle can be accurately predicted, and the risk position can be found in advance to provide help for optimization design.

Description

technical field [0001] The invention relates to the technical field of steering knuckles, in particular to a dynamic load checking method, device and computer storage medium of a steering knuckle. Background technique [0002] As one of the very important safety parts on the car chassis, the steering knuckle not only bears the force of the ground through the tires, but also acts as a bridge hub connecting the car body, suspension system, front axle, steering system and brakes. The harsh working environment and special functions of the steering knuckle determine that it plays an important role, especially when the car is running, it is easily deformed and broken by the lateral impact load, and in severe cases, it will cause traffic accidents. Therefore, it is required It has high impact strength. However, there are mainly two existing methods for checking the impact resistance of steering knuckles: one is the virtual impact analysis method, which simulates the impact process...

Claims

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Application Information

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IPC IPC(8): G06F30/23G06F119/14
CPCG06F30/23G06F2119/14
Inventor 周德生胡浩炬邓小强
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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