Analysis method for identifying multi-shaft fracture failure of steering knuckle
An analysis method and steering knuckle technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as low reliability of steering knuckles and affecting performance
Active Publication Date: 2021-11-05
VOYAH AUTOMOBILE TECH CO LTD
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[0005] The embodiment of the present application provides an analysis method for identifying the multi-axis fracture failure of the steering knuckle, so as to solve the problem in the related art that the failure of the steering knuckle fracture cannot be accurately analyzed, which leads to low reliability of the steering knuckle and affects its performance
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[0038] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.
[0039] The embodiment of the present application provides an analysis method for identifying multi-axis fracture failure of a steering knuckle, which can solve the problems in the related art that the fracture failure of the steering knuckle cannot be accurately analyzed, resulting in low reliability of the steering knuckle and affe...
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The invention relates to an analysis method for identifying multi-shaft fracture failure of a steering knuckle, and relates to the field of structural strength analysis of automobile parts. The analysis method comprises the following steps: firstly, establishing a whole vehicle dynamic model, and obtaining theoretical load data of a steering knuckle under the working condition of misuse of crossing a transverse ditch; then performing contribution degree analysis, and determining three target loads which cause the fracture of the steering knuckle and have the highest contribution degree to be an upper ball head Y-direction force, a lower front ball head Z-direction force and a steering pull rod point Y-direction force; then, obtaining the upper ball head Y-direction force and the steering pull rod point Y-direction force of the actual whole vehicle under the transverse ditch misuse working condition; correcting the whole vehicle dynamics model to determine the Z-direction force of the lower front ball head; reproducing the fracture to obtain a structural strength parameter of the steering knuckle; and carrying out reliability calculation and analysis to judge whether the reliability reaches the standard or not. According to the analysis method provided by the invention, the problems that the reliability of the steering knuckle is low and the use performance of the steering knuckle is affected due to the fact that fracture failure of the steering knuckle cannot be accurately analyzed in related technologies are solved.
Description
technical field [0001] The present application relates to the field of structural strength analysis of auto parts, in particular to an analysis method for identifying multi-axis fracture failure of steering knuckles. Background technique [0002] The steering knuckle is one of the main parts on the steering axle of the automobile. The function of the steering knuckle of the automobile is to transmit and bear the front load of the automobile, support and drive the front wheel to rotate around the king pin to make the automobile steer. The wheels and brakes are installed in the steering wheel. On the knuckle, when turning, the steering knuckle rotates around the kingpin. The steering knuckle, also known as "claw", can make the car run stably and transmit the driving direction sensitively. In the actual driving process, it not only bears the force of the ground passing through the tire, but also plays the role of connecting the car body, suspension system, front The axles, ste...
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IPC IPC(8): G06F30/17G06F30/15G06F119/02G06F119/14
CPCG06F30/17G06F30/15G06F2119/02G06F2119/14Y02T90/00
Inventor 邓晓姣付斌刘侃马川裴金顺
Owner VOYAH AUTOMOBILE TECH CO LTD