A service life evaluation method and device of a steering gear support and a storage medium
An evaluation method and technology of an evaluation device, applied in the field of vehicle steering system, can solve the problems of the strength and life test evaluation of the steering gear bracket, the lack of given process and evaluation parameter standards, the fracture of the vehicle steering gear bracket, etc., to save the test cost and Development time, avoidance of bench testing, effect of reducing fracture risk
Pending Publication Date: 2021-10-08
DONGFENG SHENYU VEHICLE CO LTD
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Problems solved by technology
[0004] At present, in order to evaluate the service life of the steering gear bracket, the existing technology does not provide a complete process and evaluation parameter standards, and the national standard does not stipulate the strength and life test evaluation of the steering gear bracket, resulting in such parts in the design stage. It is often ignored, resulting in the breakage of the steering bracket of the vehicle, causing safety accidents, etc.
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[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.
[0041] see figure 1 As shown, the embodiment of the present invention provides a method for evaluating the life of a steering gear bracket, the method comprising the following steps:
[0042] S1. Establish a finite element model for simulating the force analysis of the steering gear bracket.
[0043] Specifically, in this embodiment, first use the three-dimensional design software to complete the prototype of the steering gear bracket, and then complete the assembly between the steering gear bracket, steering gear and vehicle frame, etc., s...
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The invention discloses a service life evaluation method and device of a steering gear support and a storage medium, and relates to the field of vehicle steering systems. The method comprises the following steps of building a finite element model used for simulating stress analysis of the steering gear support; determining a steering gear torque needing to be applied by a current steering gear bracket, and loading and constraining the finite element model; acquiring corresponding static stress data based on the applied steering gear torque, and judging whether the static stress is in a safe range or not; when the static stress is within a safe range, loading the steering gear torque in a cosine curve form so as to carry out fatigue analysis on the steering gear bracket and obtain actual fatigue life times; and judging whether the fatigue life of the steering gear bracket reaches the standard or not according to the actual fatigue life times and the preset target fatigue life times. By means of the method, the alternating load process in the vehicle using process can be well restored, and a large amount of work of detecting dynamic load data through a real vehicle is avoided.
Description
technical field [0001] The invention relates to the field of vehicle steering systems, in particular to a life evaluation method, device and storage medium of a steering bracket. Background technique [0002] The steering gear is an indispensable part in the steering system of the car. The steering gear is fixed on the frame of the car through the steering gear bracket. Its function is to connect the steering shaft and the steering rod to make the car turn. [0003] Due to the special working conditions of the steering gear bracket, especially for coach car models, frequent back and forth cycle steering is required, and the steering gear bracket is subject to changing loads for a long time. Therefore, higher requirements are placed on the life of the steering gear bracket. [0004] At present, in order to evaluate the service life of the steering gear bracket, the existing technology does not provide a complete process and evaluation parameter standards, and the national st...
Claims
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IPC IPC(8): G06F30/15G06F30/17G06F30/23G06F111/04G06F119/04G06F119/14
CPCG06F30/15G06F30/17G06F30/23G06F2119/04G06F2119/14G06F2111/04
Inventor 刘广赵浩南杨雄王亚平周志强佟健宇李文君
Owner DONGFENG SHENYU VEHICLE CO LTD