Method for checking front suspension-steering motion based on skeleton model

Abstract

The invention discloses a method for checking a front suspension-steering motion based on a skeleton model, and belongs to the technical field of complete vehicle and chassis design. According to thechecking method disclosed by the invention, based on PRO software, a simple and parameterized suspension-steering three-dimensional skeleton model is established, and a suspension is associated with asteering system together, so the checking can be performed on a front suspension-steering system effectively and systematically during an initial period of the whole vehicle design. With a consideration to main input parameters such as a rotating angle of a steering wheel and a suspension hop, according to assembly sizes of the actual front suspension and steering part, a three-dimensional skeleton model is intuitively established; a checking target mainly is a rotating angle of a steering suspension arm, and associated design target parameters of the steering system in itself also can be checked more comprehensively. The checking method of the invention breaks through limitations of two-dimensional diagram checking; sizes of different suspension system and steering system can be implemented very easily in modification by changing relevant input parameters; and thus, the multi-scheme checking efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of complete vehicle and chassis design, in particular to a method for checking the front suspension-steering motion based on a skeleton model. Background technique [0002] At present, the motion check of the suspension-steering system mainly uses the SAE method to determine the center of the motion track of the center of the leaf spring main piece, and then checks on the two-dimensional map. This method is relatively simple. For a simple suspension system , using this checking method can meet the requirements; but for the lack of checking of dynamic processes such as steering wheel movement and suspension jump, two-dimensional checking has defects, and it is impossible to comprehensively check the suspension-steering system in the early stage of vehicle design Whether the design goals are met. However, using ADAMS to check is more cumbersome, and it is not conducive to the needs of multi-scheme design in t...

AI Technical Summary

Problems solved by technology

[0002] At present, the motion check of the suspension-steering system mainly uses the SAE method to determine the center of the motion track of the center of the leaf spring main piece, and then checks on the two-dimensional map. This method is relatively simple. For a simple suspension system , using this checking method can meet the requirements; but for the lack of checking of dynamic processes such as steering wheel movement and suspension jump, two-dimensional checking has defects, and it is impossible to comprehensively check the suspension-steering system in the early stage of vehicle design Does it meet the design goals

However, using ADAMS to check is more cumbersome, and it is not conducive to the needs of multi-plan design in the concept design stage

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