Stiffness and damping optimization method of contact part of automobile seat rail
A technology for car seats and contact parts, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve inaccurate and other problems
Active Publication Date: 2017-03-01
UNIV OF SHANGHAI FOR SCI & TECH +1
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[0004] The purpose of the present invention is to overcome the defects of the prior art, provide a method for optimizing the stiffness and damping of the contact part of the car seat guide rail, and solve the inaccurate problems caused by the existing analytical method to obtain the stiffness and the use of empirical values to obtain the damping
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0032] What the present invention intends to explain is a complete set of methods for quickly obtaining the equivalent parameters of the junction between the inner steel ball and the inner and outer rails of the car seat guide rail by combining the test and the finite element optimization method. In the modeling process, the spring damping unit is used to replace the contact between the inner steel ball and the inner and outer rails. The properties of the spring damping unit are determined by two parameters of stiffness and damping. The equivalent parameters of the junction between the rails are the optimized values of the stiffness and damping of the spring damping unit, and the simulation model can be established with the optimized values of stiffness and damping, which can accurately simulate the correct connection relationship of the inn...
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The invention relates to a method for optimizing the rigidity and the damping of the contact part of an automobile seat guide rail. According to the method, testing and finite element optimizing are combined to quickly obtain equivalent parameters of the joint part of inner steel balls and inner and outer rails of the automobile seat guide rail. In the modeling process, a spring damping unit replaces contact between the inner steel balls and the inner and outer rails, wherein the attribute of the spring damping unit is determined by the two parameters of rigidity and damping. According to the method, the obtained equivalent parameters of the joint part of the inner steel balls and the inner and outer rails of the automobile seat guide rail are optimized values of the rigidity and the damping of the spring damping unit, the correct connection relation of the joint part in the automobile seat guide rail can be accurately simulated by establishing a simulation model according to the optimized values of the rigidity and the damping, and therefore the accuracy of a simulation structure can be effectively guaranteed.
Description
technical field [0001] The invention relates to an optimization method for the rigidity and damping of a contact part of a guide rail of an automobile seat, in particular to an optimization method for the stiffness and damping of a contact part of a guide rail of an automobile seat based on tests and finite element analysis. Background technique [0002] The car seat guide rail is the connection between the car seat and the body (mainly composed of inner rails, outer rails, steel balls, cages, tabs, etc. With the development of finite element calculation technology, the application of finite element technology to the seat Modeling and simulating the dynamic characteristics of each component has become an effective means to solve the dynamic problem of the car seat, and whether an accurate and scientific finite element model of the seat rail can be established has become the main factor affecting the accuracy of the simulation analysis. [0003] In the finite element modeling...
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IPC IPC(8): G06F17/50
Inventor 余慧杰丁晓红张晨韩佳慧王海华
Owner UNIV OF SHANGHAI FOR SCI & TECH