区间参数鼓式制动器制动稳定性分析

兰州理工大学学报 ›› 2024, Vol. 50 ›› Issue (4): 50-54.

区间参数鼓式制动器制动稳定性分析

何宁^*, 张德龙, 张庆华

甘肃机电职业技术学院, 甘肃天水 741000

收稿日期:2022-05-25 出版日期:2024-08-28 发布日期:2024-08-30
通讯作者: 何宁(1994-),男,甘肃静宁人,讲师.Email:1146153618@qq.com
基金资助:
甘肃省自然科学基金(18JR3RE422),高校教师创新基金(2024A-313)

Stability analysis of drum brake based on interval parameters

HE Ning, ZHANG De-long, ZHANG Qing-hua

Gansu Institute of Mechanical and Electrical Engineering, Tianshui 741000, China

Received:2022-05-25 Online:2024-08-28 Published:2024-08-30

摘要/Abstract

摘要： 针对鼓式制动器在制动过程中出现的噪声抑制问题,引入区间理论,提出了含区间参数的鼓式制动器稳定性分析方法.该方法采用区间参数描述鼓式制动系统的制动不确定性,将摩擦片、制动鼓和制动蹄的杨氏模量作为设计变量.通过修正后的加权不稳定系数衡量系统的稳定性,结合响应面法与复特征值技术,构造了含区间参数的鼓式制动系统加权不稳定系数响应面代理模型,实现了鼓式制动系统有限元模型的参数化.结合区间可靠性理论,对某型轿车鼓式制动系统制动稳定性进行研究,分析了基于各部件杨氏模量不确定条件下鼓式制动系统稳定性的变化规律.结果表明,在参数不确定条件下,考虑且加大控制制动蹄和摩擦片的杨氏模量,能够有效改善制动系统的稳定性,该方法对噪声抑制具有一定的工程指导意义.

关键词: 制动噪声, 区间参数, 稳定性分析, 复特征值法, 响应面法

Abstract: To suppress brake squeal, a stability and reliability analysis of drum brake with interval uncertainty parameters is presented based on the response surface method, finite element complex eigenvalue analysis, and theories of reliability. In the proposed method, Young’s modulus of the friction plate, brake shoe, and brake drum is treated as uncertain parameters, with the interval parameters describing the uncertainties in the braking system. Then, a response surface approximation model of the coefficient with interval uncertainty parameters is built up in a drum brake, achieving model parameterization for brake stability analysis. Furthermore, by combining interval analysis with reliability analysis, the drum brake system model uses the proposed method, the statistical regularities of the drum brake system with the uncertainty of Young’s modulus are analyzed, and the results show that enhancing the control over the Young's modulus of the brake shoe and friction plate can improve the vibration stability of a brake system effectively and reliably under uncertainty conditions. Reference value is provided for the suppression of brake noise in engineering.

Key words: brake squeal, interval parameters, stability, complex eigenvalue, response surface

中图分类号:

U463.51

何宁, 张德龙, 张庆华. 区间参数鼓式制动器制动稳定性分析[J]. 兰州理工大学学报, 2024, 50(4): 50-54.

HE Ning, ZHANG De-long, ZHANG Qing-hua. Stability analysis of drum brake based on interval parameters[J]. Journal of Lanzhou University of Technology, 2024, 50(4): 50-54.

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