汽车车身时滞减振控制理论与试验研究

项目名称： 汽车车身时滞减振控制理论与试验研究

项目编号： No.51275280

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 任传波

作者单位： 山东理工大学

项目金额： 80万元

中文摘要： 车身的振动源主要来自发动机和路谱，发动机引起的激励通过悬置传递给车身，路谱的激励通过悬架传递给车身。本项目通过在被动悬置和悬架中增加时滞反馈控制来达到车身减振的目的，过去在研究带有时滞的主动悬架/悬置时，大多数学者都是研究时滞的不利影响，而本项目是想如何利用时滞减小车身的振动。主要研究内容：（1）时滞动力学的求解方法研究，为时滞动力学方程求解提供一种崭新的方法；(2）车身时滞减振控制的动力学建模研究，主要是确定反馈控制对象和反馈控制类型；（3）反馈控制参数的优化研究,提供一种确定反馈增益系数和时滞的一种较为通用方法；（4）不同工况下车身时滞减振控制理论研究：怠速工况时滞减振控制、谐振激励时滞减振控制、脉冲激励时滞减振控制和随机路谱激励时滞减振控制；（5）车身时滞减振控制的试验研究：试验台架的研制、作动器的物理特性确定、控制器的设计与开发和不同工况下车身时滞减振的试验研究。

中文关键词： 汽车车身；悬架/悬置；时滞；减振控制；台架试验

英文摘要： Generally, the automotive body vibration is caused by the exciting forces from the engine and the road irregularity, excitations of the engine and the road irregularity are transferred to the body through the mounting system and the suspensions respectively. In the past, most of the researches about active suspensions and mountings with delay mainly focused on the negative effects brought in by the time delay. In this project, a delay control theory is presented to suppress the vibration the body. The project mainly includes: (1) research on solving method of time delay dynamics equations, it will provide a novel method to solve the differential equations with delay; (2) research on the dynamics modeling for the vibration-suppressed of automotive body with time delay control, it is to determine the feedback types and the feedback objects; (3) research on optimization of the control parameters, it provides a more universal method to determine the feedback gains and the corresponding time delays; (4) research on time delay control theories of the automotive body under different working conditions such as idle, harmonic excitation, pulse excitation and random road irregularity. (5) research on experiments about suppressing vibration of the automotive body,it includes the constructing of the test bench, determinati

英文关键词： Automotive Body；Suspension/Mounting；Delay；Vibration-suppressed Control；Bench Test