毕业论文移动版

摘要:惯容器是近年提出的具备两个终端的机械元件,以滚珠丝杠式惯容器为研究宗旨，基于非线性因素对惯容器力流传播经过的影响机理，设计了包含滚珠丝杠中的摩擦以及丝杠弹性效应在内的非线性惯容器的力学模型。本文将介绍惯容器的改进设计，通过使用惯容器来吸收车身增加的传统动态振动。已创建的一种称为ISD悬架的新型悬架结构，包括惯质，弹簧和阻尼器三部分。研究考虑了包含ISD悬架的双重质量振动模型。并通过遗传算法的优化获得到优化后的参数，以研究不同激励下的力学响应特性，将惯容器输出力仿真与试验结果进行分析和对比。通过频域仿真以及力学仿真可以做到ISD悬架可以有效提高悬架系统的吸振性能，相比于被动悬架，ISD悬架具有更好的阻尼性能的同时，也更好地增加了车辆的舒适性。证明本文提出对ISD悬架的改进设计是成功的。

关键字：惯容器；悬架结构；参数优化；振动特性；车辆；舒适性

Abstract:The container is used with two terminal mechanical components proposed in recent years, the container used as the research object to the ball screw, based on nonlinear factors on the influence mechanism of inerter force flow propagation process, considering the nonlinear mechanical model of friction container used in ball screw and screw elastic effect. This paper introduces the improved design of the inertial container, which uses the container to absorb the traditional dynamic vibration of the body. A new suspension structure called the ISD suspension, consisting of three parts: the inertia, the spring, and the damper, has been created. The dual mass vibration model with ISD suspension is considered. The optimized parameters are obtained by genetic algorithm, and the mechanical response characteristics under different excitations are studied. The results of simulation and test of the output force of the container are analyzed and compared. Through the frequency domain simulation can be done ISD suspension can effectively improve the vibration absorbing performance of suspension system, compared with passive suspension, the suspension has better damping performance of ISD, this paper proves the improved design of the ISD suspension is successful.

Key words: Inertia container; suspension structure; parameter optimization；vehicle； comfort

目录

第一章绪论 1

1.1引言 1

1.2研究背景 1

1.3惯容器介绍及研发历程 2

1.4国内外研究现状及存在问题 5

1.5本文主要研究内容及研究步骤 5

1.6本章小结 6

第二章振动的应用 7

2.1振动力学在工程中的应用 7

2.2相关软件的现状与发展 7

2.3本章小结 9

第三章建模与参数优化 10

3.1车辆悬架系统的简单介绍 10

3.2仿真与建模 11

3.3参数优化 15

3.4本章小结 17

第四章图像分析 18

4.1位移、速度时间历程图 18

4.1.1 引言 18

4.1.2 位移、速度时间历程图 (责任编辑：qin)