简支梁的冲击动载荷识别的试验研究
关键词: 动态载荷识别 简支梁系统 动力学逆问题 冲击试验
毕业设计说明书（毕业论文）外文摘要
Title Experimental study on dynamic load identification system for the simple beam
Abstract
Dynamic load identification is the subject of the main issues to be addressed,it is a problem of Wavelet Deconvolution Method,it needs the second class of inverse dynamics problem to support.My issue is by simple beam impact vibration response of the system to identify it in turn impact force.I need to design a pilot scheme and build test systems by this research project,then test and debug,and then analyze and compare the experimental data.Finally,we can get the experimental results.The main goal of this study is to establish the inverse problem model.With the rapid development of the field of engineering.the identification of dynamic loads are becoming increasingly important.So many scholars of studying dynamic load identification do hard work to research the dynamic load identification method.Domestic and foreign scholars have made a lot of effort on studying dynamic load identification method.This topic is to establish simple beam system model by AUTO-CAD by some dynamic load identification methods based on existing research and process the actual model.Then we can get the test data through the impact test, analyze and compare these data by MATLAB.Finally,we can get the summary of this subject.
Keywords: Dynamic load identification Simple Beam system Inverse dynamics problem Impact Test
目 次
1 绪论 1
1.1 课题研究背景，目的及意义 1
1.2 相关概念与软件的介绍 1
1.3 动态载荷识别的研究现状 3
1.4 动态载荷识别的发展前景 6
1.5 本文的组织结构以及思路 6
2 基于小波反卷积与基于广义正交域动载荷识别两种方法的介绍 7
2.1 基于小波反卷积动载荷识别的方法 7
2.1.1 响应测量和逆问题 7
2.1.2 频域反褶积 12
2.1.3 小波反卷积法 13
2.1.4 力的重建 16
2.1.5 具体算例 17
2.2 基于广义正交域动载荷识别的方法 21
2.2.1 广义正交多项式理论与性质（切比雪夫多项式） 21
2.2.2 时间有限元法 22
2.2.3 单自由度系统载荷识别 22
3 建立简支梁模型以及进行冲击实验 25
3.1 如何利用Auto-CAD建立简支梁模型系统 25
3.2 设备调试以及进行冲击实验 27
4 建立逆问题模型并进行数据分析比较 32