智能式动力吸振器的仿真与研制
关键词 智能材料 动力吸振器 有限元分析 固有频率 模态19300
毕业设计说明书（论文）外文摘要
Title Intelligent dynamic vibration absorber simulation and development
Abstract
The traditional dynamic vibration absorber simple structure, vibration absorption band is very narrow. The actual vibration source is always working conditions or other circumstances because of changes, whether Active Tuned Vibration Absorbers own natural frequency of vibration absorber is currently a hot research based on changes in the frequency of the main structure. This paper presents a smart vibration absorber model, in terms of quality - the introduction of the elastic modulus of variable material spring vibration absorber based on and establish appropriate control system, when the frequency of the main changes in the structure, smart materials can respond quickly and drive, resulting in a very short period of time so that vibration absorber elastic modulus change, bring the whole frequency absorber also will be changed to match the frequency of the exciting force, so as to achieve the intelligent shock absorbing function. In this paper, the finite element simulation and experimental simulations to verify the validity of the model
Keywords：Smart Materials DVA Finite Element Analysis Natural modes
目 次
1 绪论 1
1.1 工程研究背景和意义 1
1.2 动力吸振器国内外研究现状 1
1.2.1 动力吸振器理论体系建立 1
1.2.2 动力吸振器发展现状及前景 2
1.2.3 动力吸振器的构成元素 2
1.3 智能材料国内外研究现状 3
1.3.1智能材料的概念和特征 3
1.3.2 智能材料的基本组元 3
1.3.3 智能材料应用前景及趋势 4
1.3.4智能材料在噪声控制和振动方面的应用 5
1.4 本论文研究内容与研究方法 5
1.4.1 研究内容 5
1.4.2 研究方法 5
2 动力吸振的原理和设计 7
2.1 动力吸振原理 7
2.1.1无阻尼动力吸振器 7
2.1.2 阻尼动力吸振器 8
2.2 几种传统动力吸振的设计方法 8
2.2.1 无阻尼动力吸振器 8
2.2.2 阻尼动力吸振器 8
2.3 复式动力吸振器的最优设计 9
2.4 智能式吸振器的设计思路 10
3 有限元仿真和模态分析 12
3.1有限元仿真分析 12
3.1.1 ANSYS软件介绍 12
3.1.2 求解吸振器的固有振型频率 12
3.1.3 智能吸振器的固有振型 17