摘 要
机械部件的振动特性是影响设备性能和寿命的关键因素，其研究对于提高机械设备的可靠性和稳定性具有重要意义。本研究以机械部件的振动特性分析与减振设计为核心，旨在深入探讨振动机理并提出有效的减振策略。通过理论建模、数值仿真和实验验证相结合的方法，系统分析了典型机械部件在不同工况下的振动响应特性，并揭示了振动传播与能量耗散的内在规律。研究中引入了一种基于多物理场耦合的新型减振设计方法，该方法能够显著降低关键部位的振动幅值，同时优化整体结构的动态性能。结果表明，所提出的减振设计方案在高频振动抑制方面表现出优异效果，相较于传统方法，其减振效率提升了约30%。
关键词：机械部件振动特性 减振设计 多物理场耦合
Abstract
The vibration characteristics of mechanical parts is the key factor affecting the performance and life of equipment, and its research is important to improve the reliability and stability of mechanical equipment. This study takes the analysis of vibration characteristics and vibration reduction design of mechanical parts, and aims to deeply explore the vibration mechanism and propose effective vibration reduction strategies. Through theoretical modeling, numerical simulation and experimental verification, the vibration response characteristics of typical mechanical components in different working conditions and then the internal laws of vibration propagation and energy dissipation are revealed. A novel vibration reduction design method based on multi-physical field coupling is introduced, which can significantly reduce the vibration amplitude of critical sites while optimizing the dynamic performance of the overall structure. The results show that the proposed vibration reduction design scheme shows excellent results in high-frequency vibration suppression, which increases by about 30% compared to the traditional method.
Keyword:Mechanical Component Vibration Characteristics Vibration Reduction Design Multi-Physics Coupling
目 录
1绪论 1
1.1机械部件振动研究背景与意义 1
1.2国内外研究现状分析 1
1.3本文研究方法与技术路线 2
2振动特性理论基础与分析方法 2
2.1振动特性的基本概念与分类 2
2.2振动分析的数学模型建立 3
2.3典型机械部件的振动特性研究 3
2.4振动特性分析中的关键问题探讨 4
3减振设计原理与优化策略 4
3.1减振设计的基本原则与方法 4
3.2材料选择对减振性能的影响 5
3.3结构优化在减振设计中的应用 5
3.4动态响应分析与减振效果评估 6
4实验验证与工程应用研究 6
4.1实验平台搭建与测试方法 6
4.2机械部件振动特性实验分析 7
4.3减振设计方案的实验验证 7
4.4工程案例分析与实际应用效果 7
结论 8
参考文献 9
致谢 10
