摘 要
振动现象广泛存在于各类机械系统中，对机械系统的性能、寿命及安全性有着重要影响。为深入探究机械系统中的振动理论并寻求有效的控制方法，本研究基于经典振动理论与现代控制理论，结合有限元分析、模态分析等先进数值计算手段，针对复杂机械结构的非线性振动特性展开系统研究。通过建立精确的动力学模型，采用多种非线性分析方法揭示了不同工况下机械系统的振动机理，提出了基于智能算法的主动控制策略，实现了对复杂振动的有效抑制。研究结果表明，所提出的控制方法能够显著降低机械系统的振动幅度，在提高系统稳定性方面具有明显优势。这一成果不仅丰富了机械振动理论体系，而且为工程实际应用提供了新的思路和技术支持，特别是在航空航天、精密制造等领域展现出广阔的应用前景。
关键词：机械振动 非线性动力学 智能控制算法
Abstract
Vibration phenomenon exists widely in all kinds of mechanical systems, and has an important impact on the performance, life and safety of mechanical systems. In order to deeply explore the vibration theory in mechanical systems and seek effective control methods, this study is based on classical vibration theory and modern control theory, combined with advanced numerical calculation methods such as finite element analysis and modal analysis, and systematically studies the nonlinear vibration characteristics of complex mechanical structures. The vibration mechanism of mechanical system under different working conditions is revealed by setting up accurate dynamic model and using a variety of nonlinear analysis methods. An active control strategy based on intelligent algorithm is proposed to realize effective suppression of complex vibration. The results show that the proposed control method can significantly reduce the vibration amplitude of the mechanical system and has obvious advantages in improving the stability of the system. This achievement not only enriches the theoretical system of mechanical vibration, but also provides a new idea and technical support for practical engineering applications, especially in aerospace, precision manufacturing and other fields to show broad application prospects.
Keyword:Mechanical Vibration Nonlinear Dynamics Intelligent Control Algorithm
目 录
1绪论 1
1.1研究背景与意义 1
1.2国内外研究现状 1
2振动理论基础分析 1
2.1振动的基本概念 1
2.2单自由度系统振动 2
2.3多自由度系统振动 2
3振动控制方法探讨 3
3.1主动控制技术 3
3.2被动控制策略 4
3.3混合控制方法 4
4工程应用实例研究 5
4.1典型机械系统案例 5
4.2控制效果评估指标 5
4.3实验结果与分析 6
结论 7
参考文献 8
致谢 9
