摘 要
随着现代工业技术的快速发展，机械结构的设计与性能优化已成为提升设备效率和可靠性的关键环节。本研究以机械结构的动态仿真与优化设计为核心，旨在通过先进的数值分析方法和优化算法，解决复杂机械系统在动态工况下的性能瓶颈问题。研究首先结合有限元分析和多体动力学理论，构建了精确的机械结构动态仿真模型，为后续优化设计提供了可靠的理论基础。在此基础上，提出了一种基于智能优化算法的多目标优化框架，该框架能够综合考虑结构强度、刚度、质量和动态响应等多方面约束条件，显著提升了优化结果的实用性和工程价值。通过将所提出的仿真与优化方法应用于典型机械结构案例，验证了其有效性与优越性。研究结果表明，优化后的机械结构在动态性能和轻量化设计方面均取得了显著改善，特别是在振动抑制和疲劳寿命提升方面表现出明显优势。
关键词：机械结构优化 动态仿真 智能优化算法
Abstract
With the rapid development of modern industrial technology, the design and performance optimization of mechanical structure have become the key link to improve the efficiency and reliability of equipment. This study takes the dynamic simulation and optimization design of mechanical structure as the core, aiming to solve the performance bottleneck problem of complex mechanical systems under dynamic working conditions through advanced numerical analysis methods and optimization algorithms. The study first combines finite element analysis and many-body dynamics theory to construct an accurate mechanical structure dynamic simulation model, which provides a reliable theoretical basis for the subsequent optimization design. On this basis, a multi-ob jective optimization fr amework based on intelligent optimization algorithm is proposed, which can comprehensively consider various constraints such as structural strength, stiffness, quality and dynamic response, and significantly improve the practicability and engineering value of the optimization results. The proposed simulation and optimization method demonstrate the effectiveness and superiority. The results show that the optimized mechanical structure shows significant improvement in both dynamic performance and lightweight design, especially in vibration suppression and fatigue life improvement.
Keyword:Mechanical Structure Optimization Dynamic Simulation Intelligent Optimization Algorithm
目 录
引言 1
1动态仿真基础理论研究 1
1.1动态仿真的基本概念 1
1.2机械结构动态特性分析 2
1.3数学建模方法探讨 2
1.4常用仿真软件介绍 3
2优化设计原理与方法 3
2.1优化设计的基本框架 3
2.2目标函数的构建方法 4
2.3约束条件的设定原则 4
2.4优化算法的选择与应用 4
3动态仿真关键技术研究 5
3.1模型简化与精度控制 5
3.2材料参数对仿真结果的影响 5
3.3边界条件的合理设置 6
3.4动态载荷的模拟方法 6
4优化设计案例分析与验证 7
4.1典型机械结构案例选择 7
4.2仿真结果的分析与评估 7
4.3优化方案的设计与实施 7
4.4实验验证与误差分析 8
结论 8
参考文献 10
致谢 11
