基于非比例阻尼模态叠加的阻尼合金动力学拓扑优化研究  

Study on Dynamic Topology Optimization of Damping Alloys Based on Non-proportional Damping Modal Superposition

作　　者：高红波 韩学杰 张本贺 林磊[1] 周帅 陈志林[1] GAO Hongbo;HAN Xuejie;ZHANG Benhe;LIN Lei;ZHOU Shuai;CHEN Zhilin(Suzhou Nuclear Power Research Institute,Suzhou,Jiangsu Prov.215004,China;Yangjiang Nuclear Power Plant Co.,Ltd.,Yangjiang,Guangdong Prov.529500,China)

机构地区：[1]苏州热工研究院有限公司,江苏苏州215004 [2]阳江核电有限公司,广东阳江529500

出　　处：《中国核电》2024年第2期202-209,共8页China Nuclear Power

基　　金：中国广核集团首席专项。

摘　　要：针对阻尼合金在动力学拓扑优化中的非比例阻尼特征,基于实模态进行非比例阻尼结构响应的迭代模态叠加算法,结合移动渐近线方法,构建了一种考虑非比例阻尼特性的阻尼合金动力学拓扑优化模型。案例分析结果表明:该模型较传统的基于比例阻尼的拓扑优化方法对阻尼合金的形状和布局优化具有更佳效果,可为类似阻尼合金在应用中的形状和布局设计提供思路借鉴和方案参考。In response to the non-proportional damping characteristics of damping alloys in dynamic topology optimization,this study developed an iterative modal superposition algorithm based on undamped eigenvectors,coupled with the method of moving asymptotes.A novel dynamic topology optimization model incorporating non-proportional damping features for damping alloys was thus constructed.The case analysis demonstrates that this model,which considers non-proportional damping characteristics,outperforms traditional proportional damping-based topology optimization methods in optimizing the shape and layout of damping alloys.The findings of this study provide valuable insights and reference for the design of shape and layout in the application of similar damping alloys,highlighting the model s enhanced effectiveness in shape and layout optimization.

关 键 词：阻尼合金 非比例阻尼 动力学 拓扑优化 

分 类 号：O39[理学—工程力学]