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锥体接触宽度对冰排弯曲破坏模式影响的有限元分析
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虚拟激励法在国内外工程界的应用回顾与展望
基于功率谱密度的结构动力模型修正方法
Release time:2019-03-10
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Indexed by:
会议论文
First Author:
王凤阳
Co-author:
赵岩,林家浩
Date of Publication:
2008-05-01
Document Type:
A
Page Number:
206-212
Key Words:
功率谱密度;模型修正;虚拟激励法;结构动力;动力模型;工程结构
Abstract:
本文提出一种基于随机激励功率谱密度的结构动力模型修正方法. 以计算功率谱密度与测试功率谱密度之间的相对误差为目标函数，通过设计变量的调整，使结构模型参数变化，实现误差最小化，即实现了模型的修正.算例表明，本文方法不仅具有良好的精度，且易于推广应用于大型复杂工程结构.
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