当前位置: X-MOL 学术Quaest. Math. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Quadratic model updating for damped gyroscopic systems
Quaestiones Mathematicae ( IF 0.7 ) Pub Date : 2020-10-14 , DOI: 10.2989/16073606.2020.1829150
Yongxin Yuan 1
Affiliation  

Abstract

This paper is concerned with the problem of the optimal approximation for a given matrix pencil (Ma, Da, Ga, Ka, Na) under the spectral constraint and the symmetric constraint. Such a problem arises in finite element model updating for damped gyroscopic systems. By using constrained optimization theory and matrix derivatives, an explicit formulation for the solution of the problem is established. The efficiency and accuracy of the proposed method is numerically verified by a simple five-degree-of-freedom system.



中文翻译:

阻尼陀螺系统的二次模型更新

摘要

本文关注在谱约束和对称约束下给定矩阵铅笔( M a , D a , G a , Ka , N a )的最优逼近问题。这样的问题出现在阻尼陀螺系统的有限元模型更新中。通过使用约束优化理论和矩阵导数,建立了用于解决问题的显式公式。所提出方法的效率和准确性通过一个简单的五自由度系统进行了数值验证。

更新日期:2020-10-14
down
wechat
bug