全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
力学学报  1995 

OPTIMAL CORRECTION OF FREQUENCYERRORS ANDSELECTION METHOD OF PARAMETERS TO BE MODIFIED
结构频率误差修正参数的最优选取问题

Keywords: correction of frequency errors,sensitivity analysis,optimal parameter to bemodified
频率
,误差修正参数,振动,最佳化,工程结构力学

Full-Text   Cite this paper   Add to My Lib

Abstract:

This paper deals with the correction of frequency errors of structure with randomdesign parameters and the selection problem for parameters to be modified.The conceptsof ideal parameter to be modified,optimal parameter to be modified and optimal parametergroup in which all parameters are optimal parameters to be modified are introduced. Theoptimal parameters to be modified,which make the expectation of the root-mean-square fre-quency errors taking the minimum value, and their quantities to be modified are obtained.The formula of the minimum value of the expectation of the root-mean-square frequencyerrors is given.Furthermore, the minimum number of optimal parameters in optimal pa-rameters group is obtained. This optimal parameter group makes the minimum value of theexpectation of the root-mean-square frequency error is equal to zero.A truss structure isused to illustrate the application of the method.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133