.png){kind=icon}
返回
Sensitivity-based operational mode shape normalisation
.png){kind=icon}
PRE
AI
DOI：10.1006/mssp.2002.1498.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
In the past few years, in-operation modal analysis has become a valid alternative for structures where classic forced vibration tests would be difficult, if not impossible, to conduct. A disadvantage of this method is that the excitation forces are unknown. Therefore, not all modal parameters can still be estimated. As a result, operational mode shape estimates remain unscaled (dependent on the unknown level of excitation) what restricts the applicability of operational modal models. So far, no techniques are available for the correct re-scaling of operational mode shapes purely based on experimental output-only data. All known methods involve either a detailed knowledge of the material characteristics of the test structure (finite element model approach) or make very restrictive assumptions about the excitation signal. In this contribution, a sensitivity-based method is proposed for the scaling of operational mode shapes on a basis of operational modal models only. (C) 2002 Elsevier Science Ltd. All rights reserved.
Keyword:
SPRAYER BOOM MOTION
DERIVATIVES
EIGENVECTORS
EIGENVALUES
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
8.9
论文数:
1.3W
被引数:
7.5W
机构
暂无机构信息
引用论文
.png){kind=icon}
分享收藏
查看更多内容