Expansion of transient operating data

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• 作者：Christopher Chipman ; Peter Avitabile ; ^{Peter_Avitabile@uml.edu}
• 关键词：Expansion ; Transient data ; Orthogonal projection vectors
• 刊名：Mechanical Systems and Signal Processing
• 出版年：2012
• 期刊代码：189_08883270
• 类别：et
• 出版时间：August, 2012
• 卷：31
• 期：Complete
• 页码：1-12
• 文件大小：2013 K

摘要

Real time operating data is very important to understand actual system response. Unfortunately, the amount of physical data points typically collected is very small and often interpretation of the data is difficult. Expansion techniques have been developed using traditional experimental modal data to augment this limited set of data. This expansion process allows for a much improved description of the real time operating response.

This paper presents the results from several different structures to show the robustness of the technique. Comparisons are made to a more complete set of measured data to validate the approach. Both analytical simulations and actual experimental data are used to illustrate the usefulness of the technique.