Finite element model improvements using test data

被引：0

作者：

Muralidhar, K.V. ^{[1
]}

Joseph, Thomas K. ^{[1
]}

Narayana, K. Badari ^{[1
]}

Rao, M. Sambasiva ^{[1
]}

机构：

[1] Structures Group, ISRO Satellite Centre, Bangalore 560 017, India

来源：

Journal of Spacecraft Technology | 2002年 / 12卷 / 02期

关键词：

Environmental testing - Finite element method - Frequency response - Mathematical models - Modal analysis - Spacecraft - Vibration measurement;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This article presents how a dependable finite element model is arrived at using personal judgement and experience from the test data. The data used here is taken from the dynamic tests and the analysis results of flight model of a spacecraft. Comparison of natural frequencies and responses between the results obtained from the analysis and test data are used as basis for finite element model improvement. This article brings out how, a simple modeling deficiency of a component, results in global behavioral changes of the overall system. It also illustrates how to incorporate corresponding corrections in the mathematical model.

引用

页码：14 / 24

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