Estimation of Maximum Interface Force by the Measurement Frequency Response Functions(Mechanical Systems)

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  • 計測伝達関数を用いた最大インタフェースフォース計算法の提案(機械力学,計測,自動制御)
  • 計測伝達関数を用いた最大インタフェースフォース計算法の提案
  • ケイソク デンタツ カンスウ オ モチイタ サイダイ インタフェース フォース ケイサンホウ ノ テイアン

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Abstract

Vibration test is a method to verify the design of space hardware, which will endure the flight vibration environment. The problem of vibration test is over testing in comparison to the flight environment due to the mounting impedance differences in flight versus test. Force limited vibration test is the one of the popular approach to prevent the unnecessary over testing of space hardware. In this study, we propose a method to estimate the maximum interface force, which is the limit value of vibration test, of flight configuration based on the measurement FRF (Frequency Response Function) of the test hardware by simple experiment, such as impact hammer excitation. The theoretical background is described as well as discussion of experimental process, deviation sources depending on excitation location, are stated in this report.

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