Dynamic characteristics of a damaged plate
作者： Usik Lee , Namin Kim , Oh-Yang Kwon
DOI: 10.1007/BF03185682
关键词:
摘要: It is very important to well understand the dynamic characteristics of damaged structures successfully develop or choose a most appropriate structural damage identification method (SDIM) as means non-destructive testing. In this paper, equation motion for plates derived by introducing distribution function, which may characterize effective state damages. found that damages induce coupling between modal coordinates. The effects on vibration plate depending their locations, sizes, and magnitudes are numerically investigated in systematic way. numerical investigations also given damage-induced changes minimum number natural modes required predict sufficiently accurate plates.
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