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IntroductionTheproblemwasfirstencounteredduringflighttestofaCH_53EdevelopedbySikorsky[1].Astheaircraftwasincreasingitsairspeedfrom 2 77km·h- 1,aphenomenonofexcessiveoscillationswasobserved .Itwasrealizedthattherewasaself_excitedoscillationofcoupledfirstcolle… 相似文献
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IntroductionThephysicsparameteridentificationproblemsarefrequentlyencounteredinthefieldsofaviation,space,mechanismandcivilengineering .Forexample ,duetothecomplexityofmaterialpropertiesincivilengineering ,thephysicsparametersusuallyareidentifiedbytestdat… 相似文献
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