摘要
基于振动的功率流理论和一般概率摄动法,研究了多源激励浮筏隔振系统频域内振动传递路径的功率流传递概率的度量问题,提出了频域内振动传递路径系统的功率流传递度的新概念和方法,在考虑工程中的不确定因素以后,在频域内清晰地描述了振动传递路径系统的功率流传递度.
Based on the theory of powerflow and the generalized probabilistic perturbation method,this paper studied the path powerflow transfer probability of multiple sources exciting floating raft system in frequency range;and,the new concept and effective approach of path powerflow transfer ratio for vibration transfer path systems in frequency range were presented.The powerflow transfer ratio among multiple and/or multi-dimensional paths was described correctly and expressly in frequency range when uncertain fact...
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
2009年第5期1177-1181,共5页
Journal of Aerospace Power
基金
国家高技术研究发展计划(2007AA04Z442)
关键词
浮筏
功率流
传递路径
传递概率
传递度
floating raft
powerflow
transfer path
transfer probability
transfer ratio