噪声与振动控制2018，Vol.38Issue(1)：26-31,113,7.DOI:10.3969/j.issn.1006-1355.2018.01.005
基于区间摄动法的不确定结构高频动响应预示
High-frequency Response Prediction of Uncertainty Structures based on Interval Perturbation Approach
摘要
Abstract
Statistical energy analysis(SEA)is an effective method to deal with the high-frequency noise and vibration problem in many fields such as aeronautics,vehicles,ships and nuclear energy.In this paper,the uncertainty of the damping loss factor and coupling loss factor of SEA is considered and the interval variables are utilized to represent the damping loss factors and coupling loss factors with measurement errors.The high-frequency dynamic response prediction method of the uncertainty structures is proposed by using the interval perturbation method. Then, the computation method of the total energy intervals of the subsystems is provided.The effect level of the measurement errors of parameters on the predicted steady-state response is revealed. The rationality and effectiveness of this theory is validated by the experiment on two composite plates.关键词
振动与波/统计能量分析/高频振动/区间分析/不确定性/损耗因子Key words
vibration and wave/statistical energy analysis (SEA)/high-frequency vibration/interval analysis/uncertainty/loss factor分类
数理科学引用本文复制引用
宋海洋,张文正,张丰收,吕稀,冯志鹏..基于区间摄动法的不确定结构高频动响应预示[J].噪声与振动控制,2018,38(1):26-31,113,7.基金项目
国家自然科学基金资助项目(11372084) （11372084）
