Application of Non-Probabilistic Statistical Energy Analysis in Spacecraft’s vibro-acoustic Environment Prediction
- Paper number
IAC-13,C2,P,10.p1,x18042
- Author
Mr. Di Wu, China Academy of Launch Vehicle Technology, China
- Coauthor
Mr. Yue Wang, China
- Coauthor
Mr. Ma Daoyuan, China Academy of Launch Vehicle Technology, China
- Coauthor
Mr. Ye Ma, China
- Coauthor
Dr. Jingqi Cai, China Academy of Launch Vehicle Technology, China
- Year
2013
- Abstract
Statistical energy analysis is widely used in predicting the vibro-acoustic environment of complex structures, especially space aircraft. By integrating the interval analysis, optimization technique and Taylor expansion method, two non-probabilistic, set-theoretical statistical energy analyses are proposed for predicting the dynamical and acoustical response of the complex coupled system with uncertain parameters in high frequency domain. Interval method and convex models are used to describe the uncertainties. For both non-probabilistic methods, less information about the uncertain nature is required than that which is required concerning the probabilistic model. The comparison and the pertinence between the two non-probabilistic methods are made and discussed in this paper. At last, a typical Launch Vehicle structure is made as example to test the two non-probabilistic statistical energy analyses’ feasibility and Monte-Carlo simulation is used to prove the correctness of the methods proposed.
- Abstract document
- Manuscript document
IAC-13,C2,P,10.p1,x18042.pdf (🔒 authorized access only).
To get the manuscript, please contact IAF Secretariat.