期刊
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
卷 123, 期 -, 页码 264-297出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ymssp.2019.01.018
关键词
Proper orthogonal decomposition; Proper orthogonal modes; Order reduction; Parametric dynamic system; Classification; High-dimensional system; Nonlinear dynamics; Mechanical systems
资金
- MILT Key Laboratory of Dynamics and Control of Complex Systems in the Northwestern Polytechnical University
- National Basic Research Program (973 Program) of China [2015CB057400]
- National Natural Science Foundation of China [11802235, 11272257, 11602070, 11602108]
- Natural Science Foundation of Jiangsu Province [BK20160820]
- China Postdoctoral Science Foundation [2016M590277]
This paper presents a review of proper orthogonal decomposition (POD) methods for order reduction in a variety of research areas. The historical development and basic mathematical formulation of the POD method are introduced. POD for parametric dynamic systems is introduced, and a physical interpretation of the POD approach based on the proper orthogonal modes (POMs) is presented. The equivalence between POD and three other order reduction methods is discussed: the first alternative method is singular value decomposition (SVD), the second is principal component analysis (PCA), and the third is Karhunen-Loeve decomposition (KLD). A classification of POD methods is described based on the parameter adaptation and sampling. Actual applications of POD methods for order reduction in engineering systems are illustrated. Finally, outlooks on the use of POD methods in high-dimensional nonlinear dynamic systems are presented in more detail to provide direct guidance for researchers in various areas of engineering. (C) 2019 Elsevier Ltd. All rights reserved.
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