Stochastic modeling and vibration analysis of rotating beams considering geometric random fields
- Authors
- Choi, Chan Kyu; Yoo, Hong Hee
- Issue Date
- Feb-2017
- Publisher
- ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
- Keywords
- Stochastic modeling; Stochastic spectral method; Rotating beam; Random field; Vibration analysis
- Citation
- JOURNAL OF SOUND AND VIBRATION, v.388, pp.105 - 122
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF SOUND AND VIBRATION
- Volume
- 388
- Start Page
- 105
- End Page
- 122
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/21192
- DOI
- 10.1016/j.jsv.2016.10.030
- ISSN
- 0022-460X
- Abstract
- Geometric parameters such as the thickness and width of a beam are random for various reasons including manufacturing tolerance and operation wear. Due to these random parameter properties, the vibration characteristics of the structure are also random. In this paper, we derive equations of motion to conduct stochastic vibration analysis of a rotating beam using the assumed mode method and stochastic spectral method. The accuracy of the proposed method is first verified by comparing analysis results to those obtained with Monte-Carlo simulation (MCS). The efficiency of the proposed method is then compared to that of MCS. Finally, probability densities of various modal and transient response characteristics of rotating beams are obtained with the proposed method. (C) 2016 Elsevier Ltd. All rights reserved.
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