랜덤 필드를 고려한 회전 블레이드 진동해석Uncertainty Propagation Analysis of a Rotating Blade considering Random Fields
- Other Titles
- Uncertainty Propagation Analysis of a Rotating Blade considering Random Fields
- Authors
- 최찬규; 유홍희
- Issue Date
- Oct-2015
- Publisher
- 한국소음진동공학회
- Keywords
- Random field(랜덤필드); Uncertainty propagation(불확실성 전파); Rotating blade(회전 블레이드); Polynomial chaos expansion; Stochastic spectral method
- Citation
- 한국소음진동공학회 2015년도 추계학술대회 논문집, pp.599 - 601
- Indexed
- OTHER
- Journal Title
- 한국소음진동공학회 2015년도 추계학술대회 논문집
- Start Page
- 599
- End Page
- 601
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156082
- ISSN
- 1598-2548
- Abstract
- The vibration of a rotating blade are determined by operating conditions and the system parameters such as material properties of the blade and geometry. Among them, the system parameters always have uncertainties because of manufacturing tolerances and material irregularity. Since the uncertainty of the system parameters leads to the uncertainty of transient responses, reliability based design needs to be conducted through the uncertainty propagation analysis of the system. For structural systems such as the rotating beam, the system parameters are random fields since the uncertainty of the parameters is the function of spatial variables. Because of the parameter random fields, the transient responses of the system are also random fields. Therefore, an uncertainty propagation analysis of transient responses considering the parameter random fields needs to be conducted. In this paper, an uncertainty propagation analysis of the rotating blade considering parameter random fields is conducted using the stochastic spectral method.
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