다봉분포를 고려한 신뢰성 기반 최적설계Reliability-based Design Optimization Considering Multimodal Distribution
- Other Titles
- Reliability-based Design Optimization Considering Multimodal Distribution
- Authors
- 박상현; 임우철; 장준용; 이태희
- Issue Date
- Nov-2014
- Publisher
- 대한기계학회
- Keywords
- Multimodal distribution(다봉분포); Reliability-based Design Optimization(신뢰성기반최적설계); Maximum Entropy Principle(최대엔트로피법칙); Maximum Likelihood Estimation(최우량추정); Akaike Information Criterion(아카이케정보척도)
- Citation
- 대한기계학회 2014년도 추계학술대회, pp.992 - 993
- Indexed
- OTHER
- Journal Title
- 대한기계학회 2014년도 추계학술대회
- Start Page
- 992
- End Page
- 993
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/158589
- Abstract
- In recent studies of reliability analysis methods, estimation of reliability for unimodal and bimodal distribution has been done separately. However, in reliability-based design optimization, the number of output modes depends on input modes, design point, function nonlinearity, and so on. Therefore, in this study, we define a probability density function (PDF) in exponential polynomial form for multimodal distribution. Parameters for the multimodal PDF can be estimated by maximum likelihood estimation and then effective polynomial terms can be determined by Akaike information criterion. Finally, distribution of each design point is estimated as exponential polynomial form and the reliability is calculated by integration of the PDF.
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