Professor Ang至校演講

4/22(五)9:30~10:30
University of California at Irvine的Professor Ang將至本校E2-102進行演講，演講題目為:
Moment Methods for Complex System Reliability with Correlated Random Vectors   歡迎蒞臨

摘要如下:
The analysis of reliability of complex engineering systems remains a challenge in the field of reliability. It will be even more difficult if correlated random vectors are involved, which is generally the case as practical engineering systems invariably contain parameters that are mutually correlated. A new method for transforming correlated distributions, involving the Nataf transformation, is proposed that avoids the solution of integral equations; the method is based on the Taylor series expansion of the probability density function (PDF) of a bivariate normal distribution resulting in an explicit polynomial equation of the equivalent correlation coefficients. The required numerical results can be obtained efficiently and accurately.
        The proposed method for transformation of correlated random vectors is useful for developing a method for system reliability including complex systems with correlated random vectors. Based on the complete system failure process (originally defined as the development process of nonlinearity) and the fourth-moment method, the analysis of system reliability for elastic-plastic material avoids the identification of the potential failure modes of the system and their mutual correlations which are required in the traditional methods. Finally, three examples are presented -- one to illustrate the potential of the new method for transformation of correlated random vectors, and two examples to illustrate the application of the proposed more effective method for system reliability.


國立臺灣科技大學營建工程系辦公室  敬啟
National Taiwan University of Science and Technology
Department of Civil and Construction Engineering