Time-Dependent Reliability and Hydrokinetic Energy Systems Abstract

时间:2012-01-04来源:机械工程与自动化学作者:浏览:940设置

报告人:密苏里科技大学杜小平博士.副教授

题目:Time-Dependent Reliability and Hydrokinetic Energy Systems

Abstract

The responses of many engineering systems vary over time. It is desirable to account for their reliability with time-dependent reliability methodologies. These methodologies, however, are much than complicated than the traditional static reliability methodologies. There are two major challenges. First, time-dependent reliability analysis is computationally intensive and requires a large number of deterministic analyses. Second, the accuracy of the current time-dependent reliability methodologies are relatively low and may result in over-conservative designs. In this talk, a new time-dependent reliability analysis method is presented. The method improves the accuracy of the popular upcrossing rate method by using joint upcrossing rates.

As a clean source of energy, hydrokinetic systems produce renewable electricity by harnessing the kinetic energy of a body of water. The performance of a hydrokinetic turbine is time dependent, and its reliability is critical for its production and cost of energy. The new time-dependent reliability methodology has been applied to the analysis and design of such a system. The results are promising. New research directions are derived from the results.


主讲人简介

Dr. Xiaoping Du is an Associate Professor in Mechanical Engineering at the Missouri University of Science and Technology. He has been working in engineering design under uncertainty for about 20 years. As a mechanical engineer, design engineer, researcher, and educator, he participated in many projects in design optimization, robust design, and reliability-based design for petroleum and automotive industries. He served as PI and Co-PI for research projects sponsored by the National Science Foundation, Office of Naval Research, other government agencies, and industry. He has authored approximately100 publications in the form of journal articles, conference papers, and book chapters. His research results have been highly cited and have been adopted by companies and commercial design software.



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