This paper presents a time-dependent concurrent reliability-based design optimization (TDC-RBDO) method integrating the time-variant B-distance index to improve the confidence level of design results with a small amount of experimental data. The time-variant B-distance index is first constructed using the extreme values of responses. The Hist Loop CDF (HLCDF) algorithm is then presented to calculate the time-variant B-distance index with high computational efficiency. The TDC-RBDO framework is provided by integrating the time-variant B-distance index and time-dependent reliability. The extreme value moment method (EVMM) is implemented to speed up the procedure of the TDC-RBDO. The case of a harmonic reducer is employed to elaborate on the proposed method.
Time-Dependent Concurrent Reliability-Based Design Optimization Integrating the Time-Variant B-Distance Index
Contributed by the Design Automation Committee of ASME for publication in the Journal of Mechanical Design. Manuscript received February 1, 2019; final manuscript received May 2, 2019; published online July 19, 2019. Assoc. Editor: Xiaoping Du.
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Wang, Z., Wang, Z., Yu, S., and Cheng, X. (July 19, 2019). "Time-Dependent Concurrent Reliability-Based Design Optimization Integrating the Time-Variant B-Distance Index." ASME. J. Mech. Des. September 2019; 141(9): 091403. https://doi.org/10.1115/1.4043735
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