Abstract
A most probable failure point update method is proposed to obtain an accurate reliability-based design of electromagnetic devices or systems in the presence of uncertainties. The first-order reliability method has been recently adopted to solve electromagnetic design problems. However, its result could be very erroneous especially for nonlinear or multi-dimensional performance functions. To overcome the drawback, a three-step computational procedure is additionally executed to ensure prescribed design feasibility at an optimum obtained from the conventional first-order reliability method: failure rate calculation, reliability index update, and most probable point update. A mathematical example and a blushless DC motor design problem are provided to demonstrate numerical accuracy of the proposed method by comparison with the conventional method.
Original language | English |
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Pages (from-to) | 408-412 |
Number of pages | 5 |
Journal | Journal of Magnetics |
Volume | 24 |
Issue number | 3 |
DOIs | |
State | Published - 2019 |
Keywords
- Electromagnetics
- Optimization
- Reliability theory
- Robustness