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| Reliability-based topology optimization of interval parameter structures using equivalent static loads |
| Received:December 06, 2012 Revised:March 14, 2013 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201403003 |
| KeyWord:topology optimization equivalent static loads interval parameters structure non-probabilistic reliability dynamic response |
| Author | Institution |
| 李明 |
东南大学 机械工程学院, 南京 |
| 汤文成 |
东南大学 机械工程学院, 南京 |
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| Abstract: |
| This paper aims at investigating reliability-based topology optimization for dynamic problems with interval parameters,in which equivalent static loads (ESL) method is adopted.The interval static responses from equivalent static loads and interval dynamic responses from dynamic loads are considered to have the same midpoint and deviation.Equivalent static loads are obtained through the Taylor expansion and mapping technique.Based upon the equivalent static loads and solids isotropic materials with penalization (SIMP) model,topology optimization problem is formulated with non-probabilistic reliability constraints.The adjoint method is adopted to derive the reliability sensitivity,and the method of moving asymptotes (MMA) is employed to solve the topology optimization problem.Two examples are provided to demonstrate the effectiveness of the proposed method. |