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| The causative agent of invalidation and improvement strategy for evolutionary structural optimization |
| Received:June 05, 2013 Revised:October 07, 2013 |
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| DOI：10.7511/jslx201403005 |
| KeyWord:ESO topology optimization sensitivity analysis singularity element |
| Author | Institution |
| 贺丹 |
沈阳航空航天大学, 辽宁省飞行器复合材料结构分析与仿真重点实验室, 沈阳 |
| 刘书田 |
大连理工大学 工程力学系, 大连 |
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| Abstract: |
| The causative agent of invalidation of evolutionary structural optimization in view of Zhou-Rozvany example was analyzed and an improved strategy was proposed.Initially the cause of invalidation of ESO was found to emanate from the error in sensitivity analysis rather than sparse mesh or error in evaluation strategy.The singularity element was introduced on which the improved strategy was proposed.Eventually the improved ESO method proved that,optimal 0-1 topology result can as well be obtained through sparse mesh. |