| 涡轮榫头/榫槽的结构优化设计 |
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| 引用本文： | 杨敏超,孙苏亚.涡轮榫头/榫槽的结构优化设计[J].航空动力学报,2010,25(8):1876-1882. |
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| 作者姓名： | 杨敏超 孙苏亚 |
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| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京,100191 |
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| 摘 要： | 建立了一个涡轮榫头/榫槽的一体化结构设计优化系统.在此优化系统中,采用榫头/榫槽间隙配合的参数化建模方法.利用ANSYS对结构进行非线性接触分析,基于二次开发实现了目标函数以及其他相关结果的自动提取.采用多岛遗传及二次序列规划算法对优化空间进行寻优,在满足几何约束和强度约束的条件下,优化降低了最大拉应力值和当量应力值.实例分析结果表明,一体化优化设计使涡轮叶片、叶盘性能得到明显的提高,所建系统稳定、高效,具有应用于工程实践的可行性和可靠性.
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| 关 键 词： | 涡轮 榫头 榫槽 参数化建模 结构优化设计 |
| 收稿时间： | 2009/6/25 0:00:00 |
| 修稿时间： | 2009/9/15 0:00:00 |
Structural optimization of turbine tenon/mortise |
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| YANG Min-chao and SUN Su-ya.Structural optimization of turbine tenon/mortise[J].Journal of Aerospace Power,2010,25(8):1876-1882. |
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| Authors: | YANG Min-chao and SUN Su-ya |
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| Institution: | BeiHang University |
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| Abstract: | An integrated optimization design system for turbine tenon/mortise has been set up.In this system,contact clearance was used for parametric modeling of turbine tenon/mortise.Nonlinear contact method was used for analysis of finite element by the strong commercial software of ANSYS which could get objective and other stresses by secondary development of language.Meanwhile,multi-island genetic algorithm and sequential quadratic programming were used for optimization in specified space.As a result,the maximal first principal stress and von mises stress decreased obviously under the condition of meeting the geometry and strength requirements.The system exhibits higher stability,feasibility and efficiency for engineering applications. |
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| Keywords: | turbine tenon mortise parametric modeling structural design optimization |
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