| 透平级通流部分全设计变量多目标优化设计 |
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| 引用本文： | 陈志鹏,袁新.透平级通流部分全设计变量多目标优化设计[J].航空动力学报,2009,24(5):1108-1113. |
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| 作者姓名： | 陈志鹏 袁新 |
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| 作者单位： | 清华大学 热科学与动力工程教育部重点实验室, 北京 100084 |
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| 基金项目： | 国家自然科学基金(50676043);;国家重点基础研究发展计划(2007CB210108) |
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| 摘 要： | 采用优化设计方法优化某轴流透平级通流部分造型,利用基于非均匀有理B样条(NURBS)曲线技术的参数化造型方法提取包括叶片和端壁造型的全设计变量,选取级效率最大化和动叶根部最高温度最小化进行多目标优化设计.引入基于并行子空间的组合优化策略,缩短了优化设计周期.优化设计后的透平级效率提高了0.664%,动叶根部最高温度下降达透平级内温度变化范围的1.5%.该工作表明该优化设计方法在透平级设计上具有重大应用价值.
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| 关 键 词： | 透平级 参数化建模 多目标优化 设计子空间 组合优化策略 |
| 收稿时间： | 2008/5/19 0:00:00 |
| 修稿时间： | 8/7/2008 12:00:00 AM |
Multi-objective optimization design of turbine stage with consideration of variables |
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| CHEN Zhi-peng and YUAN Xin.Multi-objective optimization design of turbine stage with consideration of variables[J].Journal of Aerospace Power,2009,24(5):1108-1113. |
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| Authors: | CHEN Zhi-peng and YUAN Xin |
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| Institution: | Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China |
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| Abstract: | Optimization design method was used to optimize the flow-path modeling of one turbine stage.The parametric modeling method based on non-uniform rational B-spline(NURBS) technology was used for turbine stage flow-path parametric modeling.The maximum isentropic efficiency and minimum temperature at rotor hub of the leading edge were selected for multi-objective optimization design.Combinatorial optimization strategy based on parallel sub space was introduced for the large-scale and multi-objective optimizatio... |
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| Keywords: | turbine stage parametric modeling multi-objective optimization sub space combinatorial optimization strategy |
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