基于多目标优化的透平叶栅变工况设计方法

宋立明; 李军; 丰镇平; 罗常

基于多目标优化的透平叶栅变工况设计方法

西安交通大学叶轮机械研究所, 西安 710049

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出版历程
- 收稿日期: 2006-09-11
- 修回日期: 2006-12-04
- 刊出日期: 2007-09-28

An off-design method of turbine blade based on multiobjective optimization

Institute of Turbomachinery, Xi'an Jiaotong University, Xi'an 710049, China

摘要

摘要: 将基于多目标优化方法的变工况设计思想引入到透平叶栅气动优化设计领域, 以能量法为基础, 提出了二维叶栅型线光顺方法和叶栅自动设计参数化方法, 在此基础上进一步结合并行多目标差分进化算法和CFD技术, 发展了叶栅变工况自动气动优化设计方法.对一个透平叶栅选择一亚声速工况和一跨声速工况进行了变工况自动气动优化设计研究.设计结果表明该设计方法能一次性获得适用于不同工况范围的多个气动性能优良的叶栅, 具有优秀的设计能力和工程实用价值.
- 航空、航天推进系统 /
- 透平叶栅 /
- 能量法 /
- 多目标 /
- 气动优化 /
- 变工况
Abstract: The off-design concept based on multiobjective optimization was introduced into turbomachinery cascades optimization.And,the energy optimization method was applied to develop a 2D blade fairing method and a new automatic blade design parameterization method.By combining parallel multiobjective differential evolution algorithm and CFD technique,an off-design aerodynamic optimization method was developed.Thus,the off-design aerodynamic optimization of a turbine blade was studied under the subsonic condition and transonic condition.The result indicates that this design method can help to get several blades profiles of good aerodynamic performance suitable for different working condition,presenting strong design capability and higher engineering practicability.
- aerospace propulsion system /
- turbine blade /
- energy optimization method /
- multiobjective /
- aerodynamic optimization /
- off-design

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参考文献(11)

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