中文摘要：

本文建立了轴流式压气机叶片气动优化设计系统，选择NURBS作为二维叶型和三维弯扭联合造型的主要方法，采用组合优化策略，对压气机全工况性能进行优化。优化过程采用了变复杂度模型，结合并行计算，大大减少了优化设计周期。优化后，全工况范围内效率得到了提升，同时流量范围有所增大，设计工况点效率提高O．7％，前三排叶片的喘振裕度比优化前提高了7．9％，扩大了稳定工作范围。

英文摘要：

Establish an aerodynamic optimization system based on iSIGHT. The 2-dimensional profiled surface and the stacking line of compressor blades were parameterized by NURBS. A combined optimization of the compressor blades was done based on numerical overall performance calculation. After the optimization, efficiency of the design condition has increased by 0.7%, and the stall margin has increased by 7.9%.