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中文摘要：
建立了一个涉及结构、气动、传热、振动、强度和寿命等学科的涡轮冷却叶片多学科设计优化系统,进行了单孔薄壁冷却叶片的多学科设计优化.提出了单孔薄壁冷却叶片的参数化造型方法,叶片叶型采用5次多项式构造,气动与传热为三维耦合分析;叶片体积平均温度与最高温度为优化目标,强度、振动和寿命等学科相关参数为约束,模拟退火与序列二次规划组合算法进行叶片参数空间寻优,在保持冷却气体流量不变的条件下,优化提高了冷却效果,降低了叶片材料的性能要求.
英文摘要：
A involves structure multidisciplinary design optimization system for gas turbine blade, which ,aerodynamic,heat transfer,vibration and service life,etc, has been developed,serving the purpose of multidisciplinary design optimization of single-hole thin wall cooling blade. A parametric modeling method was also proposed for single-hole thin wall cooling blade. The blade surface geometry is defined by five-order polynomials, while 3-D coupling analysis was made for aerodynamic and heat transfer. The average temperature and maximum temperature of blade volume were optimized, with aerodynamic, vibration and service life as the constraints. A combined algorithm of annealing simulation and SOP（Sequential Quadratic Programming） was used to optimize the blade parameters. While the flow rate of cooling air was kept ment on the blade m unchanged, the cooling effect was improved and the performance requirement on the blade materials was reduced.
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