本文结合哈汽厂一米长叶片的设计,论述了长叶片设计中的几个关键问题及其解决途径,从概念和原理上分析了各种方案的优缺点。着重讨论了三元流效应对长叶片设计的影响,控制流型的方法,强度振动设计,气动设计与强度设计的关系,刚性叶片和柔性叶片的设计特点。 Based on the design of one-meter-long blade in Ha-steam Factory, this paper discusses several key problems in long-blade design and their solutions, and analyzes the advantages and disadvantages of various schemes from concept and principle. The influence of the three-element flow on the long blade design, the method of controlling the flow pattern, the design of the strength vibration, the relationship between the aerodynamic design and the strength design, the design characteristics of the rigid blade and the flexible blade are mainly discussed.