基于柔顺机构的风力机叶片变弯度前缘结构设计  

Structure Design of the Variable-camber Leading Edge of Wind Turbine Blade Based on Compliant Mechanisms

作　　者：陈子雄 季宏丽[1] 聂瑞 裘进浩[1] CHEN Zi-xiong;JI Hong-li;NIE Rui;QIU Jin-hao(College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan 618307, China)

机构地区：[1]南京航空航天大学航空学院,南京210016 [2]中国民用航空飞行学院航空工程学院,广汉618307

出　　处：《科学技术与工程》2020年第22期9003-9010,共8页Science Technology and Engineering

基　　金：国家重点基础研究发展计划(973计划)(2015CB057501);国家自然科学基金(11372133);中央高校基本科研业务费专项资金(NE2015101,NP2016201);江苏高校优势学科建设工程资助项目(PARD)。

摘　　要：为实现风力发电机叶片的自适应变形及结构轻量化,叶片前缘采用柔顺机构设计。以实际位移与目标位移差值及最大应力为约束,以材料用量最小为目标,采用变密度法对柔顺机构进行拓扑优化设计。以双程形状记忆合金丝作为驱动器驱动前缘柔顺机构自适应变形。研究结果验证了柔顺机构及拓扑优化结果的可靠性,为大型风力发电机叶片柔顺机构的设计提供了借鉴;同时也验证了双程形状记忆合金丝作为智能驱动器具有工程发展应用的前景。For achieving adaptive deformation and lightweight for wind turbine blade,the leading edge of the blade was designed with a compliant mechanism.Aiming to minimize the amount of materials,the departures between the actual and target displacements and the maximum stress were taken as restraints,and the variable density method was used to topologically optimize the compliant mechanism.A two-way shape memory alloy wire was used to drive the optimized leading edge to deform adaptively.The research results verify the reliability of the compliant mechanism and topology optimization,and provide reference for the compliant mechanism design and topology optimization of large wind turbine blades.Meanwhile,it has verified that the two-way shape memory alloy wire is a promising intelligent driver for engineering applications.

关 键 词：风力发电机叶片 自适应 柔顺机构 拓扑优化 双程形状记忆合金 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]