摘要
通过对风力机桨叶承受的载荷计算,得出桨叶绕桨叶轴转动所需的最大力矩。采用数学解析法推导出液压缸推力F是与曲柄长度r、连杆长度a、偏心距e和变桨距初装角φ四重自变量以及变桨距驱动力F1有关的函数,并利用Matlab7.1中的直接搜索工具箱得出最优值,进行优化设计。
According to the load calculation of blade, the required maximum torque of rotational blade is obtained. A mathematic analysis method can be used to deduce the following results： the thrust of hydraulic cylinder is related to crank length, the connecting rod length, the eccentricity, the installation angle, and the variable-pitch driving force. Finally, the optimal values of pitch-controlled actuator are obtained by using the direct search toolbox of Matlab7.1 software.
出处
《机电产品开发与创新》
2010年第4期93-95,共3页
Development & Innovation of Machinery & Electrical Products
基金
宁波市自然科学基金项目(2009A610094)
兰州市科技计划项目(2008-1-16)
关键词
风力机
变桨距
执行机构
优化设计
wind turbine
variable-pitch
actuator
optimal design
