单曲柄双摇杆扑翼驱动机构的优化设计  

Optimization design for single-crank and double-rocker kind of driving mechanism of FMAV

作　　者：周凯[1] 方宗德[1] 曹雪梅[1] 张明伟[1] 

机构地区：[1]西北工业大学机电工程学院,西安710072

出　　处：《航空动力学报》2008年第1期184-188,共5页Journal of Aerospace Power

基　　金：国家自然科学基金(50575183);博士点专项科研基金(20050699022)

摘　　要：微扑翼飞行器在试飞过程中时常发生向左或者向右倾斜栽落的现象,这是由于左右扑翼动作的不完全对称性引起的.由此建立了驱动机构在一个运动周期内左右扑翼角之差和角速度之差的数学模型,并在机械学、仿生学等约束条件下利用模式搜索法对目标函数进行了优化设计.优化前后的参数对比分析和试飞试验均表明:该优化显著增强了微扑翼飞行器的运动对称性.Flapping-wing micro air vehicles （FMAV） often tilt toward the left or the right and fall off in the course of flight, and this is mainly caused by the incomplete symmetry of the wings＇ movement. Models of the margins of the flapping-angle and angular speed between the left wing and the right wing were established; and an optimization design for the objective function was carried out by using Hooke-Jeeves method under restraint conditions of mechanics, bionics and aerodynamics. Both comparative analysis of parameters before and after optimization and flight test indicate that the optimization can remarkably improve movement symmetry of flapping-wing micro air vehicles.

关 键 词：航空 航天推进系统 微扑翼飞行器 曲柄摇杆机构 多目标优化 模式搜索法 运动对称性 

分 类 号：V276[航空宇航科学与技术—飞行器设计] TH123[机械工程—机械设计及理论]