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.
出处
《航空动力学报》
EI
CAS
CSCD
北大核心
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)
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
aerospace propulsion system
flapping-wing crank-and-rocker mechanism
multi-objective method
movement symmetry micro air vehicles （FMAV）
optimal design
Hooke-Jeeves
作者简介
周凯（1983-），男，河南夏邑人，硕士生，主要从事机械动力学仿真与机械优化设计等．
