摘要
以常规单旋翼带尾桨直升机为对象，讨论均匀与非均匀入流模型对直升机飞行数值仿真的影响．以ＰｉｔｔＰｅｔｅｒｓ 的动力入流模型为基础，讨论均匀与非均匀入流模型对直升机配平的影响，并分别采用非均匀静态入流、均匀与非均匀动力入流模型，分析直升机在低速、中速和高速前飞时对驾驶员操纵输入动态响应数值仿真的精度及影响程度，为不同目的飞行数值仿真中入流模型的选取提供有益的参考．
For the current helicopter of single main rotor with tail rotor, the effect of inflow models with different characteristics on helicopter trim and digital simulation was discussed. Based on Pitt/Peters' first order dynamics nonuniform inflow model, the effect of uniform and nonuniform inflow models of main rotor on helicopter trim, and the effect of uniform and nonuniform dynamics inflow models of main rotor on helicopter dynamics response to pilot control input at different forward flight speed states, were analyzed, which could provide useful reference to chose the proper inflow model of main rotor for different flight digital simulation. The sample of UH 60A Black Hawk helicopter was used for the calculation and analysis.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1999年第5期539-542,共4页
Journal of Beijing University of Aeronautics and Astronautics
基金
航空高等院校自选科研课题
关键词
直升机
飞行力学
入流动力学
动态响应
配平
helicopters
flight mechanics
mathematical models
digital simulation
inflow dynamics
non linear system
