摘要
脚操纵机构作为驾驶舱操纵系统的一部分,是重要的人机交互界面,用于控制飞机的航向姿态。以典型飞机脚操纵机构为研究对象,采用参数集中法建立机构的动力学模型,通过时域和频域分析法详细探究摩擦、间隙等非线性因素对输出特性的影响。仿真结果表明:摩擦力能够有效加快振荡收敛,但也会带来相位滞后的问题,影响舵面执行机构对指令的精确响应,因此应保持合适的摩擦力;间隙会引起超调量和延迟时间的增加,影响左驾脚操纵机构和右驾脚操纵机构输出指令的一致性,设计中应尽可能减小间隙。本模型较准确地实现了脚操纵机构动力学特性的分析,可用于飞机脚操纵机构的性能预测和优化设计,具有较大的参考意义。
As a part of the cockpit control system,the foot control mechanism is an important human-computer interface,which is used to control the heading attitude of the aircraft.Taking typical aircraft foot control mechanism as the research object,the dynamic model of the mechanism was established by using the parameter concentration method,and the influence of nonlinear factors such as friction and clearance on the output characteristics was investigated in detail by time domain and frequency domain analysis.The simulation results show that the friction force can effectively accelerate the oscillation convergence,but it also causes the phase lag problem,which affects the precise response of the rudder actuator to the command,so appropriate friction force should be maintained.The gap will cause the increase of overshoot and delay time,and affects the consistency of the output command of the left and right driving foot control mechanism,so the gap should be reduced as much as possible in the design.This model can accurately analyze the dynamic characteristics of the foot control mechanism,and can be used for the performance prediction and optimization design of the aircraft foot control mechanism,and has great reference significance.
作者
师振云
任甲颖
江飞鸿
SHI Zhenyun;REN Jiaying;JIANG Feihong(AVIC The First Aircraft Institute,Xi’an 710089)
出处
《现代制造技术与装备》
2024年第4期186-189,201,共5页
Modern Manufacturing Technology and Equipment
关键词
脚操纵机构
动力学模型
动态特性
摩擦力
间隙
阻尼
foot control mechanism
dynamic model
dynamic characteristics
friction force
gap
damping
