电传直升机驾驶员辅助振荡特性研究  

Research on the characteristics of pilot-assisted oscillation of fly-by-wire helicopter

作　　者：孟晓伟 王鹤[1] 赵敬超[1] 张宏林[1] MENG Xiaowei;WANG He;ZHAO Jingchao;ZHANG Honglin(Chinese Flight Test Establishment,Xi'an 710089,China)

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《飞行力学》2022年第6期72-76,82,共6页Flight Dynamics

摘　　要：为研究电传直升机驾驶员辅助振荡特性,建立了一种基于模型的驾驶员辅助振荡特性评估方法。以某型直升机作为研究对象,通过飞行试验数据对比分析,证明了所提方法的有效性。在此基础上,采用该方法开展了驾驶员辅助振荡参数敏感性分析,得到了一些对降低电传直升机驾驶员辅助振荡有指导意义的结果。研究结果表明:电传直升机高度通道的驾驶员辅助振荡特性与旋翼设计参数、操纵/响应系统参数以及驾驶员/总距杆动力学参数密切相关,通过优化相关参数,可以降低直升机的振荡倾向。In order to study the pilot-assisted oscillation(PAO) characteristics of fly-by-wire helicopters, a model-based evaluation method of PAO characteristics was established. Taking a certain type of helicopter as the research object, through the comparative analysis of flight test data, the effectiveness of the method was proved. On this basis, this method was used to focus on the parameter sensitivity analysis, and some instructive results were obtained to reduce the PAO of the fly-by-wire helicopter. The research results show that the PAO characteristics of the fly-by-wire helicopter height channel is closely related to the design parameters of the rotor, the control/response system parameters and the pilot/collective lever dynamics parameters, and by optimizing the relevant parameters, the oscillation tendency of the helicopter can be reduced.

关 键 词：驾驶员辅助振荡 参数敏感性 飞行试验 电传直升机 

分 类 号：V217.33[航空宇航科学与技术—航空宇航推进理论与工程] V275.1