基于试飞数据的飞机剧烈抖动问题研究  

作　　者：李飞[1] 高文涛[1] 魏斌[1] 

机构地区：[1]中国飞行试验研究院,西安710089

出　　处：《科技创新与应用》2023年第18期84-87,共4页Technology Innovation and Application

摘　　要：抖动作为一种常见的不稳定现象,一旦在飞行中出现,将会严重影响飞机的安全性和舒适性。针对某型飞机在执行高速急蹬舵试飞科目中出现的“剧烈抖动”问题,该文从试飞数据入手,分析抖动产生的原因,并分别从静强度、振动、颤振等专业角度评估抖动可能导致的风险。结果表明,抖动是该型飞机的固有特性,不会引起结构破坏或发生颤振,但长时间持续会引起飞行员不适,给飞行安全带来一定隐患,建议在飞行手册中明确并加以注释说明。As a common unstable phenomenon,once vibration occurs in flight,it will seriously affect the safety and comfort of aircraft.In order to solve the problem of"severe vibration"in the flight test of a certain type of aircraft,starting with the flight test data,the causes of vibration are analyzed in this paper.The risks that may be caused by vibration are evaluated from the professional point of view of static strength,vibration,flutter and so on.The results show that vibration is the inherent characteristic of this type of aircraft,which will not cause structural damage or flutter,but it will cause discomfort to pilots for a long time and bring some hidden dangers to flight safety,which should be clearly defined and annotated in the flight manual.

关 键 词：稳定性 抖动 飞行安全 试飞数据 荷兰滚模态 风险评估 

分 类 号：V417.4[航空宇航科学与技术—航空宇航推进理论与工程]