基于内力法的伺服弹性快速计算方法  

A Fast Calculation Method of Servo Elasticity Based on Internal Force

作　　者：李哲 崔高伟[1] 王鹏辉[1] 谷迎松[2] 洪良友[1] 孙颖 LI Zhe;CUI Gao-wei;WANG Peng-hui;GU Ying-song;HONG Liang-you;SUN Ying(Beijing Institute of Structure and Environment Engineering,Beijing 100076,China;School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]北京强度环境研究所,北京100076 [2]西北工业大学航空学院,西安710072

出　　处：《强度与环境》2021年第3期16-21,共6页Structure & Environment Engineering

基　　金：XX飞行器气动/热/结构/控制系统祸合振动抑制技术(41410040101)。

摘　　要：对于带有飞行控制系统的飞行器,当其控制系统与结构弹性变形发生耦合时,会引起伺服弹性问题,直接影响飞行安全与品质。近年来,带有翼舵的飞行器凸显了结构柔性,激光和光纤类传感器提高了控制带宽,使得伺服弹性问题日益突出,给飞行器控制系统设计工作带来了挑战。鉴于此,采用分层求解,逐级验证的思路,建立了以内力法驱动的伺服弹性分析模型,并通过了地面伺服弹性试验结果的验证。相比ZAERO伺服弹性频域分析方法,该方法具有相同的精度,并可将伺服弹性计算效率提高75%。For the aircraft with flight control system,when the control system is coupled with structural elasticity,that will cause servo elasticity problems,directly affecting flight safety and quality.In recent years,the flight control system design has been brought challenges by serious servo elasticity problem that structure flexibility is highlighted by heterosexual aircraft,control bandwidth is increased by laser and optical fiber sensors.In view of that,using the idea of layered solution and step-by-step verification,a servo elasticity analysis model driven by the internal force method is established,which passed the verification of ground servo elasticity test.Compared with ZAERO servo elasticity frequency domain method,the method has the same accuracy and can increase the calculation efficiency by 75%.

关 键 词：伺服弹性模型 内力法 伺服弹性试验 频域方法 计算效率 

分 类 号：V215.3[航空宇航科学与技术—航空宇航推进理论与工程]