弹性飞机阵风减缓气动伺服弹性系统鲁棒性研究  

Research on robustness for gust alleviation aeroservoelastic system of elastic aircraft

作　　者：刘伏虎[1] 马晓平[2] 

机构地区：[1]上海飞机设计研究院强度部,上海201210 [2]西北工业大学航空学院,陕西西安710072

出　　处：《飞行力学》2015年第6期514-518,共5页Flight Dynamics

摘　　要：针对阵风减缓气动伺服弹性系统,研究闭环系统性能鲁棒性和稳定鲁棒性。基于系统回差矩阵奇异值理论得到抗阵风扰动灵敏度判据,计算系统对不同阵风扰动的灵敏度以分析系统性能鲁棒性。考虑系统建模的结构刚度和阻尼参数摄动,基于结构奇异值μ理论计算系统的稳定裕度进行系统稳定鲁棒性分析。结果表明,闭环系统具有较好的抗阵风扰动能力和较大的稳定裕度,性能鲁棒性和稳定鲁棒性都较好。The performance robustness and stability robustness of closed-loop system for gust alleviation aeroservoelastic system were studied. Based on singular value of return difference matrix theory,the criteria of gust disturbance sensitivity was determined. The sensitivity gust disturbance was calculated to analyze the system performance robustness. Considering the rigidity and damping parameter of the system model,the system stability margin was calculated to analyze the system stability robustness based on structure singular value μ theory. The results indicated that the closed-loop system has better gust disturbance resistance and biggish stability margin,and the performance robustness and stability robustness are excellent.

关 键 词：阵风减缓 气动伺服弹性 鲁棒性 灵敏度 

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]