华中科技大学学报：自然科学版2012，Vol.40Issue(6)：44-48,5.
小型共轴式直升机纵横向动力学建模与辨识
Flight dynamics model and system identification of longitudinal and lateral channels for a small-scale coaxial helicopter
摘要
Abstract
Using perturbation approach, a linearized flight dynamics model was formulated for the non-linear coaxial helicopter flight control problem. Based on mathematical parametric model of the rotorcraft, the system identification model was obtained by utilizing the input and output data of longitudinal and lateral channel in flight test. The analysis and validation of the above two models in the time domain was given by computer simulation. The stability derivatives, control derivatives and the system eigenvalues were computed for the stability analysis of the helicopter. Results show that the mathematical model can reflect the dynamic characteristics of the longitudinal and lateral channels, based on which the system identification model can be a mathematical model for autonomous flight control system design.关键词
小型共轴式直升机/飞行动力学/理论模型/系统辨识/稳定性Key words
small-scale coaxial helicopter/flight dynamics/theoretical model/system identification/stability引用本文复制引用
聂资,陈铭,李仁府..小型共轴式直升机纵横向动力学建模与辨识[J].华中科技大学学报：自然科学版,2012,40(6):44-48,5.基金项目
广东省部产学研结合项目（2010A090200010）. （）
