Lateral Dynamic Characteristics Analysis of Elastic Missile for Controller Design
In order to design the controller for cruise missile which will vibrate in flight,the lateral dynamic characteristics of the missile is analyzed in this paper.The intrinsic mode and aerodynamic parameters are calculated by using the software Nastran and Fluent.The additional unsteady aerodynamics caused by vibration is studied through simplified theory; the lateral rigid perturbation motion equations is established according to the linear theory respectively.The dynamic response of elastic vibration can be obtained after the additional unsteady aerodynamics loads are substituted to the perturbation motion equations as disturbance input.The results can provide initial data for stability analysis,precision analysis,guidance and control system design.The output response shows that the sideslip angle variation caused by elastic vibration will be very small,but the variation of bank angle will be significant,this result is matched with the experiment phenomenon.All the attitude angles are also vibrating with micro amplitude and high frequency,the adverse effects of vibration must be eliminated by the wav of filtering or the other methods.
elastic missile controller unsteady aerodynamics lateral dynamic characteristics
XU Zhaoqing Pei Hailong
College of Automation Science and Engineering South China University of Technology Guangzhou, China
国际会议
重庆
英文
947-951
2015-12-19（万方平台首次上网日期，不代表论文的发表时间）