Dynamic modeling and simulation of inertial stabilized platform for aerial remote sensing system
Dynamic modeling and simulation of inertial stabilized platform for aerial remote sensing system
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发表时间：
2011
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通讯作者：
Zhong Maiying
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作者：
Zhong Maiying
针对航空遥感系统惯性稳定平台的力学特性，将飞机的旋转环境传递给平台上的相机，降低了成像质量，基于拉格朗日力学，从分析力学出发，建立了考虑轴承摩擦的惯性稳定平台动力学模型，仿真结果表明，与机架间的耦合力矩相比，基座振动对相机相对于惯性坐标系的运动影响较大，基座振动频率越高，相机相对于惯性坐标系的运动影响越小，轴承摩擦力为动摩擦力，理论分析证明了该理论的正确性，所得结果为惯性稳定平台振动主动控制的进一步研究提供了理论基础。
Due to the mechanical characteristics of inertial stabilized platform for aerial remote sensing system,the aeroplane's rotational environment is transmitted to the camera mounted on the platform,which has degraded the quality of image.Based on Lagrange mechanics and starting from analytical mechanics,a dynamic model of inertial stabilized platform is developed under the condition of considering the bearing friction,with the purpose of analyzing the complex coupling relation.Simulation results show that compared with coupling torque between frames,the base vibration has greater effect on the motion of camera relative to inertial coordinates.And higher frequency of base vibration has less effect on the motion of camera relative to inertial coordinates when the bearing friction is kinetic friction,which has been demonstrated to be valid by the theory in the paper.Results obtained will be a theoretical basis for the further study of the active vibration control of inertial stabilized platform.