Modeling and simulation of imbalance disturbance for inertially stabilized platform

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Journal of Vibration and Shock ›› 2016, Vol. 35 ›› Issue (8) : 138-142.

LI Ming, LI Jie, ZHANG Yanshun

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Abstract

Ideally, the centroid of inertially stabilized platform is located in the axis of rotation, but in fact, the centroid of inertially stabilized platform will deviate the axis of rotation because of the limit of processing technology. What's more, under the function of base angle movement and friction, inertially stabilized platform will produce deflecting angle. And the change of deflecting angle will cause change of the arm of force in the horizontal and vertical direction, in this case, imbalanced disturbance comes into being. In order to analyze the influence of imbalance disturbance, it takes the simplified dynamical model of inertially stabilized platform as basis, and introduces the idea of establishing unbalanced disturbance via analyzing the changing rule of deflecting angle and the arm of force. Based on the unbalanced disturbance, it analyses the effect of unbalanced disturbance towards inertially stabilized platform from quantitative simulation. The results show that the output angle of inertially stabilized platform in stabilized state exceeds the stabilized demand under the function of unbalanced disturbance, and stabilized performance of stabilized platform is affected heavily.

Key words

inertially stabilized platform / friction / dynamical model / unbalance disturbance / modeling

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LI Ming, LI Jie, ZHANG Yanshun. Modeling and simulation of imbalance disturbance for inertially stabilized platform[J]. Journal of Vibration and Shock, 2016, 35(8): 138-142

References

[1] Hilkert J M. Inertially stabilized platform technology: concepts and principles[J]. IEEE Control Systems Magazine, 2008(12): 26-46.
[2] Masten M K. Inertially stabilized platform for optical imaging system: Tracking dynamic targets with mobile sensors[J]. IEEE Systems Magazine, 2008(12): 47-64.
[3] 房建成, 戚自辉, 钟麦英. 航空遥感用三轴遥感平台不平衡力矩前馈补偿方法[J]. 中国惯性技术学报, 2010, 18(1): 38-43.
FANG Jian-cheng,QI Zi-hui,ZHONG Mai-ying. Feedforward compensation method for three axes inertially stabilized platform imbalance torque[J]. Journal of Chinese Inertial Technology,2010, 18(1): 38-43.
[4] 朱华征, 范大鹏, 张文博等. 质量不平衡力矩对导引头伺服机构性能影响分析[J]. 红外与激光工程, 2009, 38(5): 767-772.
ZHU Hua-zheng, FAN Da-peng, ZHANG Wen-bo, et al. Influence analysis of the mass imbalance torque on the performance of seeker servo mechanism[J]. Infrared and Laser Engineering, 2009,38(5): 767-772.
[5] 王祖温, 李延斌, 包钢. 3自由度气浮台力学性能研究-关于自重作用下不平衡力矩的分析[J]. 机械工程学报, 2006,42(4): 179-184.
WANG Zu-wen, LI Yan-bin, BAO Gang. Study on the mechanics property of three degrees of freedom air-bearing testbed-analysis on unbalance torque acted on gravity[J]. CHINESE JOURNAL OF MECHANICAL ENGINEERING, 2006,42(4): 179-184.
[6] 尹秋岩，赵健康，戴金海. 反作用飞轮内干扰抑制方法研究[J]. 电子与信息学报，2007,29（6）：1521-1524.
Yin Qiu-yan, Zhao Jian-kang, Dai Jin-hai. A method of control inner disturb to the reaction wheel[J]. Journal of Electronics & Information Technology, 2007,29（6）：1521-1524.
[7] 杨秀彬，常琳，金光. 单框架控制力矩陀螺转子动不平衡对遥感卫星成像的影响[J]，中国光学，2012,5（4）：358-365.
Yang Xiu-bin, Chang Bin, Jin Guang. Influence of dynamic imbalance of SGCMG rotor on remote sensing satellite imaging[J]. Chinese Optics, 012,5（4）：358-365.
[8] LI B.. Nonlinear Induced Disturbance Rejection in Inertial Stabilization System[J]. IEEE Control Systems Technology, 1998, 6(3): 421-427.
[9] 阴蕊, 房建成, 钟麦英. 航空遥感用三轴遥感平台动力学建模与仿真[J]. 中国惯性技术学报, 2011, 19(6): 676-680.
YIN Rui, FANG Jian-cheng, ZHONG Mai-ying. Dynamic modeling and simulation of remote sensing platform for aerial remote sensing system[J]. Journal of Chinese Inertial Technology, 2011, 19(6): 676-680.
[10] 朱如意，丁祝顺，蒋鸿翔. 遥感平台摩擦力矩的非线性校正补偿方法[J]. 导航与控制, 2011,10(4): 21-25.
Zhu Ru-yi, Ding Zhu-shun, Jiang Hong-xiang. Method of friction compensation based on nonlinear revision in remote sensing platforms[J]. NAVIGATION AND CONTROL, 2011,10(3):21-25.