FAN Yong-lei, CHEN Guo-guang
(College of Mechantronic Engineering, North University of China, Taiyuan 030051, China)
Abstract： After the trajectory simulation model of rudder control rocket with six degrees of freedom is established by Matlab/Simulink, the simulated targeting of rudder control rocket with rudder angle error and starting control moment error is carried out respectively by means of Monte Carlo method and the distribution of impact points of rudder control rocket is counted from all the successful subsamples. In the case of adding interference errors associated with rudder angle error and starting time error, the simulation analysis of impact point dispersion is done and its lateral and longitudinal correction abilities at different targeting angles are simulated to identify the effects of these factors on characteristics and control precision of the rudder control rocket, which provides the relevant reference for high-precision design of rudder control system.
Key words： rudder control precision; rudder angle error; starting control time error; Monte Carlo method
CLD number： V249 Document code： A
Article ID： 1674-8042（2015）04-0378-06 doi： 10.3969/j.issn.1674-8042.2015.04.013
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蒙特卡洛法在舵机控制精度中的应用
凡永磊， 陈国光
（中北大学 机电工程学院， 山西 太原 030051）
摘要:为研究舵机控制精度， 利用matlab/simulink软件建立六自由度舵控火箭弹弹道仿真模型。 用蒙特卡洛法对舵控火箭弹分别考虑舵偏角误差和起控时刻误差时进行模拟打靶， 统计出成功子样中舵控火箭弹的弹着点分布情况。 在加入相关干扰误差的情况下分别对舵偏角误差和起控时刻误差下的落点散布进行了仿真分析， 计算出不同射角下的横向和纵向修正值。 分析了各自因素舵控火箭弹弹道特性和精度的影响， 为以后舵控系统的高精度设计提供了相关参考。
关键词:舵机控制精度； 舵偏角误差； 起控时刻误差； 蒙特卡洛法
引用格式：FAN Yong-lei, CHEN Guo-guang. Application of Monte Carlo method in rudder control precision. Journal of Measurement Science and Instrumentation, 2015, 6(4)： 378-383. ［doi： 10.3969／j.issn.1674-8042.2015.04.013］
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