用定向管的振动估算火箭弹的初始扰动  

Estimation of Initial Disturbances of Rockets with Vibrations of the Directional Tubes

作　　者：陈阵[1] 毕世华[1] 高波[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《北京理工大学学报》2004年第1期23-26,共4页Transactions of Beijing Institute of Technology

基　　金：教育部高等学校博士学科点专项科研基金资助课题(2001)

摘　　要：以火箭弹/发射装置系统为研究对象,分析了火箭弹初始扰动的影响因素,采用Newton-Euler方法建立了半约束期火箭弹的运动微分方程.给出了用定向管的振动数据估算火箭弹初始扰动的方法,并与采用动力学仿真软件ADAMS的仿真结果进行了对比.结果表明:在火箭弹与发射管间隙较小的情况下,本方法的计算结果与ADAMS的仿真结果相差很小;而在火箭弹与发射管间隙较大时,本方法的计算结果与ADAMS的仿真结果相差较大,证明了该方法在弹管间隙较小的情况下计算结果具有一定的准确性.Within the range of a rocket/launcher system, the influencing factors on the initial disturbances of rockets are analyzed. Differential equations of motion for the rocket during the semi-constraint period are constructed using the Newton-Euler method. Estimation of initial disturbances of the rockets with vibrations of the directional tubes are given. The results of estimation are compared with the simulation results applying the dynamics simulation software ADAMS. There exist only minor differences between the results by the proposed method and those from the software ADAMS, when the clearance between the rocket and the directional tube is small enough. The differences become larger when the clearance is larger. It is proved that the results by the proposed method is accurate enough when the clearance is kept small enough.

关 键 词：火箭弹/发射装置系统 初始扰动 定向管振动 ADAMS 

分 类 号：O326[理学—一般力学与力学基础]