一种弹箭极转动惯量测量装置改进设计  

An Improved Design of Measurement System of Polar Moment of Inertia for Missiles

作　　者：陈平[1] 吴海瀛[2] 刘隆强[2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]中国空气动力研究与发展中心,四川绵阳622662

出　　处：《弹箭与制导学报》2014年第3期12-14,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：中央高校基本科研业务费(CDJZR12110007)资助

摘　　要：针对弹箭极转动惯量测量系统中,门形框结构导致的测量结果两值跳跃的不稳定现象和测量精度不高的现状,提出了一种卡头锁紧的装夹方式,并采用实时线性阻尼比补偿算法实时修正扭摆周期,有效避免了门形框结构变形和线性阻尼对测量精度的影响。实验表明,改进后的系统有效克服了两值跳跃的不稳定现象,提高了极转动惯量的测量精度。In view of instahle phenomenon of two-value-jumping and low accuracy by portal frame in the measurement system of polar momentof inertia, a kind of clamping-device-locking method and a way of improving the accuracy of measurement through real-time compensationof moment of inertia with damping-ratio by the algorithm of linear-damping-ratio were proposed. Experiment shows the improvedmeasurement system effectively overcomes the unstable phenomenon and improves the accuracy of measurement.

关 键 词：极转动惯量 门形框结构 两值跳跃 线性阻尼比 

分 类 号：TJ765.4[兵器科学与技术—武器系统与运用工程]