航天器贮箱液体的有效转动惯量(下)  

Effectual Liquid Inertial Moment in Spacecraft Tank (Ⅱ)

作　　者：马斌捷[1] 刘桢[1] 林宏 

机构地区：[1]北京强度环境研究所,北京100076 [2]北京宇航系统工程研究所,北京100076

出　　处：《导弹与航天运载技术》2011年第2期15-18,28,共5页Missiles and Space Vehicles

摘　　要：分析整理了航天器圆环筒形平底贮箱内液体的有效转动惯量计算方法,修正了现有文献中的错误,在常用的参数范围内对液体的有效转动惯量进行了计算,对其变化规律和影响因素做了物理分析,推导了液体滚转有效转动惯量的计算公式,并给出了适用的近似计算方法。对于纵向挡板引起的液体滚转有效转动惯量,给出了工程计算方法,能够确定滚转时液体的有效转动惯量和阻尼的量级和范围。讨论了横向挡板对绕横轴的液体有效转动惯量的影响,指出了目前未解决的问题,提出了开展液体有效转动惯量工程研究的建议。This paper analyzes and settles the computational methods about the effective liquid inertial moment in annular tank,computes the liquid inertial moment in the range of common parameters,carries out the physical analysis on the varying rules and influencing factors,develops the formula about the effective liquid inertial rolling moment,and describes the approximate computational method for engineering application.The engineer computation method has given out for the inertia moment caused by baffles.Using this method,the level and range of both the effective inertia moment and the damping of liquids could be obtained.In the end,the effect of the transverse baffle to the effective liquid inertia moment is discussed.And some unsolved problems are pointed out.The suggestions on the effective liquid inertia moment are given for engineering purpose.

关 键 词：液体晃动 阻尼 转动惯量 

分 类 号：V412[航空宇航科学与技术—航空宇航推进理论与工程]