| A Measuring Method on Moment of Inertia of Large-scale Ammunition |
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| 引用本文： | 侯文 郑宾 杨瑞峰. A Measuring Method on Moment of Inertia of Large-scale Ammunition[J]. 兵工学报(英文版), 2005, 1(1): 41-45 |
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| 作者姓名： | 侯文 郑宾 杨瑞峰 |
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| 作者单位： | KeyLaboftheMinistryofEducationforInstrumentationScienceandDynamicMeasurement,NorthUniversityofChina,TaiyuanShanxi030051,China |
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| 摘 要： | A compound pendulum based measurement method is put forward and the relevant equipment is designed. By using the variation of angle with the time acquired by an angular displacement sensor, the moment of inertia is obtained through the numerical solution of certain equations, which are deduced from the phase-plane analysis of compound pendulum. The influences of both friction and air resistance on the compound pendulum are already taken into consideration without estimating and measuring the resistances in advance. With this method, the to-be-measured object can be positioned and fixed easily and safely. Numerical simulations show a favorable precision of this method.
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| 关 键 词： | 惯性力矩 复摆测量法 摩擦力矩 空气阻力 相平面 角度位移传感器 导弹 |
A Measuring Method on Moment of Inertia of Large-scale Ammunition |
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| HOU Wen,ZHENG Bin,YANG Rui-feng. A Measuring Method on Moment of Inertia of Large-scale Ammunition[J]. Journal of China Ordnance, 2005, 1(1): 41-45 |
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| Authors: | HOU Wen ZHENG Bin YANG Rui-feng |
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| Abstract: | A compound pendulum based measurement method is put forward and the relevant equipment is designed. By using the variation of angle with the time acquired by an angular displacement sensor, the moment of inertia is obtained through the numerical solution of certain equations, which are deduced from the phase-plane analysis of compound pendulum. The influences of both friction and air resistance on the compound pendulum are already taken into consideration without estimating and measuring the resistances in advance. With this method, the to-be-measured object can be positioned and fixed easily and safely. Numerical simulations show a favorable precision of this method. |
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| Keywords: | compound pendulum moment of inertia friction moment air resistance phase-plane Moment of Inertia Numerical simulations show precision object fixed method influences friction air resistance taken consideration measuring advance analysis moment of inertia numerical solution equations variation |
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