【摘要】 叙述了三线摆的结构原理 ,介绍了该摆小角与大角摆动周期的计算方法。利用三线摆的结构原理可以测量小型弹箭、子弹头、飞机模型及其他构件的惯性矩。当 R/ L <1 / 30 ,φ0 ≤ 60°时 ,该装置的测量精确度可优于 1 %。更多还原

【Abstract】 The structure principle of three line pendulum is outlined,and the calculation methods of its shimmy period in small and large angle are presented.The structure principle of three line pendulum can be used to measure the moment of inertia of small missiles,submunition,aeroplane model and other structural members.When R/L<1/30,and φ 0≤60°,the measurement accuracy can be better than 1%.更多还原