测量刚体转动惯量实验仪的改进  

Instrument improvement on the moment inertia of rigid body

作　　者：李名扬 张鹏[1] 潘浩诚 曹凌宇[1] 张其星 张瑛[1] 

机构地区：[1]中国石油大学(北京),北京102249

出　　处：《物理实验》2017年第B12期65-68,共4页Physics Experimentation

基　　金：国家自然科学基金青年基金项目(No.11405272)

摘　　要：针对传统的测定刚体转动惯量的实验仪器塔轮部分存在的诸如砝码晃动、绕线重叠、绕线偏离水平位置等问题,设计了动力驱动装置,利用柱体由于重力沿固定的卡头下降带动中心转轴转动,从而带动主体体系转动,解决了原动力系统的诸多问题.In view of the problems for the cone part of the instrument of the moment inertia,such as sloshing of the weight,winding overlap,winding deviating from the horizontal position and sliding of rope,a new driving device was designed due to the leading rotation of the centre shaft promoted by the decline brought about by the gravity of the spiral circular cylinder.Hence the main rotation system could be driven and then the originally dynamical system was settled.

关 键 词：刚体 转动惯量 动力驱动装置 

分 类 号：O313.3[理学—一般力学与力学基础]