刚体转动实验中摩擦力矩的讨论  

On the frictional force moment in the experiment of rotation of rigid subject

作　　者：常季敏[1] 

机构地区：[1]镇江市高等专科学校,江苏镇江212003

出　　处：《镇江高专学报》2002年第4期75-77,共3页Journal of Zhenjiang College

摘　　要：刚体转动实验在忽略摩擦力矩的条件下 ,将所测数据通过作r -t-1图线来得出转动惯量的大小。考虑到因摩擦力矩的存在而产生误差的性质及摩擦力矩的数量级等因素 。The rotary inertia is calcuated through the diagram of r～t -1 with the data measured in the experiment of rotation of rigid subject,in which moment frictional force is conventionally neglected.This paper deals with the problems such as whether there is any influence on the above calcultaion when the moment is considered and why,what sort of the error is due to the consideration of the moment,and what the order of magnitude of the moment is,and so on.

关 键 词：刚体转动实验 摩擦力矩 转动惯量 误差 实验数据 

分 类 号：O313.3[理学—一般力学与力学基础]