三线摆测刚体转动惯量:实验改进与教学体会  

THREE-WIRE PENDULUM TO MEASURE THE MOMENT OF INERTIA OF A RIGID BODY: EXPERIMENTAL IMPROVEMENT AND TEACHING EXPERIENCE

作　　者：李华锋[1] 商宏学[1] 王永[2] LI Huafeng;SHANG Hongxue;WANG Yong(Mechanics Experimental Teaching Center,Zhejiang University,Hangzhou 310058,China;School of Aeronautics and Astronautics,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学力学实验教学中心,杭州310058 [2]浙江大学航空航天学院,杭州310027

出　　处：《力学与实践》2021年第5期766-770,共5页Mechanics in Engineering

摘　　要：三线摆测量刚体转动惯量是工科大类基础力学实验教学中的重要一环。尽管该实验已经过多年的教学实践和改进,但学生的实验结果常不尽如人意,这极大地挫伤了其学习积极性。本文介绍浙江大学力学实验教学中心实验团队近年来对三线摆实验所做的诸多改进及教学体会,以期能起到抛砖引玉之功。The measurement of the moment of inertia of a rigid body with a three-wire pendulum is an important part of the experimental teaching of basic mechanics for engineering majors. Although the experiment has been practiced and improved for many years, the results of the experiment are often not satisfactory, which greatly dampens students enthusiasm for learning. This article introduces improvements and teaching experience during recent years in the three-wire pendulum experiment from the experimental team of the Mechanics Experimental Teaching Center of Zhejiang University, aiming to inspiring more attracting ideas.

关 键 词：三线摆 转动惯量 误差分析 实验改进 教学体会 

分 类 号：O313.3[理学—一般力学与力学基础]