测量摩擦系数的三力平衡装置研制与应用  

Development and application of three forces balance device for measuring friction coefficient

作　　者：陈静[1,2] 陈维毅[1] 郭美卿[2] 

机构地区：[1]太原理工大学山西省材料强度和结构冲击重点实验室,山西太原030024 [2]太原理工大学力学学院,山西太原030024

出　　处：《实验技术与管理》2014年第12期84-86,94,共4页Experimental Technology and Management

基　　金：国家自然科学基金青年基金项目(51301117);山西省青年科技基金项目(2013021003-1)

摘　　要：介绍自行设计的实验教学装置,装置由固定支座、支杆、定滑轮、牵拉绳4部分构成。该装置能测量定滑轮的摩擦系数、验证静力学中三力平衡汇交定理并进行误差分析与矫正。学生通过对比分析理论值、矫正值和实测值,可以发现考虑摩擦系数的矫正值比不考虑摩擦系数的理论值更接近实测值,培养学生发现问题、分析问题和解决问题的能力。该装置调节灵活,易于操作。This article proposes the device for experimental teaching which is composed of fixed support,bearing rod,fixed pulley and pull cord.This device is used to verify the theorem of concurrence of three balanced forces,and analyze the error for the calibration by measuring the friction coefficient.The results indicate that compared with than theoretical value,the correction value with friction coefficient is close to the measured value.The ability for learning and innovation of students can be improved by the device.The device is easy to operate and adjustable.The device can be used as an effective teaching tool based on the virtue of being adjustable and easily operable.

关 键 词：实验装置 摩擦系数 三力平衡汇交定理 

分 类 号：G484[文化科学—教育学] O312-33[文化科学—教育技术学]