摘要
振动和波动是生活中的一种非常普遍而重要的运动形式,其中简谐振动是最简单、最基本的运动,弹簧振子是研究简谐运动的最基本模型.在研究弹簧参与的微小振动时,部分学生不能很好的判定弹簧参与的微小振动是否为简谐运动.本文讨论了系统作简谐运动的充要条件,并通过4个具体例子详细分析了弹簧参与的微小振动.
Vibration and wave are very common and important forms of movement. Simple harmonic vibration is the most simple and basic motion. Spring oscillator is the most basic model of simple harmonic motion. In the study of the vibration with spring, some student feel it is hard to judge whether the micro vibration of spring is the simple harmonic vibration. This paper discusses the necessary and sufficient condition of the simple harmonic vibration. Fur- thermore, four examples of the micro vibration with spring are discussed in detail.
出处
《物理与工程》
2015年第3期41-43,47,共4页
Physics and Engineering
基金
东北师范大学第二批网络辅助教学课程(Blackboard平台)建设项目(108029072)
东北师范大学"学院本科教学综合改革"项目(111007714)
关键词
弹簧
小振动
简谐运动
spring
micro vibration
simple harmonic motion
