关于多个节拍器自锁同步实验的探究  

A study on multiple self synchronization of metronomes

作　　者：路峻岭[1] 顾晨[1] 秦联华[1] 任乃敬 LU Jun-ling;GU Chen;QIN Lian-hua;REN Nai-jing(Department of Physics,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学物理系,北京100084

出　　处：《大学物理》2018年第9期25-29,共5页College Physics

基　　金：教育部"基础学科拔尖学生培养试验计划"项目(20160204)资助

摘　　要：对多个节拍器自锁同步实验进行了分析,给出了对其出现自锁同步现象的一种物理解释,即:每个节拍器的摆锤被擒纵机构冲击后都在做阻尼振动,其间,各个节拍器擒纵机构对各自摆锤的冲击都通过同向弱耦合作用对其它摆锤的振动施加影响,影响的结果使得振动相位较前者后移,使得振动相位较后者前移,最后,众多节拍器都一起作同步振动.We analyze the synchronous selflocking of metronomes and gave its physical explanation.The pendulum is in vibration damping after captured by escapement of metronome and in the meantime,all metronomes are weakly coupled by the vibration,resulting in the vibration phase shift backward than the former one and shift forward than the latter one.Finally,all the vibration of metronome is synchronous.

关 键 词：节拍器 物理摆 阻尼振动 弱耦合 振动相位 

分 类 号：O321[理学—一般力学与力学基础]