主动阻尼(active damping)的概念: 在系统基频附近,振动幅值最大,在基频附近的‘主动减振’,通常称为主动阻尼。基频之外的主动减振就是一般意义的主动减振。
对于一般的阻尼作用也可以按以上理解,英文中这么解释:
damping is defined as the reduction of the response amplitude of the system within a limited bandwith near the natural frequencies of the system.
vibration isolation is defined as the attenutation of the response of the system after its corner frequency to cut-off all the disturbance after that frequency allowing all the signals below it pass faithfully