摘要
本文指出在讨论阻尼振动的回复时间时必须要考虑仪器的测量精度才有意义 ,而且并非临界阻尼运动的回复时间最短 ,而是本文所定义的“弱阻尼振动的临界状态”的回复时间最短 。
In this paper, it is pointed out that the accuracy of measurement must be considered for the discussion about the restitution time of damped vibration, and it is in the “critical state of weakly damped vibration” defined by this paper, not the critical damping state, that the restitution time is the shortest. Further more, the relation between the shortest restitution time and the accuracy of measurement is deduced.
出处
《物理与工程》
2001年第3期29-30,57,共3页
Physics and Engineering
关键词
弱阻尼振动
临界状态
临界阻尼
最短回复时间
测量精度
过阻尼
critical state of weakly damped vibration
critical damping
restitution time
accuracy of measurement
