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阻尼振动周期会怎么样
更新时间: 2020-10-04 00:00:00  

机械振动按振幅的变化可分为阻尼振动和无阻尼振动。

物体做无阻尼振动仅指其振幅大小不变,物体作简谐运动时,只受回复力的作用,不受任何阻力,不对外做功,系统没有能量输出、输入,总能量守恒,振幅保持不变,这是一种无阻尼的自由振动。另外一种是受迫等幅振动。物体在振动的过程中有能量的输出,系统又从外界输入了能量,正好补偿了在振动过程中所输出的能量。这种振动系统的能量和振幅都保持不变。

关键词: 阻尼 振动 周期 怎么样

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