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利用振动速度又如何快速识别部分振动故障?

日期:2020-01-15 00:16
浏览次数:157
摘要: 振动是物体相对于平衡位置所作的的往复运动,作为运动必然存在速度关系。 振动速度反映了能量的大小,速度与频率成1次关系,是疲劳失效的直接指标,疲劳=位移×频率,速度=位移×频率,速度=疲劳。因为它同时包含幅值和频率两种信息,因此成为衡量设备状态的有效指标,并已形成有效的工业标准。 疲劳失效基本由频率10 Hz到2000 Hz之间的振动造成的。因此,当振动频率可能在这个区域时,应测量振动速度。在振动测量过程中,除特别注明外,振动速度的量值为有效值值,单位是[mm/s]。 下图的百米赛跑速度可以很好说明...

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