In simplest terms, vibration in motorized equipment is merely the back and forth movement or oscillation of machines and components, such as drive motors, driven devices (pumps, compressors and so on) ...

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Music radio sound wave. Sign of audio digital record, vibration, pulse and music soundtrack. Vector illustration. Vector 3d echo audio circular wavefrom spectrum. Abstract music waves oscillation ...

When these forces exist in certain relative proportions and phases, sustained oscillation as in singing takes place. The whole mechanism may be represented analytically by force equations, from which ...

However, hydropower units will bring the risk of low-frequency oscillation or ultra-low frequency oscillation to the power system, threatening the stable operation of the power grid. Therefore, it is ...