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On Fluid Power Pump and Motor Design Tools for Noise Reduction PDF

140 Pages·2011·1.213 MB·other
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Preview On Fluid Power Pump and Motor Design Tools for Noise Reduction

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The main source of noise is considered to be the pump and motor unit in the fluid power system. The noise can be divided into two parts: fluid-borne noise and structure-borne noise. The fluid borne noise derives from flow pulsation which is subsequently spread through pipeline systems to other parts of the fluid power systems. The flow pulsation is created due to the finite stiffness of oil and the limited number of pumping elements. The structure-borne noise generates directly from pulsating forces in the machine. The pulsating forces are mainly created by the pressure differences between high and low pressure ports.

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