noise and vibration analyzer for power steering system

摘要

PURPOSE: A noise and vibration analyzing device for a power steering system is provided to analyze the noise and the vibration of the power steering system in a sealed space and predict the change of frequency characteristics of vibration in advance. CONSTITUTION: A noise and vibration analyzing device for a power steering system includes a body part(10) attached with a sound absorption material(10a) on the entire inner surface and forming a closed space to be opened and closed, wherein the power steering system is mounted in the body part, a pump for supplying operation oil to a gear box(12), a plurality of tube ways(L1-L5) mounted between parts of the power steering system for communicating the parts, an acceleration sensor(44) for measuring vibration generated on the tube ways, a noise measuring element(42) for measuring noise generated in the gear box, and a vibration/noise analyzer(40) connected to the acceleration sensor and the noise measuring element for detecting corresponding data from the acceleration sensor and the noise measuring element to analyze the frequency characteristics of the noise with respect to the vibration.