자동차 동력조향용 유압호스의 압력맥동 감쇠특성 = Attenuation Characteristics of Fluid-Borne Pressure Ripple in Automotive Power Steering Hydraulic Hoses

다국어 초록 (Multilingual Abstract)

This paper presents experimental investigations on the attenuation characteristics of pressure ripple in automotive power steering hydraulic hoses. Also, a mathematical model of hydraulic hoses in proposed to support design of the power steering hydraulic circuit and analyze the attenuation characteristics of pressure ripples. The experimental results show that the pulsation attenuation characteristics of hydraulic hoses is remarkably affected by the flexible metal tube inserted coaxially inside a hydraulic hose with a finite length as well as viscoelastic properties of hose wall. It is also shown that the predicted results by the model proposed here agree well with the measured results over a wide range of frequency.