مقاله A high-frequency first-principle model of a shock absorber and servo-hydraulic tester : تی پی بین

خلاصه مقاله

The aim of this paper is to present the model of a complete system, consisting of a variable damping shock absorber and a specialized servo-hydraulic tester, used to evaluate the vibration levels produced by a shock absorber. This kind of evaluation is used within the automotive industry to investigate shock absorbers, as an alternative to vehicle-level tests. The purpose of such testing is to quantify a shock absorber's ability to transfer the mid- and high-frequency content of the vibrations passing from the road profile, through the suspension, to the vehicle body. The first-principle non-linear model formulated, derived and validated in this paper allows laboratory test conditions to be reproduced. It also provides an understanding of structural vibrations in regard to the dynamical interactions between the shock absorber, its basic components (e.g. valve systems), mounting elements, and the hydraulic actuator. The model is capable of capturing important dynamical properties over a wide operating range, yet is only moderately complex. The model has proved to be qualitatively suitable and quantitatively accurate based on validation work performed for the entire frequency range of interest, i.e. 0–700 Hz. The application scope of this study covers the engineering need to develop a simulation tool for high-frequency shock absorber design optimization.

نویسندگان

Piotr Czop [ Tenneco Automotive Eastern Europe, Eastern European Engineering Center (EEEC), Control and Measuring Systems Department, Bojkowska 59 B, 44-100 Gliwice, Poland ]

Damian SŁawik [ Tenneco Automotive Eastern Europe, Eastern European Engineering Center (EEEC), Control and Measuring Systems Department, Bojkowska 59 B, 44-100 Gliwice, Poland ]

کلمات کلیدی

Shock absorber Hydraulic actuator Servo valve Vibrations

آدرس این مقاله

آدرس مستقیم دسترسی به این مقاله

مشخصات کنفرانس

مشاهده مقالات

Mechanical Systems and Signal Processing

Mechanical Systems and Signal Processing (MSSP) is an interdisciplinary journal in Mechanical, Aerospace and Civil Engineering with the purpose of reporting scientific advancements of the highest quality arising from new techniques in sensing, instrumentation, signal processing, modelling and control of dynamic systems. MSSP papers are expected to make a demonstrable original contribution to engineering knowledge, which should be significant in terms of advancement over established methods. Especially sought are papers that include both theoretical and experimental aspects, or that include theoretical material of high relevance to practical applications.

حوزه های تحت پوشش : تحریک حسگرو کنترل، اندازه گیری و پردازش سیگنال، مکانیک