Analysis of High Frequency Forces Generated by Hydraulic Automotive Dampers

Autor:	David J. Cole, Victor Y. B. Yung
Rok vydání:	2002
Předmět:	Force generation Engineering business.industry Mechanical Engineering Automotive industry Wavelet transform Valve opening Structural engineering Damper Nonlinear system Automotive Engineering Harmonic Safety Risk Reliability and Quality business Simulation
Zdroj:	Vehicle System Dynamics. 37:441-452
ISSN:	1744-5159 0042-3114
DOI:	10.1080/00423114.2002.11666253
Popis:	SUMMARYThis paper describes research undertaken to study the performance of automotive dampers at frequencies up to about 130 Hz, and to evaluate the accuracy of an existing nonlinear mathematical model. The high frequency force-velocity behaviour of a monotube damper was measured and a comparison was made with the simulated damper forces. The wavelet transform was used for data analysis in addition to traditional techniques. The analysis indicated that low velocity behaviour and valve opening characteristics are of primary importance in determining high frequency harmonic force generation. The simulations showed good agreement with measured data at low frequencies. However, errors of more than 15% were found for frequencies above 4 Hz.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f43e20d6138d7fe3b04ca26361bce665 https://doi.org/10.1080/00423114.2002.11666253 Zobrazit plný text záznamu