The paper describes progress of research into the mechanisms of high-frequency (up to 500 Hz) force generation in hydraulic automotive dampers. A test facility for making measurements of high-frequency behaviour is described. The force response of a monotube damper to double-sinusoid displacement inputs is presented. Wavelet analysis is used to aid identification of the force generation mechanisms. Friction is found to make a significant contribution, particularly at changes in sign of damper velocity and at high frequencies. An existing mathematical model of a damper is modified to improve the representation of friction, and it is found that prediction of force response to a random displacement input is significantly improved at frequencies above 50 Hz.
Mechanisms of high-frequency force generation in hydraulic automotive dampers
2004
10 Seiten, 6 Quellen
Conference paper
English
Mechanisms of high frequency force generation in hydraulic automotive dampers
British Library Conference Proceedings | 2004
|Mechanisms of high-frequency force generation in hydraulic automotive dampers
Automotive engineering | 2004
|Modelling high frequency force behaviour of hydraulic automotive dampers
Online Contents | 2006
|Modelling high frequency force behaviour of hydraulic automotive dampers
Tema Archive | 2006
|Modelling high frequency force behaviour of hydraulic automotive dampers
Taylor & Francis Verlag | 2006
|