Aspects on damper-attachment compliance
2006 (English)In: Int. J. of Vehicle Design, ISSN 0143-3369, Vol. 40, no 1/2/3, 77-92 p.Article in journal (Refereed) Published
This paper investigates how attachment compliance coming from mounting bushings or brackets affects damper efficiency. Analyses with a simple mass-spring-damper system show that compliance in damper-attachment points reduces the damper efficiency. If however vibration isolation of the mass is considered, it may be seen that compliance increases low frequency vibrations but reduces high frequency vibrations. Through analyses of this system, the relative damping ratio is studied as a function of excitation frequency and attachment stiffness. furthermore obtained from both static finite element (FE) analysis of the chassis frame and from dynamic FE analysis of a tractor. The effect damper-attachment compliance has on vehicle behaviour is finally quantified with MBS simulations of a tractor semi trailer combination. It is found that attachment stiffness should be considered when simulating load cases containing high frequency inputs.
Place, publisher, year, edition, pages
2006. Vol. 40, no 1/2/3, 77-92 p.
attachment compliance; heavy vehicle; hydraulic dampers; parameter extraction; relative darriping; suspension systems
IdentifiersURN: urn:nbn:se:kth:diva-6321DOI: 10.1504/IJVD.2006.008454ISI: 000234901300006ScopusID: 2-s2.0-31044437181OAI: oai:DiVA.org:kth-6321DiVA: diva2:11002
QC 201008302006-11-012006-11-012010-12-06Bibliographically approved