Implications of modelling one-dimensional impact by using a spring and damper element
Blekinge Institute of Technology, School of Engineering, Department of Mechanical Engineering2005 (English)In: Proceedings of the Institution of mechanical engineers. Proceedings part K, journal of multi-body dynamics, ISSN 1464-4193, Vol. 219, no 7, 299-305 p.Article in journal (Refereed) PublishedAlternative title
Påverkan av modellering av endimensionel kontakt vid användandet av ett fjäder- och dämpar-element (Swedish)
A spring and damper contact force element is often used for modelling impact in multi-body dynamics. The related condition for transition between contact and non-contact is, however, inconsistently implemented in the literature and commercial software. This comparative study aims to clarify the implications of four commonly used transition conditions. Principal differences are discussed and, by simulation of a typical system, it is shown that there are significant differences in the dynamics of the system depending on the different conditions. Two of them give unrealistic contact forces and should imply incorrect prediction of system dynamics in most applications. This suggests that it is important to review results obtained from using these conditions and to eliminate them from commercial software. A discussion of the two other conditions culminates in a recommendation.
Place, publisher, year, edition, pages
London: Professional Engineering Publishing , 2005. Vol. 219, no 7, 299-305 p.
CONTACT DYNAMICS, MECHANICS OF MACHINES, MULTI-BODY DYNAMICS, NON-LINEAR DYNAMICS, SOIL COMPACTION
IdentifiersURN: urn:nbn:se:bth-9600ISI: 000232881100008Local ID: oai:bth.se:forskinfoBC921B17AFC6AD25C12570A40047EEB2OAI: oai:DiVA.org:bth-9600DiVA: diva2:837491