Implications of modelling one-dimensional impact by using a spring and damper element
| Document type: | Journal Articles |
|---|---|
| Article type: | Original article |
| Peer reviewed: | Yes |
| Full text: | |
| Author(s): | Anders Jönsson, Göran Broman, Jens Bathelt |
| Title: | Implications of modelling one-dimensional impact by using a spring and damper element |
| Translated title: | Påverkan av modellering av endimensionel kontakt vid användandet av ett fjäder- och dämpar-element |
| Journal: | Proceedings of the Institution of Mechanical Engineers - Part K - Journal of Multibody Dynamics |
| Year: | 2005 |
| Volume: | 219 |
| Issue: | 7 |
| Pagination: | 299-305 |
| ISSN: | 1464-4193 |
| Publisher: | Professional Engineering Publishing |
| City: | London |
| ISI number: | 000232881100008 |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Engineering - Dept. of Mechanical Engineering (Sektionen för teknik – avd. för maskinteknik) School of Engineering S- 371 79 Karlskrona +46 455 38 50 00 http://www.bth.se/ing/ |
| Authors e-mail: | anders.jonsson@imes.mavt.ethz.ch, goran.broman@bth.se, jens.bathelt@imes.mavt.ethz.ch |
| Language: | English |
| Abstract: | 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. |
| Subject: | Mechanical Engineering\Structural Dynamics Mechanical Engineering\General Mechanical Engineering\Structural Mechanics |
| Keywords: | CONTACT DYNAMICS; MECHANICS OF MACHINES; MULTI-BODY DYNAMICS; NON-LINEAR DYNAMICS; SOIL COMPACTION |
