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A Tire Model for Off-Highway Vehicle Simulation on Short Wave Irregular Terrain
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 05, 2010 by SAE International in United States
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Manufacturers of construction machinery are challenged in several ways concerning dynamic loads. Considering off-highway dump trucks that travel through high amplitude short wave irregular terrain with considerable speed two aspects concerning dynamics are important.
The first is the legal requirements that prescribe the maximum limit on the vibration exposure on the operator which is a measure for ride comfort.
The second is the importance of knowing the dynamic loading of the structural parts. In order to use the wide variety of computer-aided design tools to size and optimize mechanical joints, spring-damper elements and the welded structures it is crucial to have information on the time history of the loads. For trucks carrying payloads the most important load contribution is undoubtedly the reaction forces between terrain and tires.
By use of virtual prototypes it is possible to evaluate accelerations of different machine parts and reaction forces in joints. Hence it is possible to find loads for sizing components and structures and prevent fatigue, and also the influence of design changes on ride comfort can be evaluated.
This poses a non-trivial challenge: To be able to describe the tire ground interaction for big off-road tires on short wave irregular terrain.
In this paper a simple tire model combining the well known slip theory and a displaced volume approach is presented. A non-gradient optimization routine is applied for parameter identification by minimizing the difference between simulated data and experimental data obtained from full vehicle testing. The experimental work is carried out by letting a dump truck pass a set of well defined obstacles. Based on the obtained agreement between simulated and measured results the tire model is considered suitable for describing the tire ground interaction and, subsequently, reliable for a model based evaluation of the dynamic loads.
CitationLanger, T., Kristensen, L., Mouritsen, O., and Hansen, M., "A Tire Model for Off-Highway Vehicle Simulation on Short Wave Irregular Terrain," SAE Technical Paper 2010-01-1918, 2010, https://doi.org/10.4271/2010-01-1918.
- Filla, R and Palmberg, J.O., 2003. “Using dynamic simulation in the development of construction machinery”. In Proceedings of the Eight Scandinavian International Conference on Fluid Power.
- 2007. Aktiv Vibrationsdämpning. Panorama, 14-15.
- Kiencke, U. & Nielsen, L., 2005. Automotive Control Systems: For Engine, Driveline and Vehicle, Springer-Verlag, Berlin.
- 2008. Tyre Models for Vehicle Dynamics Simulation. Available at: http://www.ccg-ev.de/de/startseite.html.
- Schmeitz, A.J.C. & Pacejka, H.B., 2004. A semi-empirical three-dimensional tyre model for rolling over arbitrary road unevennesses. Vehicle System Dynamics, 41, 341-350.
- Pacejka, H.B., 2006. Tyre and Vehicle Dynamics 2nd ed., Butterworth-Heinemann.
- IKA RWTH Aachen. IKA - Institut für Kraftfahrzeuge. Available at: www.ika.rwth-aachen.de.
- TNO. TNO - Knowledge for business. Available at: www.tno.nl.
- Langer, T.H. et al., 2009. A Tire Model for Off-Highway Simulation and Comfort Evaluation. In Proceedings of the ASME 2009 International Design Engineering Technical Conference and Computers and Information in Engineering Conference. 7th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (MSNDC). San Diego (CA), USA.
- Rauh, J. & Mössner-Beigel, M., 2008. Tyre simulation challenges. Vehicle System Dynamics, 46:1, 49-62.
- Hirschberg, W., Rill, G. & Weinfurter, H., 2007. Tire model TMeasy. Vehicle System Dynamics, 45:1, 101-119.
- Olson, B.J., 2001. Nonlinear Dynamics of Longitudinal Ground Vehicle Traction. Michigan State University.
- Hydrema,. Available at: http://www.hydrema.com/ [Accessed Marts 23, 2010].
- Gonzalez, F., Gonzalez, M. & Cuadrado, J., 2009. Weak Coupling of Multibody Dynamics and Block Diagram Simulation Tools. In Proceedings of the ASME 2009 International Design Engineering Technical Conference and Computers and Information in Engineering Conference. ASME 2009 International Design Engineering Technical Conference and Computers and Information in Engineering Conference. San Diego (CA), USA: ASME.
- Hoffmann, K., 1989. An Introduction to Measurements using Strain Gauges, Hottinger Baldwin Messtechnik GmbH, Darmstadt.
- Kristensen, L.B. & Langer, T.H., 2009. Belastungstest 922D - NAF Tandemachse, Weimar, Germany: Hydrema Produktion Weimar GmbH.
- Koslik, B. et al., 1998. Active Suspension Design for a Tractor by Optimal Control Methods, Technische Universität München and Universität Augsburg.
- Box, M. J., 1965. A new method of constraint optimization and a comparison with other methods. Computer Journal, 8, 42-52.
- Andersson, J., A survey of multiobjective optimization in engineering design, Linköping, Sweden: Department of Mechanical Engineering, Linköping University.