This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Axle Failures Induced by Incorrect Steering Geometry for a Four-Wheel Steer, Off-Highway Vehicle
Annotation ability available
Sector:
Language:
English
Abstract
Recent testing of a new rough terrain forklift, which has operator-selectable two-wheel and four-wheel steering modes, led to the discovery that incorrect steering geometry can cause significant wear and tear, and even failure, of an axle. The paper discusses the inherent incompatibility between two-wheel and four-wheel steering geometry. The specific tests which led to the current understanding of the failure mode are described. The test results are analyzed in the context of cornering forces generated by a tire operating at a slip angle. The implications of the conclusions for the design of four-wheel steer, off-highway axles and vehicles are discussed.
Recommended Content
Technical Paper | Modeling and Simulation of a 6x6 Military Troop/Cargo Transport Vehicle |
Technical Paper | Design Guidelines for Automotive Fuel Level Sensors |
Technical Paper | Potential for Commonization of Brake Testing for Globally Marketed Vehicles |
Citation
Hove, L. and Simpson, S., "Axle Failures Induced by Incorrect Steering Geometry for a Four-Wheel Steer, Off-Highway Vehicle," SAE Technical Paper 932415, 1993, https://doi.org/10.4271/932415.Also In
References
- Nordeen, D.L. Cortese, A.D. “Force and Moment Characteristics of Rolling Tires,” SAE Transactions 72 1964 325 336
- Gillespie, Thomas D. Fundamentals of Vehicle Dynamics Society of Automotive Engineers Warrendale, PA 1992
- “Laboratory Testing Machines For Measuring The Steady State Force And Moment Properties Of Passenger Car Tires,” SAE J1106 Society of Automotive Engineers Warrendale, PA
- “Laboratory Testing Machines And Procedures For Measuring The Steady State Force And Moment Properties Of Passenger Car Tires,” SAE J1107 Society of Automotive Engineers Warrendale, PA
- Sharp, R.S. El-Nashar, M.A. “A Generally Applicable Digital Computer Based Mathematical Model for the Generation of Shear Forces by Pneumatic Tyres,” Vehicle Systems Dynamics 15 4 1986 187 209
- Loeb, J.S. Guenther, D.A. Chen, H.H.F. Ellis, J.R. “Lateral Stiffness, Cornering Stiffness and Relaxation Length of the Pneumatic Tire,” SAE Paper No. 900129 1990