Buckling Safety Assessment for the Multi-Axle Steering Linkage of an 8x8 Special Purpose Vehicle

Year 2019, , 321 - 327, 30.12.2019

Mehmet Murat Topaç , Merve Karaca Aziz Başdemir , Batuhan Kuleli

https://doi.org/10.18466/cbayarfbe.514068

Abstract

Vehicle
steering mechanisms are generally considered as safety sub-systems due to their
control and stability functions. Therefore, structural elements of a steering
linkage should strictly resist the service loads without any overload failure.
This paper reports an exemplary case study on the buckling evaluation of the
multi-axle steering linkage tie rods which will be used in an 8x8 special
purpose vehicle. In the first part of the study, full multibody dynamics (MBD)
model of the vehicle including the steering linkage was composed by using
Adams/Car™ commercial software. With this model, handling simulations were
carried out to determine the service loads for various driving conditions. In
order to verify the MBD model, reaction forces occur at the linkage joints were
also calculated by using detailed finite element (FE) model of the entire system
for the same driving conditions. In the final part of the work, buckling safety
of the tie rods was assessed for the critical load case. In this way
suitability of the system was evaluated in terms of buckling.

Keywords

8x8 vehicle, multi-axle steering, multibody dynamics (MBD), simulation, finite element analysis (FEA), computer-aided engineering (CAE)

References

• 1. Wu, J, Zhang, S, Yang, Q. Deformation Effect Simulation and Optimization for Double Front Axle Steering Mechanism, 4th International Conference on Computer Modeling and Simulation, Hong Kong, China, 2012, pp 27-31.
• 2. Matschinsky, W, Radführungen der Straβenfahrzeuge; Springer-Verlag: Berlin, Germany, 2007; pp 265.
• 3. Watanabe, K, Yamankawa, J, Tanaka, M., Sasaki, T., Turning characteristics of multi-axle vehicles, Journal of Terramechanics, 2007, 44, 81-87.
• 4. Yucheng, L, Wei, Z, Guifan, Z, Cong, W, Kinematical models and emulation of multi-axle steering of off-highway vehicles with multi-axle, Journal of Commercial Vehicles, 1995, 104, 261-267.
• 5. Topaç, M.M, Kaplan, A, Kuleli, B, Deryal, U. Design of a Multi-Axle Steering Mechanism for a Special Purpose Vehicle: Kinematic Design and Optimization, book of full text proceedings of 8th International Advanced Technologies Symposium, Elazığ, Turkey, 2017, pp 502-509.
• 6. Topaç, M.M, Karaca, M, Kuleli, B. A Design Optimization Study for the Multi-Axle Steering System of an 8x8 ARFF Vehicle, proceedings of 3rd International Conference on: Applied Physics, System Science and Computers, Dubrovnik, Croatia, 2018, in press.
• 7. Shigley, J.E, Mischke, C.R, Mechanical Engineering Design; McGraw-Hill, Inc.: New York, U.S.A, 1989; pp 123.
• 8. Kann, D.F, McDonald, J.W. NFPA® 414: Standard for Aircraft Rescue and Fire-Fighting Vehicles 2017 Edition; National Fire Protection Association: Massachusetts, U.S.A, 2017; pp 414-40.
• 9. Sharp, R.S, Granger, R, On car steering torques at parking speeds, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2003, 217(2), 87-96.
• 10. Rill, G, Vehicle Dynamics: Lecture Notes; Fachhochschule Regensburg: Regensburg, Germany, 2006; pp 39, 40.
• 11. Topaç, M.M, Karaca, M, Atak, M, Deryal, U, Response surface-based design study of a relay lever for a bus independent suspension steering mechanism, International Journal of Automotive Engineering and Technologies, 2017, 6(Special issue 1), 1-10.
• 12. ANSYS Theory Reference, ANSYS Release 10.0; ANSYS, Inc.: Canonsburg, U.S.A., 2005; pp --.
• 13. Timoshenko S.P, Strength of Materials Part I Elementary Theory and Problems, 2nd edn; D. Van Nostrand Company, Inc.: New York, U.S.A., 1940; pp 252.