Modal-Dynamic Analysis of the Steering Mechanism on a Vehicle

Abstract:

The present paper aims to identify the dynamic feedback of a steering mechanism in a vehicle, mainly under stationary conditions. The modal – dynamic analysis was established by applying two methods, the experimental method and the finite element modelling. For the experimental results concerning the proper frequencies of the steering box and of the tie rods assembly, a method of excitation with a measured and controlled linear momentum (impulse) force was implemented. The modal-based analysis aimed to measure the proper frequencies and the proper vibration modes. Therefore, the harmonic analysis obtained by using the finite element method is applied in order to determine the frequency variation diagrams of some nodes displacements, from some of the elements of the mechanism. Furthermore, the applied analysis seeks to identify the critical frequencies and the corresponding phase angles by investigating the displacements, the strains and the stresses of the mechanism elements, which correspond to critical frequencies and phase angles.

• Periodical: Applied Mechanics and Materials (Volume 822)
• Pages: 26-35
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.822.26
• Online since: January 2016
• Authors: Nicolae Dumitru, Gabriel Marinescu, Adrian Roşca, Oana Victoria Oțăt*
• Keywords: Critical Frequency, Finite Elements, Harmonic Analysis, Modal Analysis, Steering Mechanism

References

[1] Rahmani Hanzaki, A. et al., An improved dynamic modeling of a multibody system with spherical joints, Springer Science+Business Media B.V., (2009).

[2] Bian, X. L., Song, B. A., Becker, W., The Optimisation Design of the McPherson Strut and Steering Mechanism for Automobiles, Forschung im Ingenieurwesen 68, (2003).

DOI: 10.1007/s10010-003-0107-6

[3] An S. -J., YI, K., Jung, G., Lee, K. I., Kim, Y. -W., Desired Yaw Rate and Steering Control Method During Cornering for a Six-Whelled Vehicle, International Journal of Automotive Technology, Vol. 9, No. 2, pp.173-181, (2008).

DOI: 10.1007/s12239-008-0022-9

[4] Odenthal, D., Bunte, T., Ackermann, J., Nonlinear Steering and Braking Control for Vehicle Rollover Avoidance, European Control Conference, (1999).

DOI: 10.23919/ecc.1999.7099370

[5] Viana, L.G., Romero, G., Maroto, J., Felez, J., Modeling and Simulation of a Hydraulic Power Assisted Steering System through Bond Graphs, (2010).

[6] Tarokah, M., McDermott, G., Kinematics Modeling and Analyses of Articulater Rovers, Robotics - IEEE Transactions on, (2005).

[7] Yi, J., Wang, H., Zhang, J., Song, D., Jayasuriya, S., Liu, J., Kinematic Modeling and Analysis of Skid-Steered Mobile Robots with Applications to Low-Cost Inertial-Measurement-Unit-Based Motion Estimation, IEEE Transactions On Robotics, Vol 25, No. 5, October (2009).

DOI: 10.1109/tro.2009.2026506

[8] 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, vol. 22, (2012).

[9] Peter Kohnke, Ansys Theory Reference, Releas 5. 6, 001242, Eleventh Edition.