Numerical investigation of the influence of aerodynamic forces and wheel dynamic loads of a vehicle subjected to kinematic excitations

• Autorzy: Makowski Michał , Grzesikiewicz Wiesław
• Języki publikacji: EN

Abstrakty

EN

This paper presents the investigations of vibrations of a vehicle equipped with controlled magneto-rheological (MR) dampers and aerodynamic elements. A scaled sports vehicle model was developed to conduct this research. The tests were carried out with kinematic excitation resulting from road roughness and motion at a variable speed. During the airflow, the aerodynamic elements forces and moments on the test body. Vehicle vibrations are limited by the means of MR controlled dampers. The damping force is determined on the basis of an algorithm, where various strategies for determining forces in MR damper have been adopted. Two criteria were considered for assessing the effectiveness of the control algorithm - minimising vertical acceleration and changes in wheel normal reactions on road surface. This paper presents the results of those studies.

Słowa kluczowe

EN

magneto-rheological damper; vehicle; control algorithm; vibration

PL

tłumik magnetoreologiczny; pojazd; algorytm sterowania; drgania

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2019
• Tom: Vol. 30, nr 2
• Strony: art. no. 2019221
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Makowski Michał

• Warsaw University of Technology, Institute of Vehicles, ul. Narbutta 84, 02-524 Warszawa

autor

Grzesikiewicz Wiesław

• Warsaw University of Technology, Institute of Vehicles, ul. Narbutta 84, 02-524 Warszawa

Bibliografia

• 1. R. Bansal, R. B. Sharma, Drag reduction of passenger car using add-on devices, Journal of Aerodynamics, Volume 2014, Article ID 678518, 13 pages.
• 2. M. W. Dobry, Energy Analysis of a Mechanical System with a Dynamic Vibration Absorber, Vibrations in Physical Systems, 27 (2016) 10-1 - 10-8.
• 3. R. Faraj, C. Graczykowski, Hybrid Prediction Control for self-adaptive fluid-based shock-absorbers, Journal of Sound and Vibration, 449 (2019) 427 - 446, DOI: 10.1016/j.jsv.2019.02.022.
• 4. C. Graczykowski, R. Faraj, Development of control systems for fluid-based adaptive impact absorbers, Mechanical Systems and Signal Processing, ISSN: 0888-3270, DOI: 10.1016/j.ymssp.2018.12.006, 122 (2019) 622 - 641.
• 5. W. Grzesikiewicz, M. Makowski, Optimisation of vehicle vibration damping in a semi-active system, Modelowanie Inżynierskie, 68 (2018) 38 - 46.
• 6. D. C. Karnopp, Active damping in road vehicle suspension system, Vehicle System Dynamics, 12 (1983) 183 - 188.
• 7. K. Kurec, M. Remer, J. Broniszewski, M. Bibik, S. Tudruj, J. Piechna, Research Article Advanced Modeling and Simulation of Vehicle Active Aerodynamic Safety, Journal of Advanced Transportation, Volume 2019, doi.org/10.1155/2019/7308590, 2019.
• 8. M. Makowski, L. Knap, Investigation of an off-road vehicle equipped with magnetorheological dampers, Advances in Mechanical Engineering, 10(5) (2018) 1 - 11, DOI: 10.1177/1687814018778222.
• 9. M. Michajłow, T. Szolc, Ł. Jankowski, R. Konowrocki, Semi-Active Reduction of Vibrations of Periodically Oscillating System, Solid State Phenomena, 248 (2016) 111 - 118, DOI 10.4028/www.scientific.net/SSP.248.111.
• 10. M. Rosłół, B. Sapiński, Ability Of Energy Harvesting Mr Damper To Act As A Velocity Sensor In Vibration Control Systems, Acta_Mechanica Et Automatica, 13(2) (2019) DOI 10.2478/ama-2019-0019.
• 11. T. Schütz, Hucho-Aerodynamik des Automobils, Springer Fachmedien Wiesbaden, 2013.
• 12. Thomas Lord Research Center, www.mrfluid.com, 2019.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).