An analysis of tire relaxation in conditions of the wheel side cornering agle oscilations

• Autorzy: Luty W.
• Języki publikacji: EN

Abstrakty

EN

Results of laboratory experimental research of a truck tire, in conditions of side cornering angle dynamic changes are presented in this work. As research objects, there were 2 truck tires. These tires had different construction and as an effect they had different properties, including cornering resistance and relaxation length. Tires tests have been performed using the dynamometric trailer, fixed on the drum facility. During testing, the wheel side cornering angle oscillatory changes have been forcing, with frequency of 2 and 4Hz, in wide scope of the wheel rolling velocity. Chosen measurement results of lateral reaction force have been presented in time domain. Values of the lateral force oscillations amplitude and lateral force time lag have been observed. Amplitude and phase dynamic characteristics of tires, using FFT transformation, have been determined. A decrease of the lateral force oscillations amplitude and an increase of the lateral force phase shift with increasing input signal frequency, as the wheel cornering angle oscillations, have been shown. Conclusions about influence of the wheel rolling speed on tire relaxation effects in dynamic conditions have been formulated. There have been revealed that different properties of different tires types, described in quasistatic conditions have an influence on their behaviour also in dynamic conditions. Lower tire cornering resistance can decrease an amplitude of lateral force oscillations whilst greater tire relaxation length can decrease an amplitude and also can increase phase shift of lateral force oscillations.

Słowa kluczowe

EN

pneumatic tire; tire relaxation; tire cornering stiffness

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 1
• Strony: 325--332
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Luty W.

• Warsaw University of Technology, Faculty of Transport Koszykowa 75, 00-662 Warsaw, Poland tel.: [phone],

Bibliografia

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• [3] Van Zanten, A., Erhardt, R., Lutz, A., Measurement and simulation of transients in longitundial and lateral tire forces, SAE Paper 900210 1990.
• [4] Luty, W., Analiza właśiwości ogumienia samochodu ciężarowego w nieustalonym stanie znoszenia bocznego, Zeszyty Naukowe Politechniki Warszawskiej 3(38/00).
• [5] Luty, W., Prochowski, L., Szurkowski, Z., Stanowisko do badań ogumienia dużego rozmiaru. VII Międzynarodowe Sympozjum IPM, Warszawa-Rynia 1999.
• [6] Luty, W., Analiza nabiegania ogumienia nowych konstrukcji podczas toczenia ze znoszeniem bocznym w quasi-statycznych warunkach ruchu, Praca zbiorowa pt. Analiza wpływu ogumienia nowych konstrukcji na bezpieczeństwo samochodu w ruchu krzywoliniowym, Wojskowa Akademia Techniczna, ISBN978-83-61486-21-3, Warszawa 2009.
• [7] Luty, W., An analysis of tire relaxation process during dynamic changes of cornering agle, Journal of KONES Powertrain and Transport, Vol. 16 No. 1, 2009.
• [8] Georg Rill, First order tire dynamics, III European Conference on Computational Mechanics, Solids, Structures and Coupled Problems in Engineering C.A. Mota Soares et.al. (eds., Lisbon, Portugal, 5–8 June 2006.
• [9] Pacejka, H. B., Tyre and Vehicle Dynamics, Oxford: Butterworth-Heinemann 2002.
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• [11] Luty, W., Wysocki, T., Przyczepa dynamometryczna do badań dynamicznych ogumienia, VII Międzynarodowe Sympozjum IPM, Warszawa-Rynia 1999.
• [12] Gidlewski, M, Luty, W., Porównanie właściwości koła pojedynczego i koła bliźniaczego w aspekcie współpracy z podłożem w ruchu krzywoliniowym samochodu, Politechnika Radomska, Prace Naukowe, Transport nr 1(17) 2003.