Steering system freeplay and friction in vehicle dynamic models and simulations

Żardecki, D.

Artykuł - szczegóły

Tytuł artykułu

Steering system freeplay and friction in vehicle dynamic models and simulations

Autorzy

Żardecki D.

Wybrane pełne teksty z tego czasopisma

Identyfikatory

Warianty tytułu

Luz i tarcie układu kierowniczego w modelowaniu i symulacji dynamiki samochodu

Języki publikacji

Abstrakty

This paper presents in outline an original method of modelling and simulation studies of a car nonlinear dynamics including freeplay and friction in a steering system. The description of freeplay and friction in a steering mechanism bases on the luz(...) and tar(...) piecewise - linear projections. For description a vehicle movement dynamics was taken into account among other things a roll-of-body effect, a transient comering resistance with tire relaxation phenomenon, an aerodynamics and so on. Different structures of steering system - 2WS (mechanical, as well as, power assisted) and 4WS were studied. Simulations concemed the standard ECE and ISO road tests. Elaborated models permitted to simulate peculiar freeplay and frictional effects in steering systems, e.g.: the stick-slip phenomenon.

W artykule przedstawiono w ogólnym zarysie nową metodę modelowania i symulacji nieliniowej dynamiki samochodu z uwzględnieniem luzu i tarcia w układzie kierowniczym. W modelowaniu luzu i tarcia w mechanizmie kierowniczym wykorzystano koncepcję przedziałami - liniowych odwzorowań luz(...) i tar(...). W opisie dynamiki ruchu pojazdu uwzględniono przechył boczny, opór znoszenia ze zjawiskiem relaksacyjnym opony, aerodynamikę itd. Badaniami objęto różne struktury układu kierowniczego - 2WS (mechaniczny i ze wspomaganiem) oraz 4WS. Badania symulacyjne dotyczyły standardowych testów drogowych przewidzianych w normach i regulaminach ECE oraz ISO. Opracowane modele pozwoliły przeprowadzić badania symulacyjne osobliwych zjawisk (np. stick-slip), występujących w układach kierowniczych w obecności luzu i tarcia.

Słowa kluczowe

steering system friction vehicle dynamic

układ kierowniczy tarcie dynamika samochodu

Wydawca

Warsaw University of Technology, Faculty of Transport

Czasopismo

Archives of Transport

Rocznik

2005

Tom

Vol. 17, iss.1

Strony

65--95

Opis fizyczny

Bibliogr. 27 poz., rys.

Twórcy

autor

Żardecki D.

Automotive Industry Institute PIMOT, 55 Jagiellońska St., 03-301 Warsaw, Poland

Bibliografia

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10. Lozia Z.: Vehicle Dynamics and Motion Simulation Versus Experiment. SAE Paper 980220. SAE Transactions 1998, Section 6, Vol. 107, 1998, p. 344-360.
11. Lozia Z., Stegienka I., Żardecki D.: Computer Simulation of the Car Movements with Regard to Backlash and Friction in the steering system. Proceedings of Conference AUTOPROGRES ‘1998, Ed. PIMOT, 1998, T. 1, p. 33-42 (in Polish).
12. Lozia Z., Żardecki D.: Vehicle Dynamics Simulation with Inclusion of Freeplay and Dry Friction in Steering System. SAE Paper 2002-01-0619. SAE 2002, Transactions. Journal of Passenger Car - Mechanical Systems, 2002, p. 907-923.
13. Lozia Z., Żardecki D.: Mathematical Models and Simulation of Stick-Slip Processes in a Car Steering System. Proceedings of the 21-st 1CTAM Congress, 2004 (to be published soon).
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18. Wohnhaas A. T.: Simulation von Kraftfahrzeug-Lenkungen unter besonderer Bercksichtigung von Reibung und Spiel. Dissertation, IVK University Stuttgart, 1994.
19. Żardecki D.: Simulation Analysis of steering System Dynamics with Regard to Backlash and friction. Proceedings of V Conference “Simulation Studies in Automotive Engineering”, Ed. Lublin University of Technology, 1993, p. 387-392 (in Polish).
20. Żardecki D.: Mathematical model of car steering system dynamics with regard to gearbox backlash and friction. Proceedings of Conference AUTOPROGRES ‘1998,Ed. PIMOT, 1998, T.1, p.43-52 (in Polish).
21. Żardecki D.: The Structural Sensitivity Analysis of Mathematical Model of Car Steering System with Backlash and Friction. Proceedings of Conference KONMOT-AUTOPROGRES ‘2000. Teka Komisji Naukowo-Problemowej Motoryzacji PAN, No. 21, 2000, p. 73-82 (in Polish).
22. Żardecki D.: The luz(...) and tar(...) projections - a theoretical background and an idea of application in a modeling discrete mechanical systems with backlashes or frictions. Biuletyn WAT, Vol. L, No. 5, 2001, p. 125-160 (in Polish).
23. Żardecki D.: Simulation Studies of stick-slip process in Car Steering System. Proceedings of III Conference “Problems of safety in Road Vehicles”. Zeszyty Naukowe Politechniki Świętokrzyskiej, Mechanika, 2002, p. 305-312 (in Polish).
24. Żardecki D.: Problems of Modeling and Simulation of Steering System Dynamics - a Survey. Proceedings of Conference KONMOT-AUTOPROGRES ‘2004, Czasopismo Techniczne. Mechanika, z. 7-M, 2004, p. 731-740 (in Polish).
25. Żardecki D.: Computational methods and software for studies a car dynamics including freeplay and friction problems. Report of KBN, Grant No. 9T12C07108, 1998 (in Polish).
26. Żardecki D.: Mathematical modeling and simulation of nonlinear vibrations in a car steering system with freeplay and friction. Report of KBN, Grant No. 9T12C05819, 2002 (in Polish).
27. Automotive Handbook. Robert Bosh GmbH, 3-ed., 1993.

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-article-BPZ3-0004-0016