Influence of friction characteristic on the performance of chain CVT drives

• Autorzy: Srivastava N. , Haque T.
• Języki publikacji: EN

Abstrakty

EN

A continuously variable transmission (CVT) is an emerging automotive transmission technology that offers a continuum of gear ratios between desired limits. A chain CVT falls under the category of friction-limited drives as its performance and torque capacity rely significantly on the friction characteristic of the contact patch between the chain and the pulley. The present research focuses on developing models to understand the influence of different friction characteristics on the dynamic performance of a chain CVT drive. Since the friction characteristic of the contact patch may vary in accordance with the loading and design configurations, it is crucial to study the influence of friction characteristic on the performance of a CVT. A detailed planar multibody model of a chain CVT is developed in order to accurately capture the dynamics characterized by the discrete structure of the chain, which causes polygonal excitations in the system. Friction between the chain link and the pulley sheaves is modeled using different mathematical models which account for different loading scenarios. The mathematical models, the computational scheme, and the results corresponding to different loading scenarios are discussed. The results discuss the influence of friction characteristics on the dynamic performance, the axial force requirements, and the torque transmitting capacity of a chain CVT drive.

Słowa kluczowe

EN

continuously variable transmission; CVT; chain; friction characteristics; stribeck; pulley flexibility; lubrication

• 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: 2006
• Tom: Vol. 13, No. 2
• Strony: 405--419
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Srivastava N.

autor

Haque T.

• 106 EIB, Flour Daniel Building, Department of Mechanical Engineering Clemson University Clemson SC 29634, USA tel.:[phone], fax: [phone],

Bibliografia

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