Investigation of Self Excited Torsional Vibrations of Different Configurations of Automatic Transmission Systems during Engagement

Autor:	Abd Elmaksoud Eid O. A., El Demerdash S M., Rabeih E M., Abdel-halim N A
Rok vydání:	2011
Předmět:	Engineering Torsional vibration Automatic transmission business.industry Band brake Structural engineering law.invention Vibration Automatic transmission system law Torque Clutch business Friction torque
Zdroj:	Engineering. :1171-1181
ISSN:	1947-394X 1947-3931
DOI:	10.4236/eng.2011.312146
Popis:	The vehicle drive line system is subjected to torsional vibration from different sources of the system such as; engine fluctuating torque, Hook’s joint and the final drive. However, the essential source is the friction torque induced in the friction elements, during their engagement. In the automatic transmission system, the planetary gear set includes several friction elements such as; clutch, band brakes, and one way clutch. During the engagement, severe torsional vibration is induced by friction which is noticeable by the passengers in the form of what so called vehicle shunt. In present paper, a torsional vibration model for Drive Line (DL) system includes three different configurations of automatic transmission is constructed. A computer program using MATLAB subroutines is implemented to obtain the system response. Effect of system parameters on the dynamic behavior and stability has been investigated. The system damping and the trend of the friction coefficient have an essential effect on the dynamic behavior and stability of the system. The system response is now predictable with change of the system parameters which opens up the opportunity in future to control the vibration level.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7b7b9025c30112a0606d72489e7bee63 https://doi.org/10.4236/eng.2011.312146 Zobrazit plný text záznamu