Numerical Study on Elastic Deformation of Belt in Power Transmission of Belt Drive System

ABSTRACT Most of Automotive Engines use belt drive for power transmission. The amount of power transmitted to any given application depends on many parameters such as the elastic nature of shafts pulleys, belt materials etc. The change of power transmission from IC engine crankshaft to output shaft of application is dynamic in nature. Understanding rotational dynamic behaviour of each element in belt drive system plays important role. Considering the belt drive in diesel power generator, this paper addresses dynamic models developed each system between crank-shaft to alternator shaft. With the help of dynamic models the paper gives the dynamic characteristics of varies elements involved between crank to alternator. The sevearity of changing the values of stiffness of belt on power transmission is studied with the developed dynamic models. Simulink codes are exhaustively used for dynamic modelling of the belt drive system.