Application of a Tensioner on a Chain Drives Multibody Model

Cândida Pereira; Jorge Ambrósio; Amilcar Ramalho

doi:10.4028/www.scientific.net/AMM.394.140

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Large Eddy Simulation of Flow Past Circular Cylinder Based on the Least Square Meshless Method
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Stress Concentration Factors in Auxetic Rods and Plates
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Application of a Tensioner on a Chain Drives Multibody Model
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The Periodic Solution and Numerical Simulations for Iced Cable System
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Reanalysis of Modified Dynamic System in the Frequency Domain
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Identification of Parameter Matrices Using Residual Force Vector
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 394Application of a Tensioner on a Chain Drives...

Application of a Tensioner on a Chain Drives Multibody Model

Abstract:

The dynamics of chain drives is a complex issue due to the polygonal effect and the multiple successive impacts that take place. The combined effect of these phenomena leads to discontinuities in the systems velocities giving rise to transversal and longitudinal vibrations on the chain spans. To investigate the pretension effect on the drive dynamics, a tensioner is applied to a generalized chain drives multibody model developed and implemented in a computational code by the authors. In this model, the clearance revolute joints formulation is used to handle the dry contact between all drive components. The pretension changes the characteristics of the contact pairs by enforcing a continuous contact with only a small number of contact losses. When no pretension is used, the contact is characterized by a sequence of short duration contacts. The strands of the pretensioned chain vibrate with higher frequency but smaller amplitude in comparison to the non-pretensioned system.

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Periodical:

Applied Mechanics and Materials (Volume 394)

Pages:

140-143

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.394.140

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Online since:

September 2013

Authors:

Cândida Pereira, Jorge Ambrósio, Amilcar Ramalho

Keywords:

Chain Drives, Clearance Joints, Dynamic, Multibody Models, Pretension, Vibration

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