Journal ArticleDOI
Rotational response and slip prediction of serpentine belt drive systems
TLDR
In this article, a nonlinear model is developed which describes the rotational response of automotive serpentine belt drive systems, and the model is linearized about the equilibrium state and rotational mode vibration characteristics are determined from the eigenvalue problem governing free response.Abstract:
A nonlinear model is developed which describes the rotational response of automotive serpentine belt drive systems. Serpentine drives utilize a single {long) belt to drive all engine accessories from the crankshaft. An equilibrium analysis leads to a closedform procedure for determining steady-state tensions in each belt span. The equations of motion are linearized about the equilibrium state and rotational mode vibration characteristics are determined from the eigenvalue problem governing free response. Numerical solutions of the nonlinear equations of motion indicate that, under certain engine operating conditions, the dynamic tension fluctuations may be sufficient to cause the belt to slip on particular accessory pulleys. Experimental measurements of dynamic response are in good agreement with theoretical results and confirm theoretical predictions of system vibration, tension fluctuations, and slip.read more
Citations
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Journal ArticleDOI
Analysis and Control of Transverse Vibrations of Axially Moving Strings
TL;DR: In this article, the authors present the governing equations with large amplitude, and review progress on discretized or direct approximate analytical analyses and numerical approaches based on the Galerkin method or the finite difference method.
Journal ArticleDOI
Free Vibration of Serpentine Belt Drive Systems
TL;DR: In this paper, the authors focus on fundamental modeling issues that are central to predicting accessory drive vibration and present a prototypical drive, which is composed of a driven pulley, a driving pulley and a dynamic tensioner.
Journal ArticleDOI
Transient and Steady-State Dynamic Finite Element Modeling of Belt-Drives
Michael J. Leamy,Tamer M. Wasfy +1 more
TL;DR: In this article, a dynamic finite element model is developed for pulley belt-drive systems and employed to determine the transient and steady-state response of a prototypical belt drive.
Journal ArticleDOI
Nonlinear Periodic Response of Engine Accessory Drives With Dry Friction Tensioners
Michael J. Leamy,Noel C. Perkins +1 more
TL;DR: In this article, a multi-degree of freedom incremental harmonic balance method (IHB) was used to compute periodic solutions to the nonlinear equations of motion over a wide range of engine speeds.
Journal ArticleDOI
Stability and limit cycles of parametrically excited, axially moving strings
TL;DR: In this paper, an efficient discrete model of a parametrically excited translating belt is presented, based on the use of translating string eigenfunctions as a basis for a Galerkin discretization of the equations of transverse belt response.
References
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Journal ArticleDOI
Transverse oscillations in travelling strings
TL;DR: In this article, the authors examined the behavior of transverse standing waves for a uniform string which is pulled over two smooth supports under constant speed and tension and found that the frequency response to a simple harmonic disturbance and the envelope of the oscillations are similar to those of a clamped string, but the phase of oscillation varies from point to point so that the instantaneous configuration of the string is not a sine curve.
Related Papers (5)
Nonlinear Periodic Response of Engine Accessory Drives With Dry Friction Tensioners
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