Experimental Testing and Modeling of Automotive Automatic Belt Tensioners

Zhao, Jiaxin; Barker, Clark R.; Oliver, Larry R.; Breig, William F.; Edson, Joey

doi:10.4271/980839

Cited by 14 publications

(20 citation statements)

References 3 publications

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“…The experimental methods for measuring the performances of the serpentine belt-driven systems are proposed in previous works. [20][21][22][23] Č epon et al 20 and Shangguan and Zeng 22 present experimental techniques for measuring belt longitudinal static stiffness, longitudinal dynamic stiffness and damping coefficient, bending stiffness, and friction coefficient between a pulley and a belt. The dynamic performances of a tensioner are measured under different excitation amplitudes and frequencies, and a model is proposed to characterize the measured dynamic characteristics.…”

Section: Literature Reviewmentioning

confidence: 99%

“…The dynamic performances of a tensioner are measured under different excitation amplitudes and frequencies, and a model is proposed to characterize the measured dynamic characteristics. 21 Also, the hysteretic behavior of a belt tensioner is measured and modeled in Michon et al 23 Modeling of accessory drive systems with ISG. Several studies have been conducted to improve performances and efficiency of the starter generator.…”

Section: Literature Reviewmentioning

confidence: 99%

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Modeling and dynamic analysis of accessory drive systems with integrated starter generator for micro-hybrid vehicles

Xiao

Shangguan

Deng

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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Belt-driven integrated starter generator system is a hybrid transmission that resembles the conventional serpentine belt-driven system. The system contains an integrated starter generator that performs a “start-stop” function on the engine. A two-pulley tensioner mechanism is attached to the integrated starter generator to maintain belt tension. The objectives of this paper are to develop modeling and calculation methods for estimating the performances of the belt-driven integrated starter generator system and to investigate the influence of damping of the two-pulley tensioner on vibration and shock. A systematic modeling and analysis method is proposed. The modeling method for the two-pulley tensioner is distinguished from any existing studies, which are generic for modeling the tensioner in belt-driven integrated starter generator systems with different layouts. A typical belt-driven integrated starter generator system is presented and a model is established to predict the dynamic response of rotational vibrations of pulleys, tensioner motions, and tension fluctuations. A parametric analysis is conducted to evaluate the two-pulley tensioner parameters with respect to their impact on the performances of the belt-driven integrated starter generator system.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Modeling and dynamic analysis of accessory drive systems with integrated starter generator for micro-hybrid vehicles

Xiao

Shangguan

Deng

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

“…The spring provides the necessary working torque of the tensioner for the belt tensioning, while the damping elements are utilized to reduce and absorb the belt vibrations [7]. Considering the damping element, the working torque and imposed angle of the tensioner arm are related through a hysteretic loop within loading and unloading operations [7,8].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling of the Belt Drive System with an Equivalent Tensioner Model

Long

Wen-long

Xia

et al. 2021

J. Vib. Eng. Technol.

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Background In the existing studies, the hysteretic model of tensioner is applied in analysis of a belt drive system which can improve the computational accuracy. But the computational efficiency is low and not suitable for system optimization. Purpose In this paper, an approach is presented to simplify the tensioner's hysteretic model into an equivalent stiffness and damping which is used for improving the computational efficiency of vibration responses of the belt drive system. Method A simplified model and computation method of a belt drive system is established. The hysteretic model of a belt tensioner consists of a linear stiffness and viscous damping based on the averaging energy method to simplify the hysteretic parameters and improve the computational efficiency. The equivalent linear stiffness and damping of the tensioner are estimated using an iterative technique. A timing belt drive system is considered as a case study. The belt system's vibration responses are obtained and compared with the measured results to evaluate the performance of the presented approach. Results and conclusionThe computational results are compared with a previously published method, and the difference between the proposed method (Method I) and the previously published method (Method II) is discussed. The presented method has the following merits: (1) The linearization of tensioner's hysteretic model can improve the computational efficiency greatly with an acceptable computational accuracy. (2) The semi-analytic method which is used to derive the system equations can further reduce the amount of computation. It is suitable for parameter optimization of system.

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“…[6][7][8] Now some researchers focused on the model of the dynamic characteristics for tensioner hysteresis, and the identification of model parameters of tensioner. Zhao et al 9 developed a mathematical model to describe the hysteretic behavior of a spring-load tensioner. The model was validated and model parameters were identified under different excitations.…”

Section: Introductionmentioning

confidence: 99%

“…In the previous studies, [5][6][7][8][9][10][11][12][13][14][15][16][17][18] the research works are focused on the parameters identification and the physical model of tensioner. The analytical model stated in Zhu et al 5 is suitable for a specific form, and the method for obtaining the hysteretic behavior of tensioner in a dynamic manner is not given.…”

Section: Introductionmentioning

confidence: 99%

Methods for estimating hysteretic behavior and vibration responses of a timing belt tensioner

Long

Yin

Zhao

et al. 2019

Advances in Mechanical Engineering

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An automatic tensioner that consists of a torsional spring and friction damping elements is widely used in belt drive system. The relation of the applied torque versus the imposed angle of tensioner during loading and unloading processes is described as a hysteretic loop. An analytical model is established for estimating the hysteretic behavior of a tensioner, and measurements for hysteretic loop in quasi-static and dynamic excitation are carried out to validate the analytical model. Taking one engine timing belt drive system as a studying example, the method and the procedure for estimating vibration responses of the nonlinear tensioner are given. An iterative algorithm for predicting the accurate equivalent viscous damping of tensioner is carried out in analyzing a belt drive system. The vibration responses of tensioner are validated by the measurement of timing belt drive system. The developed method presented in this article is useful for predicting the hysteretic behavior of tensioner, vibration responses, and the parameters optimization of a belt drive system.

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Experimental Testing and Modeling of Automotive Automatic Belt Tensioners

Cited by 14 publications

References 3 publications

Modeling and dynamic analysis of accessory drive systems with integrated starter generator for micro-hybrid vehicles

Modeling and dynamic analysis of accessory drive systems with integrated starter generator for micro-hybrid vehicles

Dynamic Modeling of the Belt Drive System with an Equivalent Tensioner Model

Methods for estimating hysteretic behavior and vibration responses of a timing belt tensioner

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