Finite element analysis of automotive cushion discs

Sfarni, Samir; Bellenger, Emmanuel; Fortin, Jérôme; Malley, Matthieu

doi:10.1016/j.tws.2008.08.010

Cited by 14 publications

(9 citation statements)

References 24 publications

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“…FKN represents the stiffness of a fictive spring positioned between the two surfaces in contact. 15 Its default value is 1 but it could range 16 between 0.01 and 100. A high value of FKN gives good solution accuracy but can lead to ill conditioning of the global stiffness matrix, causing convergence difficulty.…”

Section: Finite Element Modelmentioning

confidence: 99%

“…A high value of FKN gives good solution accuracy but can lead to ill conditioning of the global stiffness matrix, causing convergence difficulty. [15][16][17] On the other hand, a too low contact stiffness value can lead to a poor solution. 15 The FTOL default value is 0.1 and, if it is too small, i.e.…”

Section: Finite Element Modelmentioning

confidence: 99%

“…[15][16][17] On the other hand, a too low contact stiffness value can lead to a poor solution. 15 The FTOL default value is 0.1 and, if it is too small, i.e. small penetration, the FE analysis can fail.…”

Section: Finite Element Modelmentioning

confidence: 99%

See 2 more Smart Citations

Modelling the cushion spring characteristic to enhance the automated dry-clutch performance: The temperature effect

Cappetti

Pisaturo

Senatore

2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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The cushion spring plays an important role in an automotive dry-clutch system. It strongly influences the clutch torque transmission from the engine to the driveline through its non-linear load–deflection curve. Therefore, knowledge of the cushion spring compression behaviour is crucial to improve the gearshift performance in an automated manual transmission. Furthermore, the cushion spring compression behaviour is influenced by the temperature because of the frictional heat generation of the clutch facings with the flywheel and the pressure plate surfaces during the engagement phase. In this paper an analysis of the load–deflection curve, taking into account the thermal load to which it is subjected, of a typical passenger car cushion spring is proposed. Six temperatures, in addition to room temperature, were analysed to investigate how the cushion spring load–deflection curve depends on the temperature.

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Section: Finite Element Modelmentioning

confidence: 99%

Section: Finite Element Modelmentioning

confidence: 99%

See 1 more Smart Citation

Modelling the cushion spring characteristic to enhance the automated dry-clutch performance: The temperature effect

Cappetti

Pisaturo

Senatore

2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

“…Tikhomolov and Fidlin 7 also developed a multi-body model to investigate the issue of dynamic disengagement, which occurs when the clutch is in the disengaged position. With regard to the static behaviour, Sfarni et al 8 proposed a finite element model for predicting the characteristic load-deflection curve of a friction disc. Nam et al 9 constructed a finite element model of a diaphragm spring to analyse the axial stiffness of this component.…”

Section: Introductionmentioning

confidence: 99%

“…However, very few investigations of clutch systems have been carried out with this method. The finite element models that have been used for this purpose involve only a single component or a pair of clutch elements, such as those cited above in the work by Oday and Schlattmann, 4 Sfarni et al 8 and Nam et al 9 In this paper, a three-dimensional finite element model of a manual-transmission automotive clutch is developed, for future study of axial vibrations. The model has to be able to simulate the axial static and dynamic characteristics of the complete clutch for the entire engagement stroke.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional finite element model of an automotive clutch for analysis of axial vibrations

Aktir

Brunel²,

Dufrenoy³

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part D:

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International audienceRecent progress made in making clutches lightweight and in reducing torsional vibrations has led to the emergence of new vibroacoustic phenomena due to the out-of-plane vibrations of the clutch. These vibrations are generated along the axial direction of the clutch system. Contrary to torsional vibrations that can be simulated by unidirectional lumped-mass models, axial vibrations require a three-dimensional approach to describe the dynamics of the components. Finite element models are widely used to design or optimize the components of the clutch. However, no finite element model of a complete clutch has been developed for analysis of axial vibrations. The main difficulties are the complexity of the system, the great number of non-linearities, the difficulties of instrumentation for validation and the variation in the behaviour along the engagement stroke. This paper provides a validated three-dimensional finite element model of the dynamic behaviour of the clutch for studying axial vibrations. The model simulates the axial static and dynamic characteristics of the clutch. Model accuracy and validation are achieved by comparing the numerical results with the experimental data. The results show the crucial parameters to consider in order to reproduce correctly the non-linear axial behaviour and the dynamic characteristics of the clutch system, namely the orthotropic behaviour of the friction material and the geometrical parameters of some components that should be detailed. Validation is carried out on each component and for the system assembly by dedicated experiments and instrumentation

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Knowledge Acquisition from ANSYS Analyzed Data for Driving Head of Hydraulic Drill

Liu

2012

Advances in Intelligent and Soft Computing

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Finite element analysis of automotive cushion discs

Cited by 14 publications

References 24 publications

Modelling the cushion spring characteristic to enhance the automated dry-clutch performance: The temperature effect

Modelling the cushion spring characteristic to enhance the automated dry-clutch performance: The temperature effect

Three-dimensional finite element model of an automotive clutch for analysis of axial vibrations

Knowledge Acquisition from ANSYS Analyzed Data for Driving Head of Hydraulic Drill

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