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Experimental Characterization and Modeling of Dry Dual Clutch Thermal Expansion Effects (CROSBI ID 194888)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Hoić, Matija ; Herold, Zvonko ; Kranjčević, Nenad ; Deur, Joško ; Ivanović, Vladimir Experimental Characterization and Modeling of Dry Dual Clutch Thermal Expansion Effects // SAE International journal of passenger cars. Mechanical systems, 6 (2013), 2; 775-785. doi: 10.4271/2013-01-0818

Podaci o odgovornosti

Hoić, Matija ; Herold, Zvonko ; Kranjčević, Nenad ; Deur, Joško ; Ivanović, Vladimir

engleski

Experimental Characterization and Modeling of Dry Dual Clutch Thermal Expansion Effects

Thermal expansion of a clutch pack with position-controlled actuation can affect the accuracy of clutch normal torque control, because it causes an increase of the clutch normal force for the given actuator position. The paper presents an experimental characterization and mathematical modeling of the dry dual clutch thermal expansion effects. The experimental data have been collected by using a clutch/transmission test rig. The acquired data point to two separate, mutually opposite thermal expansion effects. The first effect relates to increase of the clutch clearance with temperature growth, while the second one includes decrease of press plate and engagement bearing positions for a given clutch torque and a rising temperature (i.e. the clutch torque rises with temperature growth and a constant actuator position). In order to explain and describe these two effects, a geometry analysis of the clutch, focused on thermal expansion, is carried out. Based on the analysis results, a simplified thermal expansion model is developed, extended with temperature dependence of clutch friction coefficient, and experimentally validated.

dry dual clutch; thermal expansion; experimental characterization; modeling

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nije evidentirano

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Podaci o izdanju

6 (2)

2013.

775-785

objavljeno

1946-3995

1946-4002

10.4271/2013-01-0818

Povezanost rada

Strojarstvo

Poveznice
Indeksiranost