Comptes Rendus
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Modal energetic analysis and dynamic response of worm gear drives with a new developed dynamic model
Ala Eddin Chakroun1, 2  ; Ahmed Hammami2  ; Ana De-Juan1  ; Fakher Chaari2   ; Alfonso Fernandez1  ; Fernando Viadero1  ; Mohamed Haddar2 
1 Department of Structural and Mechanical Engineering, University of Cantabria, Spain
2 Mechanics, Modelling and Production Laboratory, National School of Engineers Sfax, Tunisia
Comptes Rendus. Mécanique, Volume 349 (2021) no. 2, pp. 241-258.

In order to investigate the behaviour of worm drives, a new dynamic model, composed of two blocks, is established and used to extract numerical results. The tooth deflection of the worm drive, bearings, and wheels inertias are taken into consideration. Newmark solving method is applied to solve motion equations. The state of contact of teeth is what enables these signals to manifest themselves. Modal analysis is developed to investigate the different natural modes of the model. Furthermore, modal energetic analysis is used to understand the distribution of strain and kinetic energies. It is also applied to classify natural models into “teeth modes” and “bearing modes”. These two modes constitute two different frequency bands. The dynamic coefficient is measured simultaneously with the gradual increase of the turning speed of the motor. This allows for the evaluation of the overload of the system.

Reçu le :
Révisé le :
Accepté le :
Publié le :
DOI : 10.5802/crmeca.80
Mots clés : Dynamic model, Natural frequencies, Natural modes, Worm, Worm gear, Stiffness
Ala Eddin Chakroun 1, 2 ; Ahmed Hammami 2 ; Ana De-Juan 1 ; Fakher Chaari 2 ; Alfonso Fernandez 1 ; Fernando Viadero 1 ; Mohamed Haddar 2

1 Department of Structural and Mechanical Engineering, University of Cantabria, Spain
2 Mechanics, Modelling and Production Laboratory, National School of Engineers Sfax, Tunisia
Licence : CC-BY 4.0
Droits d'auteur : Les auteurs conservent leurs droits 
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     title = {Modal energetic analysis and dynamic response of worm gear drives with a new developed dynamic model},
     journal = {Comptes Rendus. M\'ecanique},
     pages = {241--258},
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Ala Eddin Chakroun; Ahmed Hammami; Ana De-Juan; Fakher Chaari; Alfonso Fernandez; Fernando Viadero; Mohamed Haddar. Modal energetic analysis and dynamic response of worm gear drives with a new developed dynamic model. Comptes Rendus. Mécanique, Volume 349 (2021) no. 2, pp. 241-258. doi : 10.5802/crmeca.80. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.80/

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