Natural frequencies of a rotating viscoelastic shell

• Autorzy: Gałkowski Z. , Pietrzakowski M. , Tylikowski A.
• Języki publikacji: EN

Abstrakty

EN

The paper deals with a simply supported cylindrical shell rotating about its longitudinal axis. The shell is modelled according to the thin shell theory and small deflection assumption. The equations of relative motion are derived considering the acceleration including the Coriolis component. The analysis is focused on the passive damping effect created by viscoelastic material. The complex eigenvalue problem is formulated and solved. The results show the influence of material damping property on the modal equivalent damping parameter for variations in the angular velocity of the shell. The relations between the modal damping parameter and velocity of rotation for different retardation time (loss factor) values are also presented.

Słowa kluczowe

EN

cylindrical shell; shell; viscoelastic material; loss factor; vibration

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Mechanics and Mechanical Engineering
• Rocznik: 1999
• Tom: Vol. 3, nr 2
• Strony: 113--120
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Gałkowski Z.

• Warsaw University of Technology Institute of Machine Design Fundamentals Narbutta 84, 02-524 Warszawa, Polska Phone [phone]

autor

Pietrzakowski M.

• Warsaw University of Technology Institute of Machine Design Fundamentals Narbutta 84, 02-524 Warszawa, Polska Phone [phone]

autor

Tylikowski A.

• Warsaw University of Technology Institute of Machine Design Fundamentals Narbutta 84, 02-524 Warszawa, Polska Phone [phone]