Vibrações e estabilidade paramétrica de cascas axissimétricas

The general problem of Dynamics of Elastic Bodies is presented, and the problems of dynamic response and stability of rotating axisyrnmetric shells, under a non-rotating load, are studied. Using a Fourier series expansion for the circunferential variable it is shown that this load generates a periodic excitation on the shell. Linear and non-linear transient responses are then obtained through a finite difference approximation in the time domain anda finite element discretization in the longitudinal direction. The steady-state periodic solution is determined. Its infinitesimal stability is studied and the first approximation of parametric resonance regions is explicity derived.

Grantor dc:publisher

Universidade Federal do Rio de Janeiro

Year dc:date.issued

1979

Author dc:creator

• Loula, Abimael Fernando Dourado

Advisor dc:contributor.advisor

• Bevilacqua, Luiz

• Cascas
• Vibrações
• Estabilidade estrutural

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Handle dc:identifier.uri

http://hdl.handle.net/11422/3579

OAI identifier oai:identifier

oai:pantheon.ufrj.br:11422/3579