Nonideal Power Source
Mostrando 1-6 de 6 artigos, teses e dissertações.
-
1. Impact control of structural vibrations excited by nonideal loads. / Controle por impacto de vibrações estruturais excitadas por carregamentos não-ideais.
We present mathematical models with few degrees of freedom for the study of nonlinear structural vibrations excited by a non ideal energy source, with impact damping, for two applications: a portal frame that supports an electric motor and a tower structure supporting an aeolian turbine. We consider that there is interaction between the energy supply and the
Publicado em: 2006
-
2. Vibrations of a parametrically and self-Excited system with ideal and non-ideal energy sources
Interactions between parametric, self-, and externally excited vibrations are analysed in this paper. The physical model of the vibrating system consists of a non-linear spring with periodically changing stiffness of Mathieu type and a non-linear damping described by Rayleigh's term. This system is additionally forced by a harmonic force (ideal system), or b
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-12
-
3. On non-ideal and non-linear portal frame dynamics analysis using bogoliubov averaging method
We apply the Bogoliubov Averaging Method to the study of the vibrations of an elastic foundation, forced by a Non-ideal energy source. The considered model consists of a portal plane frame with quadratic nonlinearities, with internal resonance 1:2, supporting a direct current motor with limited power. The non-ideal excitation is in primary resonance in the o
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2002-11
-
4. Escape in a nonideal electro-mechanical system
In this work a particular system is investigated consisting of a pendulum whose point of support is vibrated along a horizontal guide by a two bar linkage driven from a DC motor, considered as a limited power source. This system is nonideal since the oscillatory motion of the pendulum influences the speed of the motor and vice-versa, reflecting in a more com
Journal of the Brazilian Society of Mechanical Sciences. Publicado em: 2002-11
-
5. Analise não linear de sistemas dinamicos holonomos não ideais / Nonlinear anaIysis of non ideals holonomic dynamical systems
Several times the mechanical systems join the behavior described by laws of motion to the dynamic of their operation. Their solution pass by adopted simplified hypotheses in order to obtain a representative and helpful mathematical model. When the energy source used in the bringing to the action of the motion has limited power, i.e., there is not sufficient
Publicado em: 2002
-
6. Teoria de sistemas vibratorios aporticados não-lineares e não-ideais
This work concerns the computational and analytical study of the non-linear dynamic behavior of a portal frame, excited by a non-ideal source - an unbalanced direct current electric motor of limited power. A problem whose mathematical model represents a simplified system (the characteristic of the motor in stationary state) and complete (the electric equatio
Publicado em: 2002