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Ambiguities on the hamiltonian formulation of the free falling particle with quadratic dissipation
(2011)
For a free falling particle moving in a media which has quadratic velocity force effect on the particle, two equivalent constants of motion, with units of energy, two Lagrangians, and two Hamiltonians are deduced. These ...
Effect of a frictional force on the Fermi-Ulam model
(Iop Publishing Ltd, 2014)
Insight into the dynamic behaviour of the Van der Pol/Raleigh oscillator using the internal stiffness and damping forces
(2016-10-03)
The van der Pol oscillator is an archetypal nonlinear oscillator that has been studied for many years. It is a self-sustaining oscillator that vibrates in a limit cycle, and has the characteristic that it generates energy ...
Particle image velocimetry and computational fluid dynamics applied to study the effect of hydrodynamics forces on animal cells cultivated in Taylor vortex bioreactor
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQCâmpus São Carlos, 2016-03-28)
Taylor-Vortex reactor (TVB) is fast becoming the next bioreactor to culture animal cells due to milder shear and homogeneous flow structures through-out the bioreactor in comparison to the traditional stirred vessels. ...
Algunas Recomendaciones para el Refuerzo Sísmico de Edificios, empleando Disipadores de Energía
(Universidad Nacional Autónoma de México. Dirección General de Cómputo y de Tecnologías de Información y Comunicación. Revista Digital Universitaria, 2003-03-31)
Se dan algunas recomendaciones sobre el diseño sísmico para el refuerzo de edificios con disipadores de energía, y se identifican estudios que es necesario realizar sobre este tema. El artículo es congruente con las ...
Conseqüencias do arrasto viscoso no modelo Fermi-Ulam
(Universidade Estadual Paulista (Unesp), 2008-02-11)
Estudamos, neste trabalho, algumas propriedades dinâmicas do Modelo do Acelerador de Fermi, em três versões distintas: uma versão conservativa e duas versões dissipativas. A primeira versão dissipativa com amortecimento ...
Conseqüencias do arrasto viscoso no modelo Fermi-Ulam
(Universidade Estadual Paulista (Unesp), 2008-02-11)
Estudamos, neste trabalho, algumas propriedades dinâmicas do Modelo do Acelerador de Fermi, em três versões distintas: uma versão conservativa e duas versões dissipativas. A primeira versão dissipativa com amortecimento ...
Effects of Variations in Nonlinear Damping Coefficients on the Parametric Vibration of a Cantilever Beam with a Lumped Mass
(HINDAWI PUBLISHING CORPORATION, 2008)
Uncertainties in damping estimates can significantly affect the dynamic response of a given flexible structure. A common practice in linear structural dynamics is to consider a linear viscous damping model as the major ...
Implementação, validação e aplicação de um modelo de força de lubrificação em simulações CFD-DEM de um leito fluidizado
(Universidade Federal de São CarlosUFSCarCâmpus São CarlosEngenharia Química - EQ, 2020-12-15)
Fluidized bed reactors are commonly used in chemical industry applications, especially in reactions involving heterogeneous catalysis. These equipments have been extensively studied and literature describing its macroscopic ...
Hydroelastic stationary problem on tsunami waves generation
(2006)
For a relativistic particle under a constant force and a linear velocity dissipation force, a constant of motion is found. Problems are shown for getting the Hamiltonian of this system. Thus, the quantization of this system ...