Results 51 to 60 of about 34,399 (136)

On discretely entropy conservative and entropy stable discontinuous Galerkin methods

, 2018
High order methods based on diagonal-norm summation by parts operators can be shown to satisfy a discrete conservation or dissipation of entropy for nonlinear systems of hyperbolic PDEs.
Chan, Jesse
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Collocation and Galerkin Time-Stepping Methods [PDF]

We study the numerical solutions of ordinary differential equations by one-step methods where the solution at tn is known and that at t(sub n+1) is to be calculated.
Huynh, H. T.
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Free vibration analysis of functionally graded rectangular nanoplates considering spatial variation of the nonlocal parameter

Archives of Mechanics, 2017
We present a new nonlocal elasticity-based analysis method for free vibrations of functionally graded rectangular nanoplates. The introduced method allows taking into account spatial variation of the nonlocal parameter.
A. Alipour Ghassabi, S. Dag, E. Cigeroglu   +2 more
doaj   +1 more source

SIZE EFFECT ON THE SNAP-THROUGH AND PULL-IN INSTABILITY OF THE ELECTROSTATICALLY ACTUATED MICRO SHALLOW ARCH

Jixie qiangdu, 2019
The snap-through and pull-in instability of the electrostatically actuated micro shallow arches incorporating Casimir force was investigated based on the modified couple stress theory. The nonlinear governing equation and boundary conditions were derived
YUAN YanQi, KONG ShengLi, LU Fei
doaj  

Free vibration analysis of nanoscale spinning shafts based on Eringen's differential constitutive elastic model by using generalized differential quadrature method

Applied and Computational Mechanics
The free vibration behavior of spinning nanoshafts is critically examined through the framework of nonlocal elasticity. Combining the Euler-Bernoulli beam model with the Eringen’s nonlocal theory, this work formulates a scale-dependent mathematical model.
Belhadj A., Boukhalfa A., Belalia S. A.
doaj   +1 more source

Influence of Winkler-Pasternak Foundation on the Vibrational Behavior of Plates and Shells Reinforced by Agglomerated Carbon Nanotubes

Applied Sciences, 2017
This paper aims to investigate the effect of the Winkler-Pasternak elastic foundation on the natural frequencies of Carbon Nanotube (CNT)-reinforced laminated composite plates and shells. The micromechanics of reinforcing CNT particles are described by a
Damjan Banić, Michele Bacciocchi, Francesco Tornabene, Antonio J. M. Ferreira   +3 more
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Dynamic Analysis of Maneuvering Flexible Spacecraft Appendage Using Higher Order Sandwich Panel Theory

Latin American Journal of Solids and Structures
This paper is devoted to the vibration of rotating flexible spacecraft. The maneuver of the spacecraft is modeled by a constant torque input acting on the hub.
Milad Azimi, Morteza Shahravi, Eshagh Farzaneh Joubaneh   +2 more
doaj   +1 more source

Effects of Varied Shear Correction on the Thermal Vibration of Functionally-Graded Material Shells in an Unsteady Supersonic Flow

Aerospace, 2017
A model is presented for functionally-graded material (FGM), thick, circular cylindrical shells under an unsteady supersonic flow, following first-order shear deformation theory (FSDT) with varied shear correction coefficients. Some interesting vibration
Chih Chiang Hong
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Advanced Dynamic Vibration of Terfenol-D Control Law on Functionally Graded Material Plates/Cylindrical Shells in Unsteady Supersonic Flow

Algorithms
The thermal vibration of thick Terfenol-D control law on functionally graded material (FGM) plates/cylindrical shells in nonlinear unsteady supersonic flow with third-order shear deformation theory (TSDT) is investigated by using the generalized ...
Chih-Chiang Hong
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Algorithms based on DQM with new sets of base functions for solving parabolic partial differential equations in $(2+1)$ dimension

, 2016
This paper deals with the numerical computations of two space dimensional time dependent parabolic partial differential equations by adopting adopting an optimal five stage fourth-order strong stability preserving Runge Kutta (SSP-RK54) scheme for time ...
Kumar, P., Singh, B. K.
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