Vietnam Journal of Mechanics
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The theoretical model of interaction between the baroclinic boundary layers of atmosphere and ocean
Vietnam Journal of Mechanics - Tập 2 Số 1 - 1980
Presenting the theoretical model of the atmospheric and oceanic baroclinic boundary layers by interaction.Baroclinic effects of two boundary layers are described by the horizontal gradients of air temperature and water density in the equations of motion.The formulas computing the characteristics of the oceanic atmospheric baroclinic boundary layers were obtained.The above 1heoretical model is the ......
Combination of collocation and factorization methods applied to numerical solutions of bubble-inside drop system dynamics
Vietnam Journal of Mechanics - Tập 21 Số 1 - 1999
In the paper the combination of collocation and factorization methods applied to numerical investigation of bubble-inside drop system dynamics is presented. Initially assumed bubble and drop have ellipsoidal forms. The initial relative location of the drop in the bubble is determined by equilibrium condition between drop weight and lift-force due to pressure distribution in gas/vapor. Calculations......
The oscillations of the dynamical systems with hysteresis characteristics excited stochastic parameter and forces. II
In this paper, the problem in [1] is continued studying. The some special cases of the general problem are considered. The beam with internal friction under stochastic forces is analyzed. In this example the influence of the hysteresis character in material and the parameter in the system on the oscillations of the beam are shown.
Analysis of some nonlinear deterministic oscillators using extended averaged equation approach
Vietnam Journal of Mechanics - Tập 27 Số 1 - 2005
The paper presents an application of extended averaged equation approach in investigating some nonlinear oscillation problems. The main idea of the method is briefly described and numerical simulations are carried out for some nonlinear oscillators. The results in analyzing oscillation systems with strong nonlinearity show advantages of the method.
Nonlinear analysis of buckling and postbuckling for axially compressed functionally graded cylindrical panels with the Poisson's ratio varying smoothly along the thickness
Vietnam Journal of Mechanics - Tập 34 Số 1 - 2012
In this paper an approximate analytical solution to analyze the nonlinear buckling and postbuckling behavior of imperfect functionally graded panels with the Poisson's ratio also varying smoothly along the thickness is investigated. Based on the classical shell theory and von Karman's assumption of kinematic nonlinearity and applying Galerkin procedure, the equations for finding critical loads and......
#Nonlinear #postbuckling #functionally graded materials #cylindrical panel
Calculation of turbulent diffusion jets under effects of gravity and moving surrounding air
Vietnam Journal of Mechanics - Tập 23 Số 2 - 2001
The basis theory for the turbulent diffusion of jet and flame has been presented previously [1, 2]. But that one applies only in quiet surrounding air with the effects of buoyancy neglected. In the present paper, the theory is developed further by establishing an integral model for a jet in more general conditions with variable inclined angles, under effects of gravity and surrounding air velocity......
Ổn định của vỏ trụ trực hướng đàn nhớt và đàn hồi
Vietnam Journal of Mechanics - Tập 10 Số 2 - 1988
None
Application of the curvature smoothing technique for four-node quadrilateral Reissner-Mindlin plate element
Vietnam Journal of Mechanics - Tập 29 Số 1 - 2007
A quadrilateral element with smoothed curvatures for Reissner-Mindlin structure plates is proposed. A curvature matrix at an arbitrary point is normalized by a non-local approximation over a smoothing function. By choosing a constant smoothed function and applying the divergence theorem, the bending stiffness matrix calculated on boundaries of smoothing elements (smoothing cells) instead of on the......
The influence of foundation mass on dynamic response of track-vehicle interaction
Vietnam Journal of Mechanics - Tập 41 Số 1 - 2019
The influence of foundation mass on the dynamic response of track-vehicle interaction is studied in this paper. The moving vehicle is modeled as a two-axle mass-spring-damper four-degrees-of-freedom system. A new dynamic foundation model, called "Dynamic foundation model" including linear elastic spring, shear layer, viscous damping and foundation mass parameter, is used to analyze the dynamic res......
#Winkler foundation #two-parameter foundation #dynamic foundation model #foundation mass #track-vehicle interaction
Tổng số: 1,033
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