Vietnam Journal of Mechanics

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Xác định các tham số ổn định của hệ phương trình vi phân tuyến tính hệ số tuần hoàn
Vietnam Journal of Mechanics - Tập 3 Số 3 - 1981
None
Numerical simulation of fluid mud layer under current and waves in estuaries and coastal areas
Vietnam Journal of Mechanics - Tập 20 Số 3 - 1998
The formation and development of fluid mud layer under the both factors of current and wave that often happens in estuaries and coastal areas are studied in detail through numerical simulation on the basis of the 2D shallow water equations for tidal flow, the advection-diffusion equation for cohesive sediment transport and the equations for fluid mud transport. At the same time the model for wave ...... hiện toàn bộ
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 ...... hiện toàn bộ
Suspended sediment concentration distribution in an alluvial channel flow
Vietnam Journal of Mechanics - Tập 16 Số 1 - 1994
In this paper a numerical solution for the problem on suspended sediment concentration distribution in an alluvial channel flow has been computed on the base of PROFILE model proposed by L. C. Van Rijn for the case of uniform flow. Although, in the present case, mathematical model is quite simple, but it is exact enough to apply to Somme problems in practice. The aim of the paper is that the autho...... hiện toàn bộ
Static analysis of laminated and sandwich composite plates based on simple refined higher-order displacement theory
Vietnam Journal of Mechanics - Tập 32 Số 2 - 2010
Tran Minh Tu
A simple refined higher-order displacement theory is used for the static analysis of laminated and sandwich plates. Both analytical and finite element solutions are developed. Numerical examples of laminated and sandwich plates are given for different thickness ratios, length-to-thickness ratios to illustrate the accuracy of the present formulation by comparing the present results with results alr...... hiện toàn bộ
The absorber in self-excited system with random excitation
Vietnam Journal of Mechanics - Tập 12 Số 3 - 1990
In this paper, the absorber effect for self-excited system with random excitation is examined. It turns out that the random-self-oscillations can be suppressed by increasing the damping coefficient of the absorber. The results are obtained by averaging method and the FPK one.
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...... hiện toàn bộ
The oscillations of the dynamical systems with hysteresis characteristics excited stochastic parameter and forces. II
Vietnam Journal of Mechanics - Tập 2 Số 1 - Trang 16-22 - 1980
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
Ninh Quang Hai
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.
Tự động hóa thiết kế các cơ sở đồ môđun truyền dẫn khí nén
Vietnam Journal of Mechanics - Tập 13 Số 1 - 1991
None
Tổng số: 1,046   
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