...Junjun Chen; Bing Xu; Qingkai Zhao; Juntao Yang Purpose For the purpose of studying the stability and stick-slip vibration characteristics of the coke pushing system, a dynamic model used to describe the friction self-excited vibration system is established in the article. Design/methodology...

... grassland competition model is formulated using the Caputo fractional derivative of order ρ ∈ (0, 1]. The qualitative behavior of the system is analyzed by establishing the non-negativity and boundedness of solutions, followed by a stability analysis of the equilibrium points. Numerical simulations...

... the fractional central difference formula to approximate the Riesz derivative, the fully discrete difference scheme is obtained. Findings The stability and convergence of the proposed scheme are strictly analyzed with second-order accuracy in time and space. The theoretical analysis is verified by numerical...

...Yang Juping; Junguo Wang; Zhao Yongxiang Purpose The purpose of this paper is to investigate the non-linear characteristics and stability of the rolling bearing–axle coupling system under the excitation of the axle/wheel speed of railway freight cars, so as to put forward a rationale for judging...

... Conditions for existence and uniqueness of the proposed game’s solution are derived. The existence of Nash equilibrium point and its local and global stability are obtained. Furthermore, local stability analysis of the discretized game is investigated. The effects of fractional-order on game’s dynamics...

... heterogeneous one is solved. Homogenization Optimization Inclusion Stability Functionally graded material Functionally graded beam Jan Awrejcewicz can be contacted at: jan.awrejcewicz@p.lodz.pl 02 03 2018 10 07 2018 17 08 2018 23 09 2018 24 09 2018 © Emerald...

.... Then, stability-preserving SSP-RK54 scheme and the Thomas algorithm are used to solve the obtained system. The stability of the algorithm is also discussed. Findings A different technique based on modified cubic trigonometric B-spline functions is proposed which is quite different from the schemes developed...

... and maximum error norms in each case. A matrix stability analysis is also performed by determining eigenvalues of the coefficient matrices numerically. Findings Numerical results show that differential quadrature methods based on cubic B‐splines generate acceptable solutions of nonlinear Burgers' equation...

... approach allows the designer to model the external surface of the waste in respect of some geometrical constraints and three‐dimensional stability, evaluated for one or more prefixed slip surfaces. Analytical expressions needed to assemble a computer program are given and an illustrative example is also...

... of finite element approximations of both the old and new methods are discussed, with an emphasis on their behaviour in the incompressible limit. Conditions for the stability and uniform convergence of the new method are presented, and it is shown that the Pian‐Sumihara basis, when used in the new...

... in the explicit scheme. The spatial and time discretizations are stabilized using FE stabilization techniques. Numerical examples of unsteady flow of two‐fluid interfaces in an earth dam are investigated. © MCB UP Limited 2003 Finite element method Flow Porous media Stability In Section 2...

... to be simulated for finite element analysis, are very easy to be simulated here by boundary element modeling as internal sources. The stability problem is solved by using the linear θ method, which makes the BEM scheme stable. The numerical results are compared with analytical solutions for two examples...

... Design optimization Steel Stability Genetic algorithms Any structural designer attempts to achieve a safe and economical design. Achieving a safe design is helped by using a set of accepted design rules in a form of current codes of practice (e.g. BS 5950 and BS 6399[1‐3] in the UK...

... formulations. © MCB UP Limited 2001 Finite elements Convergence Stability Problems such as incompressible elasticity and fluid dynamics of incompressible flows have always constituted a challenge to finite element developers: the standard displacement (velocity) interpolated elements...

... equations of boundary frequencies to the standard form of a generalized eigenvalue problem. Instability regions for various combinations of external loads and axial acceleration of the column are presented. ENGINEERING COMPUTATIONS, VOL. 12, 6 0 9 - 6 1 8 (1995) DYNAMIC STABILITY OF A MOVING COLUMN SUBJECT...

... of the sinusoidal perturbations of the axial loads. ENGINEERING COMPUTATIONS, VOL. 12, 3 8 5 - 3 9 3 (1995) DYNAMIC STABILITY OF A BEAM ON MULTIPLE SUPPORTS SUBJECT TO PULSATING CONSERVATIVE AXIAL LOADS H. P. LEE Department of Mechanical and Production Engineering, National University of Singapore, 10 Kent Ridge...