... algorithms. In general, the proposed method is shown to be second-order accurate and unconditionally stable for linear elastic and stiffness softening systems. The comprehensive stability and accuracy analysis, including numerical dispersion, energy dissipation, and the overshoot behavior, are carried out...

...M. A. Zaky; E. H. Doha; J. A. Tenreiro Machado In this paper, we construct and analyze a Legendre spectral-collocation method for the numerical solution of distributed-order fractional initial value problems. We first introduce three-term recurrence relations for the fractional integrals...

... equation, we verify that the solution of such model may not be globally well-defined, and the dynamics of this model depends on the order of fractional derivative and the volume of spatial domain. In simulation, a finite difference scheme is implemented and interesting numerical solutions of model...

... discretization as in von Neumann stability analysis. Authors define numerical gain as R ( Δ t λ ) = ( u n + 1 / u n ) . This is stable only if | R ( Δ t λ ) | ≤ 1. where k = Δ t and e = ( 1 , 1 , … , 1 ) ∈ I...

... Multibody system dynamics Nonlinear dynamical systems Design optimization Robotics Impact Contact Friction modeling Numerical Integration methods Bio-mechanical systems Biological systems Dynamics Stability of nonlinear systems Design sensitivity Nonlinear systems Mechanism systems...

... fictitious damping is applied. Conventional DR methods use a fictitious mass matrix to increase the fictitious damping while maintaining numerical stability. There are many calculation methods for the fictitious mass matrix; however, it is difficult to select the appropriate method. In addition...

... algorithm to handle FDs and integer derivatives, respectively. To reduce the computational burden, the proposed approach provides a strategy to avoid nonlinear algebraic equations arising routinely in the Newmark- β algorithm. Numerical results show that the presented method has second-order accuracy...

.... Numerical examples confirm the superior accuracy of the proposed method. For more details on the fractional derivatives and integrals, readers can follow Refs. [ 1 ] and [ 2 ]. The main objective of this section is to introduce the FLWs basis. First, we review some useful properties...

... as follows. Using the entropy chain rule [ 18 ] and the definition of condition entropy in Eq. (4) , it can be shown that causation entropy can be written as a function only of joint entropies between the time series and the shifted time series. Numerous methods have been proposed for numerically estimating...

... a relatively large time integral step with numerical stability in computations. By simplifying into a linearized model, pseudo-excitation method (PEM) can be theoretically implemented to characterize the dominant vibration frequencies of vehicle-track systems due to random excitations. Finally, a trail method...

... Algorithms Computational mechanics Nonlinear oscillations Reduced-order models Structural dynamics Numerical Integration methods Vibration The use of finite element (FE)-based structural dynamic models to simulate structural response has become a standard practice in many fields of application...

... as independent unknown parameters to be identified. Numerical simulations are conducted to identify two typical incommensurate fractional-order chaotic systems. Simulation results and comparisons analyses demonstrate that the proposed method is suitable for parameter identification with advantages of high...

... of view, the stability analysis and chaotic behavior of three novel fractional systems are provided by the proposed approach. Numerical simulations and comparative results confirm that this scheme is also successful for the fractional chaotic systems with delay arguments. 1 Corresponding author...

... , New Delhi, India . [18] Kohnke , P. , ed., 2009 , “ Theory Reference for the Mechanical APDL and Mechanical Applications ,” ANSYS, Inc. , Canonsburg, PA . [19] Nocedal , J. , and Wright , S. , 2006 , Numerical Optimization , Springer-Verlag , New York . [20] Tseytlin...

... and applied to three typical quasi-periodic systems. The approximate boundaries in stability charts obtained from the proposed method are very close to the exact boundaries of original quasi-periodic equations computed numerically using maximal Lyapunov exponents. Further, the frequency spectra of solutions...

... manuscript received July 17, 2017; published online October 31, 2017. Assoc. Editor: Javier Cuadrado. 14 02 2017 17 07 2017 Algorithms Multibody system dynamics Non-smooth dynamics Impact Contact Friction modeling Numerical Integration methods The time-evolution...

...A. M. Nagy; N. H. Sweilam; Adel A. El-Sayed The multiterm fractional variable-order differential equation has a massive application in physics and engineering problems. Therefore, a numerical method is presented to solve a class of variable order fractional differential equations (FDEs) based...

...Samer S. Ezz-Eldien; Ahmed A. El-Kalaawy This paper presents an efficient approximation schemes for the numerical solution of a fractional variational problem (FVP) and fractional optimal control problem (FOCP). As basis function for the trial solution, we employ the shifted Jacobi orthonormal...

..., with a boundary condition in the infinite that describes the unsteady isothermal flow of a gas through a semi-infinite micro–nano porous medium and has widely used in the chemical industries. In this paper, a hybrid numerical method is introduced for solving this equation. First, by using the method of quasi...

... that, upon implementation of this method, the computation time can be reduced at a very low implementation and accuracy costs. Two vehicles are simulated to prove the numerical benefits, namely a 16-degrees-of-freedom (DOF) sedan vehicle and a 40-degrees-of-freedom semitrailer truck. In short, a simple...