... network) finite element It is common to observe lightweight rotating machinery operating at high rotational speeds to enhance energy density, resulting in more complex and intricate shaft geometries [ 1 , 2 ]. Various rotordynamics models, utilizing Euler and Timoshenko beams, or high-fidelity 3D...

... that it creates integrity concerns on the pipeline. This research aims to study the effects of an ILI tool’s passage through exposed and partially supported pipes under a variety of boundary and loading conditions. A finite element model of an exposed pipe section is developed based on the Timoshenko beam theory...

... harvesters. A finite element model (FEM) is developed to predict the performance of this class of harvesters in terms of the mechanical displacements of the flexible structure, the pressure inside the acoustic cavity, and the output electric voltage of the piezoelectric harvester. The FEM is formulated here...

... is not as successful. In this way, Ali and Abdel-Ghaffar [ 4 ] investigated on the nonlinear seismic behaviour of cable-stayed bridges with passive control, developing a finite element formulation based on the total Lagrangian formulation. Zhu et al. [ 5 ] proposed a structure response control approach which uses...

... analysis and dynamic transient analysis [ 16 ]. In this study, the explicit dynamic finite element code ABAQUS /Explicit is used to simulate the vibration behavior of the pantograph-catenary system in time domain. This dynamic analysis procedure is based upon the implementation of an explicit central...

.... Assoc. Editor: Thomas J. Royston. 23 09 2011 05 10 2012 An optimization methodology to increase the noise transmission loss (TL) of damped sandwich structures is presented. The prediction of the TL uses a numerical tool based on a finite element formulation for the sandwich plate...

... of the nonlinear damping of composite laminates subject to large Green–Lagrange axial strains and assuming a Kelvin viscoelastic solid. An extended beam finite element is developed capable of providing the nonlinear stiffness and damping matrices of the system. The linearized damped free-vibration equations...

... Moduli Ratio on the In-Plane Natural Frequencies of Symmetrically Cross-Ply Beams by the Stiffness Method ,” J. Compos. Struct. , 50 , pp. 319 – 326 . 10.1016/S0263-8223(00)00124-0 [6] Chakraborty , A. , Mahapatra , D. R. , and Gopalakrishnan , S. , 2002 , “ Finite Element Analysis...

... layers, using Green-Lagrange strain displacement relations based on the higher order shear deformable displacement field in random environment has been developed. A nonlinear finite element method is combined with the FOPT procedure to outline a stochastic procedure to obtain the second-order statistics...

... method has been performed over a finite element model of the system consisting of an unbalanced flexible rotor mounted on a pair of MR-SFDs. Obtained results show that the amplitude of rotor’s vibration is not a simple function of electrical current such that, increase in the current cannot guarantee...

... are obtained from the proposed method, are compared with those of a full-nonlinear finite element analysis, where the comparisons indicate sound agreement The kinetic and potential energies of a FI, T FI and U FI , respectively, are given in Eqs. 9a and 9b . By using...

...A. R. Ohadi; M. Moghaddami This paper discusses the effects of compression on acoustical performance of fibrous materials. A finite element model is used to predict the absorption coefficient and transmission loss of absorbing and barrier materials. This model is developed based on the Galerkin...

... vibration finite element analysis of the dry enclosure visualized as a folded plate with first order transverse shear deformation and rotary inertia. Velocity amplitudes and forcing frequency is specified over certain parts of the boundary. The rest is interactive boundary. Absorbent layers at the boundary...