.... In the present study, the rotating machine is composed of a disc mounted on a flexible shaft supported by rolling bearings at the ends of the shaft. The model is obtained from the classical Lagrange’s equations and the finite element method, considering both the strain energy and kinetic energy of the shaft...

... is formulated. The nonlinear finite element method (NFEM) [ 38 , 39 ], along with the principle of virtual work [ 40 ], is used to obtain the results, including natural frequencies and mode shapes, based on the direct iterative method. However, nonlinear vibration behaviors such as softening/hardening behavior...

... of ASME for publication in the J ournal of V ibration and A coustics . 06 08 2021 24 02 2022 24 02 2022 18 03 2022 mode shape recognition beam structures wind turbine blade coupled modes cross section finite element method 3D scanning laser Doppler vibrometer (SLDV...

..., transmission, and absorption coefficients of a coating with cylindrical cavities are compared with results using the finite element method (FEM) as well as with experimental and analytical results from the literature. Frequencies associated with peak sound absorption are predicted. Variation in the geometric...

... on the coupled shafts. Structural analysis of metallic disc coupling is conducted by means of the finite element method, in which the flexible disc component is modeled using thin shell formulation. Once misalignments are applied, the cyclic nature of coupling efforts is captured by the application...

... in conjunction with a multiscale finite element method. The constitutive law refined with the greater accuracy on the bending modulus using second generation reactive empirical bond order potential with dihedral energy term is employed to investigate the linear and nonlinear response of the carbon nanotubes...

...Qiang Yao; Tsuyoshi Inoue; Shota Yabui In this paper, transfer function of rotating shaft system for detecting transverse open crack is developed. Rotating shaft system is modeled using one-dimensional finite element method (1D-FEM), and quantitative analysis is performed. Open crack is modeled...

... of the system is simulated via finite element method (FEM). To this end, new nonclassical beam element stiffness and mass matrices are developed based on the strain gradient theory and verification of this new beam element is accomplished in this work. As illustrated in Table 2 , it is worth noting...

... ), pp. 111 – 134 . 10.1006/jfls.1996.0069 [5] Zhang , Y. L. , Gorman , D. G. , and Reese , J. M. , 2001 , “ A Finite Element Method for Modelling the Vibration of Initially Tensioned Thin-Walled Orthotropic Cylindrical Tubes Conveying Fluid ,” J. Sound Vib. , 245 ( 1 ), pp. 93...

...; published online April 3, 2014. Assoc. Editor: Massimo Ruzzene. 29 03 2013 15 01 2014 In order to analyze the supersonic and transonic panel flutter behaviors quantitatively and accurately, a fluid-structure coupling algorithm based on the finite element method (FEM) is proposed...

... January 16, 2014. Assoc. Editor: Michael Leamy. 26 05 2013 05 10 2013 In this manuscript, acoustic wave propagation in a novel three-dimensional porous phononic crystal-Kagome lattice, is studied by using finite element method. Firstly, a Kagome-sphere structure is established based...

... structures to filter waves. They may be very useful structures filtering or guiding waves at some circumstances to meet the demands of engineering. Wave propagations in two-dimensional HHLSs are investigated by the finite element method. Band structures, wave modes, dispersion surfaces, as well as phase...

... bandgap in a lower position than the system with two openings. acoustic wave phononic crystals bandgap Helmholtz resonator finite element method Since Kushwaha et al. [ 1 ] proposed the concept of phononic crystals (PCs, also named sonic crystals in the case of fluid matrix), a great...

..., this technique (CMS) obtained satisfactory results. When compared to analytical models, MAC close to unity is obtained, and when compared to the finite element method, relative differences of less than three percent were obtained. The CMS technique was efficient in the range of low frequencies. However...

... reduction structural-acoustic piezoelectric patches switch shunt finite element method damping finite element analysis piezoelectric devices structural acoustics vibrations 03 07 2009 17 02 2010 20 08 2010 20 08 2010 2010 American Society of Mechanical Engineers ...

... of the Lagrange equation. In order to improve accuracy, the finite element method is utilized to solve the Reynolds equation for the dynamic characteristics of the squeeze film damper. When the calculated unbalance responses are compared with the test responses, they indicate that the dynamics model is correct...

... is developed by using the finite element method. Composite loss factors are calculated based on the average ratio of the unit cell energy loss to the unit cell energy input. Calculated loss factors under different strain are compared with experimental data. With the validated model, a parametric study...

... of the estimated modal parameters. 23 01 2008 10 12 2008 22 04 2009 building condition monitoring eigenvalues and eigenfunctions finite element analysis modal analysis steel stochastic processes structural engineering vibrations spatial structure finite element method field...

... (structures) steel vibrations viscoelasticity 15 02 2008 14 10 2008 19 02 2009 finite element method sandwich beam sandwich ring viscoelasticity damping vibration Noise and vibration control is a major concern in several industries such as aeronautics and automobiles...

... types of AISI4140 steel workpieces, uniform and stepped, as shown in Fig. 2 , were used in the theoretical and experimental studies for several combinations of cutting process parameters. The dynamical equations of motion of workpieces are established using the beam finite element method. Variations...