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- W188879456 abstract "The present work deals with the study of vibration and stability analyses of functionally graded spinning shaft system under thermal environment using three nodded beam element based on TBT. Temperature field is assumed to be a uniform distribution over the shaft surface and varied in radial direction only. Material properties are assumed to be temperature dependent and graded in radial direction according to power law gradation. In the present analysis, the mixture of Aluminum Oxide and Stainless Steel is considered as FG material where metal contain is decreasing towards the outer diameter of shaft. The FG shafts are modeled as a Timoshenko beam by mounting discrete isotropic rigid disks on it and supported by flexible bearings that are modeled with viscous dampers and springs. Based on FOSD beam theory with transverse shear deformation, rotary inertia, gyroscopic effect, strain and kinetic energy of shafts are derived by adopting three-dimensional constitutive relations of material. The derivation of governing equation of motion is obtained using Hamilton’s principle and solutions are obtained by three-node FE with four DOF per node. In this work the effects of both internal damping have also been incorporated in the finite element model. A complete code has been developed using MATLAB program and validated with the existing results available in literatures. The analysis of numerical results reveals that temperature field and power law gradient index have a significance role on the materials properties of FG shaft. Various results have also been obtained such as Campbell diagram, stability speed limit, damping ratio and time responses for FG shaft due unbalance masses and also compared with conventional steel shaft. It has been found that the responses of the FG spinning shaft are significantly influenced by radial thickness, power law gradient index and internal damping and temperature dependent material properties." @default.
- W188879456 created "2016-06-24" @default.
- W188879456 creator A5006541910 @default.
- W188879456 date "2013-01-01" @default.
- W188879456 modified "2023-09-26" @default.
- W188879456 title "Finite element based vibration and stability analysis of functionally graded rotating shaft system under thermal environment" @default.
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