Modeling and Simulation of Thermal Analysis of a Teflon Coated Plate

Abstract

This paper presents thermal analysis with finite elements for a plate of steel covered on the surface with a thin layer of Teflon. There is the possibility of identification of that part responsible for beginning of the thermal degradation using the vibrational model. The thermal analysis with finite elements made with ANSYS program enables monitoring and determination of plate variation of temperature. This variation of temperature could cause significant changes in guided wave propagation.

Vibration Study for a Subassembly – Part of Hydraulic Turbines

“…Considering frequent malfunctioning issues at a hydraulic turbine are bearing related we made in the present paper a vibration analysis of different case studies consisting in tests were sliding bearings having different characteristics were used [1][2][3][4][5][6][7]. When building experimental stand we took into account main conditions the subassembly components should satisfy, as: high wear, corrosion and fatigue resistance, bearing must have two to four times less resistance than shaft, high stiffness, friction coefficient as low as possible, good lubricating conditions and thermal conductivity, simple and low cost maintenance, small differences between dilatations of bearing elements in order to remain close to the initial clearance [8][9][10][11][12][13][14].…”