Comparison of vibration analysis with different modeling method of a rotating shaft system
The numerical analysis is the basic step of machine designing and the result from it is the fundamental data for the assess management of machine/plant. Recently, many kinds of softwares based on different method, like Finite Element Method (FEM) and Transfer Matrix Method (TMM) were developed for the machine design. Especially the development of simulating a rotating component, gas/steam/wind turbine shaft, high speed shaft, the shaft of large vessels and the shaft with blades, flywheels and gears. In order to reduce the error, it always needs to increase the number of element, some times over 100,000. But it will affect the inputing matrix size and calculating time. In this paper, a 2D modelling method was proposed to reduce the element size and solving time. This paper compared the simulation results from MSC Partan/Nastran and ANSYS Workbench using a 3D model and the results by solving MATLAB based on FEM using a 2D model.
KeywordsFinite Element Method Mode Shape Critical Speed Transfer Matrix Method Partial Differential Equation
Unable to display preview. Download preview PDF.
- 1.Kent Lawrence. (2007) ANSYS Tutorial Release 11. Kansas, SDC: Schroff Development Corporation Publications.Google Scholar
- 2.Louis Komzsik. (1998) MSC/NASTRAN Numerical methods User’s Guide. Santa Ana, MSC Software Corporations Publications.Google Scholar
- 3.Thelen R.F., Gattozzi A., Wardell D., Williams A. (2007) A 2-MW Motor and ARCP Drive for High-Speed Flywheel. Applied Power Electronics Conference (APEC2007) Twenty Second Annual IEEE, 1690-1694.Google Scholar
- 4.Schilling R.J., Harris S.L. (2000) Applied Numerical Methods for Engineers: Using MATLAB and C. Stamford, Thomson Corporation Publications.Google Scholar
- 5.Hastins J.K., Judes M.A., Brauer J.R., (1985) Accuracy and Economy of Finite Element Magnetic Analysis. 33rd Annual National Relay Conference.Google Scholar
- 6.Mclaren-Mercedes (2006) Vodafone McLaren-Mercedes: Feature - Stress to impress. http://www.mclaren.com/features/technical/stress_to_impress.php. Retrieved on 2006-10-03.Google Scholar