Vibration Analysis using Finite Element Analysis (FEA): An Evaluation of Pico-Tubular Bulb Type Turbine Blades Fabricated in Composite Materials
Luza, Jeiel Uziel A.1, Hernandez, Noel M.2
1Luza, Jeiel Uziel A., DMET, MSU – Iligan Institute of Technology, Iligan City, Philippines.
2Hernandez, Noel M., DMET, MSU – Iligan Institute of Technology, Iligan City, Philippines.
Manuscript received on 10 April 2024 | Revised Manuscript received on 19 April 2024 | Manuscript Accepted on 15 June 2024 | Manuscript published on 30 June 2024 | PP: 1-11 | Volume-13 Issue-5, June 2024 | Retrieval Number: 100.1/ijeat.E444613050624 | DOI: 10.35940/ijeat.E4446.13050624
Open Access | Editorial and Publishing Policies | Cite | Zenodo | OJS | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Tubular turbines have been widely employed and have evolved rapidly since their introduction in the 1930s due to their strong technical and economic qualities and applications. Because its performance and structure differ from those of ordinary vertical shaft units, local and international academics have worked extensively on research techniques and technological means, utilising numerical simulation and model testing. The transmission of a high quantity of power can cause unwanted vibrations, reducing efficiency, increasing wear, and, in the worst-case scenario, causing severe damage. In this paper, the material proposed to prevent random excitations and excess vibration of the pico-turbine is the use of CFRP (carbon fibre-reinforced polymer) and PLA (polylactic acid). In this paper, ANSYS Mechanical modal simulation is used to evaluate the robustness behaviour of the composite materials used as the primary material in the fabrication of turbine blades for bulb-type turbine applications. The use of CFD simulation in SOLIDWORKS is necessary to examine the pressure fluctuations caused by unsteady flow, which can contribute to unwanted pulsation, and to confirm the modal simulation results. To validate the results, pressure pulsation experimentation is conducted to evaluate the fluctuation of pressure affecting the blades or in the rotating region, and it is analysed through the frequency response domain. Hence, in this paper, it is demonstrated that the vibration behaviour of the material is acceptable, as the resulting natural frequency yields stress, strain, and deformation that are allowable and below its ultimate tensile strength.
Keywords: Carbon Fiber, Composite Materials, Natural Frequency, Pressure Pulsation
Scope of the Article: Composite Materials