Investigation Of Turbine Blade Failure And Stress Distribution By MSC Nastran Patran In Cargo Ship Turbocharger

Chia , Hwee Siang (2009) Investigation Of Turbine Blade Failure And Stress Distribution By MSC Nastran Patran In Cargo Ship Turbocharger. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

MSC Nastran Patran technique was used to simulate and analysis for the turbocharger turbine blade failure investigation. The Finite Element Method (FEM) is applied and used for the turbine blade simulation for identifies the failure region and point by the stress distribution. The Finite Element Method (FEM) findings and results are a major consideration in design. Furthermore, the loads, boundary condition and material properties are defined. The Finite Element Model is submitted for the structural analysis once is completed. The similar turbine blade simulations from the literature study are referred and study in order to achieve the objectives of the Projek Sarjana Muda (PSM). The simulation results revealed that the stress distribution on the turbine under the various case such as comparison of dimension which is 80 mm, 100 mm (original dimension) and 120 mm and materials, Inconel X-750, Inconel 718 (original material), Inconel 650 and Inconel 620. Meanwhile, the result verified that Inconel 718 with 80 mm turbine blade provided higher Young’s Modulus and stiffness characteristic in the project. Inconel 718 is well representative material for turbine blade due to the ability of withstands high pressure and temperature and insures the long wear life. Thus, the Inconel 718 and 80 mm dimension blade is applied in the overall simulation. The simulation result is indicated that the blade root is withstanding highest pressure which is showed the good agreement with the realistic turbine blade failure. The MSC Nastran/Patran is powerful method used to identify the critical areas at the turbine blade where the weakness point appear base on stress distribution result and essential to the marine industrial.

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