Hydroelastic Analysis of Surface Piercing Propeller

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Fatemeh, Shahreki | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 46428 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Seif, Mohamad Saeed
Abstract:
Surface piercing propellers are particular type of supercavitating propellers that are commonly used for High-speed vessels. Most studies on this type of propellers has been investigating the hydrodynamic forces. But in recent years with increase in SPPs diameter used in vessels, structural analysis of this type of propellers is considered. For this purpose, studies on the stresses exerted on the propeller structures under load is done with the help of Hydro elastic methods. In this type of analysis, structura of propeller is intended to be flexible and Displacements under pressure checked and Tensions resulting from it are studied.
The present Thesis using ANSYS software to analyze a sample of SPP. For this purpose, The ANSYS CFX software propeller hydrodynamic analysis was performed based on the rotational speed and floating rate, and Pressure on the propeller disk are calculated. Then, due to the pressure exerted on the propeller, the propeller stresses in structures coupled with ANSYS Mechanical software for both stainless steel and nickel alloy, reviews and fatigue analysis has been done on them
Keywords:
Hydrodynamic Analysis ; Fatigue Analysis ; ANSYS Software ; CFX Code ; Surface Piercing Propeller ; Hydroelasatic Analysis

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