Aero Engine Combustor Casing Experimental Design and Fatigue Studies

3.5 Design and Manufacturing of Adaptors -- 3.5.1 Bottom Fixing Plate -- 3.5.2 Bottom Sealing Drum -- 3.5.3 Inner Bottom Fixing Plate -- 3.5.4 Special Tie Rod -- 3.5.5 Top Sealing Plate -- 3.5.6 Top Fixing Plate -- 3.5.7 Top Support Plate -- 3.5.8 Top Holding Plate -- 3.5.9 Special Studs -- 3.5.10 Seals -- 3.6 Summary -- Chapter 4: Manufacturing of an Aero Engine Combustor Casing, the Experimental Evaluation of Its Fatigue Life, and Correlation with Numerical Results -- 4.1 Introduction -- 4.2 Manufacturing Method of the Combustor Casing -- 4.2.1 Metal Spinning Process -- 4.2.1.1 Advantages of the metal spinning process -- 4.2.1.2 Disadvantages of metal spinning process -- 4.2.2 Electron Beam Welding Method -- 4.2.3 Tungsten Inert Gas Welding Method -- 4.3 Configuration of the Combustor Casing -- 4.4 Experimental Evaluation of Fatigue Life -- 4.4.1 Instrumentation -- 4.4.2 Inspection Methodology -- 4.5 Mechanical Properties of Combustor Casing Material -- 4.6 Numerical Analysis of the Combustor Casing -- 4.6.1 Details of the Finite Element Model -- 4.6.2 Finite Element Model Quality Parameters -- 4.6.3 Boundary Conditions -- 4.6.4 Load -- 4.6.5 Pressure Load -- 4.6.6 Thermal Load -- 4.6.7 Nusselt Equation -- 4.6.8 Dittus Boelter Equation [139] -- 4.7 Numerical Analysis of the Igniter Boss and Its Correlation with Experimental Data -- 4.8 Results and Discussions -- 4.9 Summary -- Chapter 5: Reassessment of Fatigue Life of the Modified Combustor Casing -- 5.1 Introduction -- 5.2 Modified Manufacturing Methodology -- 5.2.1 Forging Process: Benefits and Drawbacks -- 5.3 Instrumentation of the Modified Combustor Casing -- 5.4 Assembly and Trial Run -- 5.5 Testing -- 5.6 Results and Discussion -- 5.7 Summary -- Chapter 6: Safety Test on Modified Combustor Casing -- 6.1 Introduction -- 6.2 Test Component Details