首页--交通运输论文--水路运输论文--各种船舶论文--军用舰艇(战舰)论文--潜水艇论文

Studies of Submarine Engine Exhaust Silencers and Thermal Infrared Signature Reduction

ABSTRACT第4-5页
CHAPTER 1 INTRODUCTION第9-22页
    1.1 Naval Stealth Technology第9-11页
    1.2 Engine Exhaust Noise and Control第11-14页
        1.2.1 Exhaust System Noise第11-12页
        1.2.2 Exhaust Silencers第12-13页
        1.2.3 Submarine Exhaust Silencing System第13-14页
    1.3 Exhaust Thermal Infrared Signature Shielding第14-20页
        1.3.1 Thermal Radiations第14-15页
        1.3.2 Thermal and Selective Radiators第15-16页
        1.3.3 Thermal Imaging第16页
        1.3.4 IR Detectors/Sensors第16-18页
        1.3.5 IR Detectors/Sensors Sensitivity Range第18-19页
        1.3.6 Cooling of Exhaust Gas: Method for Shielding IR Signatures of Engine Exhaust第19-20页
    1.4 Objectives of the Present Research第20-22页
CHAPTER 2 ENGINE EXHAUST SYSTEM AND SILENCERS第22-34页
    2.1 Exhaust System Representation第22-24页
    2.2 Types of Exhaust Silencers第24-25页
        2.2.1 Reactive Silencers第24页
        2.2.2 Dissipative Silencers第24-25页
        2.2.3 Combination Type第25页
    2.3 Silencer Design Principles第25-33页
        2.3.1 Acoustic Performance第25-29页
        2.3.2 Aerodynamic Performance第29-32页
        2.3.3 Mechanical Performance第32页
        2.3.4 Structural Performance第32页
        2.3.5 Economic Requirement第32-33页
    2.4 Concluding Remarks第33-34页
CHAPTER 3 ACOUSTIC SIMULATION AND ANALYSIS OF SILENCERS第34-55页
    3.1 Introduction第34-39页
        3.1.1 Transfer Matrix Method Based on Plane Wave Theory第34-37页
        3.1.2 3-D Analytical Method第37-38页
        3.1.3 Acoustic Finite Element Method (FEM)第38-39页
        3.1.4 Acoustic Boundary Element Method (BEM)第39页
        3.1.5 A Comparison of FEM and BEM第39页
    3.2 Three Dimensional Waves第39-42页
    3.3 Variational Formulation of Acoustic FEM第42-45页
    3.4 Numerical Computation Using FEM第45-47页
        3.4.1 ANSYS第45页
        3.4.2 SYSNOISE第45-46页
        3.4.3 Boundary Conditions第46页
        3.4.4 Post Processing第46-47页
    3.5 Acoustic Performance Calculations and Anaylysis of Silencers第47-53页
        3.5.1 Expansion Chamber with Offset Extended inlet/Outlet第47-49页
        3.5.2 Expansion Chamber with Offset Perforated Extended Inlet/Outlet Tubes第49-51页
        3.5.3 Double Expansion Chamber Reactive Silencer with Double Inter-connecting Tubes第51-52页
        3.5.4 Reversing Flow Silencer第52-53页
    3.6 Concluding Remarks第53-55页
CHAPTER 4 AERODYNAMIC SIMULATION AND ANALYSIS OF SILENCERS第55-72页
    4.1 Introduction第55-57页
        4.1.1 Pre-Processor第55-56页
        4.1.2 Solver第56-57页
        4.1.3 Post-Processor第57页
    4.2 Governing Equations of Tubular Flow第57-60页
        4.2.1 Standard k -ε Model第59-60页
    4.3 Finite Volume Method (FVM)第60-62页
    4.4 Numerical Computation Using FLUENT第62-63页
        4.4.1 Boundary Conditions第62-63页
        4.4.2 Solver Selection and Solution第63页
    4.5 Aerodynamic Performance Calculations and Analysis of Silencers第63-71页
        4.5.1 Expansion Chamber with Offset Extended inlet/outlet第63-65页
        4.5.2 Expansion Chamber with Offset Perforated Extended Inlet/Outlet Tubes第65-67页
        4.5.3 Double Expansion Chamber Reactive Silencer with Double Inter-connecting Tubes第67-69页
        4.5.4 Reversing Flow Silencer第69-71页
    4.6 Concluding Remarks第71-72页
CHAPTER 5 COOLING SILENCERS第72-97页
    5.1 Introduction第72-73页
        5.1.1 Dry Type Cooling Silencer Design第72-73页
    5.2 Governing Equations for Temperature Field第73-74页
        5.2.1 Energy Equation in Solid Regions第74页
    5.3 Numerical Computation Using FLUENT第74-77页
        5.3.1 Material Physical Properties第74-76页
        5.3.2 Boundary Conditions第76-77页
        5.3.3 Turbulence Model第77页
        5.3.4 Solution Process for Heat Transfer第77页
    5.4 Temperature Drop Calculation and Analysis of Cooling Silencers第77-92页
        5.4.1 Cooling Expansion Chamber with Offset Extended Inlet/Outlet第77-80页
        5.4.2 Cooling Expansion Chamber with Offset Perforated Extended Inlet/Outlet Tubes第80-82页
        5.4.3 Double Expansion Chamber Cooling Silencer with Double Inter-connecting Tubes第82-86页
        5.4.4 Reversing Flow Cooling Silencer第86-92页
    5.5 Cooling by Water Injection in Exhaust Gas: Numerical Simulation第92-95页
    5.6 Concluding Remarks第95-97页
COCLUSIONS第97-101页
REFERENCES第101-107页
ACKNOWLEDGEMENTS第107-108页
Appendix A第108-109页
Appendix B第109-110页

论文共110页,点击 下载论文
上一篇:持有型犯罪研究
下一篇:The Application of Strategy-based Instruction in Teaching College English Listening