Helicopter Engineering |
HIRAMOTO, Takashi |
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【Master's program･2nd semester】
14-3-1023 |
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Objectives |
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The goal of this course is to understand the flight mechanism and aerodynamics of the helicopter through the conceptual design of the original helicopter according to basic process. In addition, the lectures address problems that should be settled by the helicopter design and aim to understand flight properties and performances.
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Outline |
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In this course, students will design a helicopter of the scale that they chose themselves according to typical conceptual design methods that will be shown in the lectures. Students will understand numerically the aerodynamics of the rotor and the flight dynamics of the helicopter through the design.
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Requirements (Assignments) |
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A prerequisite is for students to study “Introduction to Helicopter Engineering”. Furthermore, “Fundamental Design Technology of an Airplane” and “Airplane Dynamics” will also need to be studied. In the lectures, the supplemental explanation shall be given with the presentation materials depending on the understanding level of participants. However, a preparation learning with using the reference books introduced in the class is recommended.
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Schedule |
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Chapter 1 Design process – Development process of aircraft
Chapter 2 Helicopter design – Setting of helicopter scale
Chapter 3 Main rotor design, part 1 – Momentum theory and wing element theory
Chapter 4 Main rotor design, part 2 – Setting of main rotor sizing
Chapter 5 Assumption of power, part 1 – About power of helicopter
Chapter 6 Assumption of power, part 2 – Required power
Chapter 7 Landing gear – Construction and choice of landing gear
Chapter 8 Tail rotor design – Tail rotor sizing
Chapter 9 Specifications – Result and confirmation
Chapter 10 Refinement of power estimation, part 1 – Weight evaluation
Chapter 11 Refinement of power estimation, part 2 – Confirmation of concept
Chapter 12 Choice of engine
Chapter 13 Confirmation of basic performance
Chapter 14 Three view drawing
Chapter 15 Presentation of design
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Grading Policy |
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The learning results are evaluated by means of reports on design and discussion.
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Textbook and Reference |
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Texts will be given in lectures as necessary.
Reference book: W.J. Wagtendonk, “Principles Helicopter Flight”, Aviation Supplies & Academics, Inc.
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Note |
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Students will design a helicopter based on what they learn in lectures. They will give presentations about the design progress status when appropriate and discuss their results.
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