Introduction to Helicopter Engineering

HIRAMOTO, Takashi
  Elective  2 credits
【Aerospace Engineering・1st semester】
19-1-0319-3035

1.
Outline
The basic functions of the helicopter are understood in connection with the rotor blade mechanism principle, aerodynamic theory, and flight principle such as hovering. Students will also learn about basic equipment and power system overview, operational issues including noise and flight safety, and mechanisms of abnormal events that occur during operation such as settling with power and loss of tail rotor function.
In this course, you will gain the knowledge necessary to understand the on-site issues related to DP1.

2.
Objectives
The goal of this lecture is to understand the flight characteristics of a helicopter with a unique shape and system, and to know the various devices that make up the helicopter, based on basic knowledge such as aerodynamics related to aircraft.
(1) Explain basic principles of aerodynamic theory, flight principles, stability, and maneuverability of helicopters
(2) Explain outline of mechanical device for flying
(3) Understand and explain the characteristics of the structure, landing gear, etc. that have a different aspect from the fixed wing aircraft
3.
Grading Policy
The result is evaluated based on the regular examination. (100%)
Test results will be returned to each student and the necessary feedback will be given.
4.
Textbook and Reference
There is no textbooks in particular. Materials will be distributed for each lecture.
As a reference book, the following is appropriate:
"Helicopter (New Aviation Engineering Course) (3rd edition)", Y. Sato et al., Japan Aviation Technology Association, ISBN 978-4901215312
In addition, the following two books are recommended to gain an introductory knowledge of general helicopters.
"Illustrated helicopter", H. Suzuki, Kodansha Blue Backs, ISBN 978-4062573467
"The Latest Knowledge of Helicopters", A. Tsubota, Science Eye New Book, ISBN 978-4797353341
5.
Requirements (Assignments)
This lecture has many parts in common with the flight dynamics of fixed wing aircraft. Students who learned “Introduction to Aeronautical Engineering,” and/or “Introduction to Flight Dynamics” are encouraged to refer to or review them.
Please prepare with the materials used in this lecture that will be uploaded on the LMS. (Half an hour)
Depending on the content of the lecture, some task will be asked to submit. Please follow the instructions and submit. (1 hour)
6.
Note
As mentioned in the above, lecture is based on the knowledge of aviation engineering, so it is recommended to take “Introduction to Aeronautical Engineering,” and/or “Introduction to Flight Dynamics.”
7.
Schedule
1. Overview of helicopter: Learn about the history of the helicopter, basic system configuration, applications, etc.
2. Rotor system: Learn about the main rotor mechanism, hinges, hubs, swash plates, etc.
3. Control system, transmission: understand the mechanism to fly the helicopter
4. Helicopter dynamics: Learn basic mechanics including aerodynamics to understand helicopter maneuver
5. Fundamentals of flight theory: Learning about momentum theory and wing element theory, which are the basis of rotor theory
6. Hovering: Learn about balance of aerodynamic force and attitude control in hovering
7. Forward flight: Learn about aerodynamics, aircraft balance and blade movement during forward flight
8. Autorotation: Understand rotor movement and HV diagram during autorotation
9. Power curves and Flight performance: Learn about power in helicopter flight and key performance related to power curves
10. Tail rotor: Learn how helicopter tail rotor works
11. Stability and maneuverability: Learn about helicopter flight stability and maneuverability features
12. Structure and landing gear: Learn helicopter structure and landing gear characteristics (including differences with fixed wing aircraft)
13. Engines and power systems: Learn about the features of engines used in helicopters and the outline of power systems
14. Vibration and noise: Understand the causes of vibration of the helicopter, braking devices, and efforts to reduce noise
15. Summary and exams: Summarize the entire lecture and deepen understanding of the helicopter
1.
Outline
The basic functions of the helicopter are understood in connection with the rotor blade mechanism principle, aerodynamic theory, and flight principle such as hovering. Students will also learn about basic equipment and power system overview, operational issues including noise and flight safety, and mechanisms of abnormal events that occur during operation such as settling with power and loss of tail rotor function.
In this course, you will gain the knowledge necessary to understand the on-site issues related to DP1.

2.
Objectives
The goal of this lecture is to understand the flight characteristics of a helicopter with a unique shape and system, and to know the various devices that make up the helicopter, based on basic knowledge such as aerodynamics related to aircraft.
(1) Explain basic principles of aerodynamic theory, flight principles, stability, and maneuverability of helicopters
(2) Explain outline of mechanical device for flying
(3) Understand and explain the characteristics of the structure, landing gear, etc. that have a different aspect from the fixed wing aircraft
3.
Grading Policy
The result is evaluated based on the regular examination. (100%)
Test results will be returned to each student and the necessary feedback will be given.
4.
Textbook and Reference
There is no textbooks in particular. Materials will be distributed for each lecture.
As a reference book, the following is appropriate:
"Helicopter (New Aviation Engineering Course) (3rd edition)", Y. Sato et al., Japan Aviation Technology Association, ISBN 978-4901215312
In addition, the following two books are recommended to gain an introductory knowledge of general helicopters.
"Illustrated helicopter", H. Suzuki, Kodansha Blue Backs, ISBN 978-4062573467
"The Latest Knowledge of Helicopters", A. Tsubota, Science Eye New Book, ISBN 978-4797353341
5.
Requirements (Assignments)
This lecture has many parts in common with the flight dynamics of fixed wing aircraft. Students who learned “Introduction to Aeronautical Engineering,” and/or “Introduction to Flight Dynamics” are encouraged to refer to or review them.
Please prepare with the materials used in this lecture that will be uploaded on the LMS. (Half an hour)
Depending on the content of the lecture, some task will be asked to submit. Please follow the instructions and submit. (1 hour)
6.
Note
As mentioned in the above, lecture is based on the knowledge of aviation engineering, so it is recommended to take “Introduction to Aeronautical Engineering,” and/or “Introduction to Flight Dynamics.”
7.
Schedule
1. Overview of helicopter: Learn about the history of the helicopter, basic system configuration, applications, etc.
2. Rotor system: Learn about the main rotor mechanism, hinges, hubs, swash plates, etc.
3. Control system, transmission: understand the mechanism to fly the helicopter
4. Helicopter dynamics: Learn basic mechanics including aerodynamics to understand helicopter maneuver
5. Fundamentals of flight theory: Learning about momentum theory and wing element theory, which are the basis of rotor theory
6. Hovering: Learn about balance of aerodynamic force and attitude control in hovering
7. Forward flight: Learn about aerodynamics, aircraft balance and blade movement during forward flight
8. Autorotation: Understand rotor movement and HV diagram during autorotation
9. Power curves and Flight performance: Learn about power in helicopter flight and key performance related to power curves
10. Tail rotor: Learn how helicopter tail rotor works
11. Stability and maneuverability: Learn about helicopter flight stability and maneuverability features
12. Structure and landing gear: Learn helicopter structure and landing gear characteristics (including differences with fixed wing aircraft)
13. Engines and power systems: Learn about the features of engines used in helicopters and the outline of power systems
14. Vibration and noise: Understand the causes of vibration of the helicopter, braking devices, and efforts to reduce noise
15. Summary and exams: Summarize the entire lecture and deepen understanding of the helicopter