AE 4600

Aircraft Stability & Control

Class

Announcement

·       MATLAB Program:

Example 28

·       MATLAB Program:

Example19

·       MATLAB Program

Example10

Example11

·

·       Syllabus

Reference

·       NTSB Aircraft Accident Report for Air Midwest Flight 5481

·       Cirrus SR20 Pilot’s Operating Handbook

·       Cirrus SR20 Airplane Information Manual

Course

Information

Class Hours:    MWF 9:30AM - 10:20AM CEAS D0210 (Parkview Campus)

Instructor:       Dr. Kapseong Ro (Email: kapseong.ro@wmich.edu) (Tel: 276 – 3412)

Office Hours:   CEAS G224, MW 10:30AM ~ 11:30AM or by appointment

Textbook:           “Dynamics of Flight: Stability & Control,” 3rd Edition, B. Etkin & L.Reid, Wiley, 1996

References:

Grading:          2 Midterm Exams         50% (25% each)

Final (Comprehensive)  30%

Homework                    20%

Catalog Description:

Analysis and synthesis of aircraft stability & control, Design of the aircraft control surfaces for different configuration to provide the required stability and control power. Man-machine interaction and effect on control surface sizing.

Course Objectives:

§  To learn how to determine static longitudinal, directional & lateral stability and control derivatives, and criteria for a stable airplane

§  To develop an ability to size the control surfaces and to determine control effectiveness of power

§  To learn how to determine the control stick forces and hinge moments

§  To learn how to determine longitudinal and lateral motion derivatives

§  To introduce the concept of dynamic stability & control, and flying qualities

Pre-requisites: AE3710 Aerodynamics II & ME3600 Control System

Tentative Topics to be covered:

1.      Aircraft Stability & Control Overview

2.      Stick-fixed and Stick-free Longitudinal Static Stability

3.      Maneuvering Flight

4.      Lateral/Directional Stability

5.      Introduction to Dynamic Stability & Aircraft Flying Qualities

“Students are responsible for making themselves aware of and understanding the University policies and procedures that pertain to Academic Honesty. These policies include cheating, fabrication, falsification and forgery, multiple submission, plagiarism, complicity and computer misuse. The academic policies addressing Student Rights and Responsibilities can be found in the Undergraduate Catalog at http://catalog.wmich.edu/content.php?catoid=24&navoid=974 and the Graduate Catalog at http://catalog.wmich.edu/content.php?catoid=25&navoid=1030  If there is reason to believe you have been involved in academic dishonesty, you will be referred to the Office of Student Conduct. You will be given the opportunity to review the charge(s) and if you believe you are not responsible, you will have the opportunity for a hearing. You should consult with your instructor if you are uncertain about an issue of academic honesty prior to the submission of an assignment or test. In addition, students are encouraged to access the Code of Honor, as well as resources and general academic policies on such issues as diversity, religious observance, and student disabilities:

·        Office of Student Conduct

·        Division of Student Affairs

·        Registrar’s Office

·        Disability Services for Students

Tentative

Schedule

AE4600 Aircraft Stability & Control: TENTATIVE Schedule

Week

#### Homework

WK1

9/5

9/7

9/9

Labor Day Recess

Introduction (Lecture 1)

1.1, 1.2, 1.3

Aerodynamic Forces & Moment on Airfoil (Lecture 2)

WK2

9/12

9/14

9/16

Finite Wing Characteristics (Lecture 3)

Reference Frames & Angle Definitions (Lecture 4)

1.6

Mean Aerodynamic Chord & Center (Lecture 5)

Appendix C

HW#1 Due

WK3

9/19

9/21

9/23

Longitudinal Equilibrium & Stability Criteria (Lecture 6)

2.1

Class Cancelled: WMU Expo Day

Neutral Point & Static Margin (Lecture 7)

2.2

WK4

9/26

9/28

9/30

Total Aircraft Lift & Moment Expression (Lecture 8)

2.3

HW#2 Due

CG Location & Tail Incidence Angle Changes (Lecture 9)

2.1, 2.2, 2.3

CG Location & Tail Incidence Angle Changes:

MATLAB Example (Lecture 10)

2.1, 2.2, 2.3

WK5

10/3

10/5

10/7

Stick Fixed Longitudinal Control (Lecture 10 & Lecture 11)

2.4

Stick Fixed Longitudinal Control: Matlab Example (Lecture 12)

2.4

Stick Fixed Longitudinal Control Summary

HW#3 Due

WK6

10/10

10/12

10/14

Hinge Moment (Lecture 13)

2.5

Stick Free Stability & Control (Lecture 14)

2.5, 2.6

HW#4 Due

Midterm Exam I (Lecture 1 ~ Lecture 12)

WK7

10/17

10/19

10/21

Stick Free Stability & Control: Neutral Point

2.5, 2.6

The Use of Tabs (Lecture 15)

2.7

Stick Force to Trim & Stick Force Gradient (Lecture 16)

2.8

WK8

10/24

10/26

10/28

Stick-Free Stability & Control: Matlab Example (Lecture 17)

2.9

Maneuverability & Elevator Angle per G (Lecture 18)

3.1

Control Force per G (Lecture 19)

3.2

HW#5 Due

WK9

10/31

11/2

11/4

Class Cancelled: ABET Meeting

3.7

Directional Stability & Control (Lecture 21)

3.8, 3,9

WK10

11/7

11/9

11/11

Lateral Stability & Control (Lecture 22, Lecture 23)

3.10, 3.11

Directional/Lateral Coupling Dynamics (Lecture 23)

3.12, 3.13

1 DOF 2nd Order System EOM & Response (Lecture 24)

ME3600 Note

HW#6 Due

WK11

11/14

11/16

11/19

Pure Pitching Motion & Pure Yawing Motion (Lecture 25)

Pure Rolling Motion & Aileron Control Power

2 DOF 2nd Order System EOM & Response (Lecture 26)

ME3600 Note

HW#7 Due

WK12

11/21

11/23

11/25

Midterm Exam II (Lecture 13 ~ Lecture 23)

(Lecture 26)

No class: Thanksgiving Day

WK13

11/28

11/30

12/2

Longitudinal Dynamics EOM: Small Disturbance

(Lecture 26)

Short Period & Phugoid Dynamics, Long. Flying Qualities (Lecture 27)

HW#8 Due

Short Period & Phugoid Dynamics, Long. Flying Qualities (Lecture 28)

WK14

12/5

12/7

12/9

Lateral Dynamics EOM (Lecture 29)

Roll Convergence, Spiral & Dutch-roll Dynamics

(Lecture 29)

Lateral Coupling Effect & Lat. Flying Qualities (Lecture 29)

HW#9 Due

Final

Tuesday, 12/13, 10:15AM ~ 12:15AM @D0210

Note:

1.     Schedule is subject to change.

2.     No late assignment will be accepted.

3.     No make-up test will be given.

4.     Any consequences caused by not attending classes are all students’ responsibility.