Course detail

Flight Mechanics II

FSI-OML-AAcad. year: 2019/2020

Classical theory of the stability and control of aircraft. Development of general equations of motion for an atmospheric aircraft. Classical small perturbation equations of motion. Aircraft state equations. Aerodynamic stability derivatives -meaning and estimation. Dynamic stability modes and their influence on aircraft handling. Longitudinal and lateral-directional stability of aircraft. Controllability and manoeuvrability. Trim. Requirements on the flying and handling qualities. Aircraft as a dynamic system.

Language of instruction

English

Number of ECTS credits

Mode of study

Not applicable.

Guarantor

doc. Ing. Vladimír Daněk, CSc.

Department

Institute of Aerospace Engineering (LÚ)

Offered to foreign students

Of all faculties

Learning outcomes of the course unit

Familiarizing with basic criteria for flying characteristics of an atmospheric aircraft. Qualitative and quantitative considering of flying handling characteristics, stability and controllability regarding the design and optimal use of an aircraft.

Prerequisites

The basics of mathematics - differential and integral calculus, common differential equations. The basics of common mechanics ; force effect on a body, kinematics, dynamics.

Co-requisites

Not applicable.

Planned learning activities and teaching methods

The course is taught through lectures explaining the basic principles and theory of the discipline. Exercises are focused on practical topics presented in lectures.

Assesment methods and criteria linked to learning outcomes

Conditions for obtaining the course-unit credit: participation in the course (80% at the minimum), presentation of calculation tasks records. The exam has written (the essential one) and oral parts. Evaluation process fulfils the University requirements.

Course curriculum

Not applicable.

Work placements

Not applicable.

Aims

The goal is to explain the basic flight mechanics of atmospheric aircraft. Familiarizing students with the methods of calculation of the stability and aircraft control. Students will also learn to judge the influence of aircraft design parameters on its flying characteristics.

Specification of controlled education, way of implementation and compensation for absences

Lectures are optional. Exercises are compulsory, and the attendance (80% at the minimum) is controlled and recorded. The absence (in justifiable cases) can be compensated by personal consultation with the lecturer and elaboration of individually assigned topics and exercises. Individual tasks must be finished and handed in the credit week at the latest.

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Cook,M.V. Flight Dynamics Principles. London: Arnold, 1997. 397 s. ISBN 0-470-23590-X.
Etkin,B.- Reid,L.D. Dynamics of Flight - Stability and Control, 3.vyd., New York: John Wiley & Sons, Inc., 1996. 382 s. ISBN 0-471-03418-5. (EN)
McCormick,B.W. Aerodynamics,Aeronautics and Flight Mechanics. New York: John Wiley & Sons, Inc., 1979. 652 s. ISBN 0-471-03032-5. (EN)

Recommended reading

Cook,M.V. Flight Dynamics Principles. London: Arnold, 1997. 397 s. ISBN 0-470-23590-X. (EN)
Etkin,B.- Reid,L.D. Dynamics of Flight - Stability and Control, 3.vyd., New York: John Wiley & Sons, Inc., 1996. 382 s. ISBN 0-471-03418-5. (EN)

Classification of course in study plans

  • Programme M2I-A Master's

    branch M-STL , 2 year of study, winter semester, compulsory

  • Programme M2I-Z Master's

    branch M-STI , 1 year of study, winter semester, recommended course

Type of course unit

 

Lecture

39 hod., optionally

Teacher / Lecturer

Ing. Jiří Matějů

Syllabus

1. Introduction. Basic definitions.
2. Longitudinal static stability of airplane.
3. Lateral-directional static stability of airplane.
4. Longitudinal static control and trim of airplane.
5. Longitudinal manoeuverability of airplane.
6. Lateral-directional static control of airplane.
7. Flight with asymmetric thrust. Minimum control airspeed.
8. Lateral-directional manoeuverability of airplane.
9. General equations of airplane total motion.
10.Linearized perturbation equations of motion for solution of dynamic stability.
11.Longitudinal dynamic stability with fixed-control. Short-period and phugoidal motion.
12.Lateral-directional dynamic stability. Spiral and Dutch roll motion.
13.Special flight regimes. Stall and spin characteristic.

Exercise

13 hod., compulsory

Teacher / Lecturer

Ing. Jiří Matějů

Syllabus

1. Control-fixed neutral point of airplane and static margin calculation.
2. Control-free neutral point of airplane and static margin calculation.
3. Control-fixed manoeuvre point of airplane and manoeuvre margin calculation.
4. Control-free manoeuvre point of airplane and manoeuvre margin calculation.
5. Control force gradient calculation.
6. Control force gradient calculation.
7. Control force per g calculation.
8. Control force per g calculation.
9. Minimum control airspeed calculation.
10.Short-periodic longitudinal motion calculation.
11.Phugoidal longitudinal motion calculation
12.Lateral-directional motion calculation - spiral motion.
13.Lateral-directional motion calculation - Dutch roll.