Fundamentals of projectiles propulsion

ID: 1327
Course type: vocational and applied
Course coordinator: Elek M. Predrag
Lecturers: Elek M. Predrag, Jevtić T. Dejan
Contact: Elek M. Predrag
Level of studies: B.Sc. (undergraduate) Academic Studies – Mechanical Engineering
ECTS: 6
Final exam type: written
Department: Department of Weapon Systems

Lectures

Goal

Introducing students to the basics of projectile propulsion, including classic and rocket propulsion. Study of fundamental processes that occur during firing in the gun barrel and in the rocket motor chamber. Influence of characteristics of propellants on firing processes. Setting up a system of equations describing these processes and methods for solving the system. Application of propulsion software packages. Design of propellant systems.

Outcome

Student gets knowledge of principles and basic equations of the propulsion. Student is trained for the calculation of basic parameters of interior ballistics and rocket propulsion. Student acquires fundamentals for subsequent detailed study of various types of propulsion.

Theoretical teaching

1. Introduction to propellant systems. 2. Classification of propulsion systems (classical and rocket). 3. Gunpowder. Propellant charge. Physical, chemical and ballistic characteristics of gunpowder. Combustion of gun propellant. 4. Basic processes and laws during the firing process. The main tasks of the internal ballistics. 5. Energy balance during the firing process. The basic equations of interior ballistics. Corrective formulas of interior ballistics. 6. Basics of reactive propulsion; classification of reactive propulsion (air-breating and rocket); classification of rocket propulsion (liquid, solid and hybrid). 7. The basic equations of propulsion systems performances. 8. Fundamentals of air-breathing propulsion. 9. Fundamentals of rocket engines with liquid propellants. 10. Fundamentals of rocket motors with solid propellants. 11. Software packages for reactive motor performance calculation.

Practical teaching

1. Combustion of gunpowder. Examples of calculations 2. The main tasks of the interior ballistics. Energy balance during the firing. The basic equations of interior ballistics. Solving problems. 3. Corrective formulas of interior ballistics. Selected examples. 4. The basic equations of propulsion systems performances. Problems 5. Fundamentals of rocket engines with liquid propellants. Selected examples 6. Fundamentals of rocket propulsion with solid propellants. Selected examples 7. Software packages for reactive motor performance calculation. Examples and demonstrations.

Attendance requirement

No obligatory prerequisites. Passes exam preferred: Fundamentals of weapon system design.

Resources

Blagojevic, Dj., Milinovic, M.: Scripts for lessons - Rocket propulsion

Assigned hours

Total assigned hours: 75

Active teaching (theoretical)

New material: 20
Elaboration and examples (recapitulation): 10

Active teaching (practical)

Auditory exercises: 12
Laboratory exercises: 6
Calculation tasks: 12
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Knowledge test

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 10
Test: 0
Final exam: 5

Knowledge test (100 points total)

Activity during lectures: 10
Test/test: 60
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Final exam: 30
Requirement for taking the exam (required number of points): 35

Literature

Jaramaz, S., Mickovic, D.: Interior ballistics, Faculty of Mechanical Engineering, Belgrade, 2011. (in Serbian); Sutton, G.P., Biblarz, O.: Rocket propulsion elements, 7 ed, John Wiley and Sons, 2001.