THEORY AND PRACTICE OF SOLID PROPELLANT ROCKET MOTOR
Aim of the Course:
Purpose of the course is to obtain knowledge in calculation and design of solid propellant rocket motor. The lectures cover physics of rocket motor, flow through the nozzle, grain and igniter de-sign. Numerical examples will be run to illustrate the application of theory.
Who should attend?
The course is intended for university students, engineers – researchers in the research institu-tions and engineers in the productions factories. It is basic course in the field of rocket design. It is assumed that attendees of course have good knowledge in mathematics and gas-dynamics and computer skills.
Duration:
Duration is four weeks (twenty working days); 100 lectures (one lecture duration 45min), but other arrangement is possible.
Course Outline:
1. The Basic of Solid Propellant Rocket Motor
Main components of solid propellant rocket motor. Definition of rocket motor main parameters – flow rate, thrust, total impulse and specific impulse.
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2. Solid Rocket Propellants
Types of propellants: double base, composite and modified double base propellants. Physical-chemical characteristics of propellants. Burning of propellant.
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3. Internal Ballistics of Solid Propellant Rocket Motor
Fundamentals of combustion. Burning rate. Basic equations defining of steady process in a rocket motor. Conditions for stable burning. Internal ballistic calculation. Calculation of the basic parameters and performance.
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4. Solid Propellant Grain Design
Requirements for solid propellant rocket motor. Analysis and requirements for propellant grain. Grain configuration. Preliminary design optimization. Grain configuration selection. Propellant selection. Structural analysis of grain.
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5. Flow through Nozzle
Nozzle theory. Thermodynamic relation. Nozzle construction. Variable thrust. General consider-ation of nozzle design. Determination of nozzle throat, convergent and divergent section. Con-struction and material. Heat transfer and thermal insulations.
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6. Ignition Systems
General consideration of ignition systems. The rule of plug. Calculation of ignition system pa-rameters. Testing of ignition systems.
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7. Structure Design
General requirements. Loads due to high acceleration in the gun barrel. Determination of maxi-mal loads and safety factors. Calculating of stresses in motor case. Heat transfer.
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8. Static Testing of Solid Propellant Rocket Motors
Types of tests. Test facilities. Instrumentations and data management.
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9. Calculation Examples
Calculation of internal ballistic parameters of one rocket motor by Matlab program IBRocketMo-tor_M0. Considerations of rocket motor performances.
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Lecturer: Dr Velibor Jovanovic