REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

AN EXAMPLE OF THE SIDE FORCE DETERMINATION
IN THE ROCKET MOTOR THRUST VECTOR CONTROL SYSTEM

Nikola GligorijeviĆ

Military Technical Institute, Belgrade, nikola.gligorijevic@gmail.com

SAŠA ŽIVKOVIĆ

Military Technical Institute, Belgrade, sasavite@yahoo.com

SREDOJE SUBOTIĆ

Military Technical Institute, Belgrade, sredoje.subotic@gmail.com

STEVAN KOZOMARA

Military Technical Institute, Belgrade

MOMČILO NIKOLIĆ

Military Technical Institute, Belgrade

SLOBODAN ČITAKOVIĆ

Military Technical Institute, Belgrade

Abstract: The side force is one of the main parameters in the calculating procedure for the maneuvering capability of a thrust vector controlled (TVC) rocket. It depends on the rocket motor thrust and the efficiency of the applied kind of  TVC system. There are many different difficulties to make the side force measurements fully reliable. In this work, the indirect method was applied to evaluate the TVC side force for the antitank guided missile Malutka. Two types of  the thrust and total impulse measurements were made in the rocket motor static tests: with and without turning the TVC system. The difference between the two is used to calculate the side force applying the approximate classic engineering method supported by more reliable computational fluid dynamics method (CFD).

Key words: side force, thrust, rocket motor, static test, TVC, CFD  method.