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

behavioUr sIMULATION of light mobile platform under the influence of integrated weapon’s recoil force

nINA ŽIVANOVIĆ

Military Technical Institute, Ratka Resanovića 1, 11000 Belgrade, Serbia
tel: + 381 64 51 59 605, e-mail:nina.zivanovic.kg@gmail.com

Aleksandar kari

Military Acadamy – University of Defence, Pavla Jurišića Šturma 33, 11000 Belgrade, Serbia
tel: +381 66 87 00 683, e-mail: aleksandarkari@gmail.com

Abstract:To determine influence on light mobile platform whenfiring out of integrated weapon, oscillations of vehicle’s centre of  gravity are virtually observed. Resistance force that transfers to the platform is calculated based on the internal ballistics data of integrated weapon. In order to study axial and angular displacements of vehicle’s centre of gravity under the influence of weapon recoil energy, dynamical model of system with three degrees of freedom is used. Mathematical model of oscillations is defined using the Lagrange’s equations of the second order. System of differential equations is numerically solved in MATLAB for real firing conditions and vehicle configuration. Coordinates of weapon mount and elevation and azimuth angles are varied and the results are analyzed.

Keywords: simulation, oscillations, integrated weapon, wheeled vehicle.