FLIGHT DYNAMIC SIMULATION OF FIGHTER AIRCRAFT IN THE ASYMMETRIC EXTERNAL STORE RELEASE PROCESS

• Main Author: Safi’i (NIM : 13613030), Imam
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/22548
• Institution: Institut Teknologi Bandung

Generally, a fighter aircraft is designed to immobilize its enemies. For this purpose, a fighter aircraft usually is equipped with weapons or external stores such as missiles, bombs, rockets, etc. In case of external store release to attack enemies, a fighter aircraft undergoes a disturbance due to the loss of components with a large enough mass and a considerable aerodynamics contribution. This process may interfere the fighter’s combat operation, therefore the dynamics of a fighter aircraft in the external store release process needs to be analyzed and evaluated in the beginning of the development process of the fighter. <br /> <br /> <br /> <br /> <br /> This work presents dynamics simulation of a fighter aircraft model named Jet-Fighter Experiment (JF-1 E) in the asymmetric external store release process using MATLAB/Simulink software. Asymmetric external store release from the fighter aircraft body can cause the changes of mass, center of gravity location, inertia, forces, and moments magnitude. To accommodate the changes of these variables magnitude, the external store transient release equations are derived and then apllied to the aircraft equations of motion. <br /> <br /> <br /> <br /> <br /> The external store release process is simulated in two release scenarios. The simulation results show that the fighter aircraft responses will be different for different external store release scenarios. But the differences are not significant that both scenarios can be applied. In addition, simulations with different speed variations are also performed. The results obtained show that the external store release at high speed will give a worse response to the aircraft. Therefore, it will be safer if the external store release is carried out at low speed.