Field Gun Recoil Track Design

 
  • A field gun light enough to be suspended beneath a helicopter was designed.

  • A ‘down-hill’ firing load case caused the gun to lift off the ground.

  • The ADAMS model of the gun included flexibility and a soil hysteresis model.

  • The shape of the barrel recoil track was varied in order to minimise the lift-off response during the ‘down-hill’ firing condition.

Submarine Missile Launch

 
  • Submerged vertical launch of ballistic missiles was required.

  • Given that the submarine may be moving, jamming of the missile in the launch tube due to hydrodynamic forces was a possibility.

  • An ADAMS model of the missile and tube was created.

  • The contacts between the missile and tube were modelled together with the hydrodynamic forces as the missile emerged into the flow.

  • Parameter studies were conducted to investigate the force required to launch successfully in varying operating conditions.