Significant loads may be imparted to the helicopter and deck during landings, particularly in high sea state conditions and degraded Visual Cue Environments (VCE).
Using OnDeck AVT can estimate loads transferred through the helicopter as well as the flight deck for a wide range of ship motion and helicopter impact conditions.
Simulation showing a Chinook landing on a LHD ship. The OnDeck code allows a wide range of helicopter and ship conditions to be accurately modeled accounting for the motion of the deck, helicopter attitude, descent and drift rates as well as rotor and control input effects.
Damage to the helicopter or failure of the deck structure can result in flight deck inoperability, and the potential risk of fire and serious injury.
Shown at right is a typical results from a deck strength study..
Careful optimisation and validation of the helicopter undercarriage model dynamic components in necessary before such analysis can be performed. AVT performs standalone drop test analysis against manufacturers' drop test data to qualify the models.
A Seahawk approaches the landing deck. AVT has conducted landing analysis for the Black Hawk, Seasprite and MRH90 helicopters.