Spacial Simulation of Shipboard Operations for Skid-equipped Rotary-wing Aircraft

Abstract

SRAMSS (Skid-equipped Rotary-wing Aircraft Manoeuvring and Securing Simulation) is a simulation package aimed at generating transient aircraft behavior to study the dynamic interface between skid-equipped rotary-wing aircraft and ship decks during shipboard operations in elevated sea and weather conditions. The package incorporates dynamic finite element modelling into Kane's method for dynamics equations, contact mechanics with oriented dynamic response including the LuGre friction model to capture complex friction behavior, aerodynamic drag, and blade element theory to generate induced thrust and moments from the rotor disc. An overview of the model formulation, as well as several verification and validation test cases are presented and discussed.

Continuous Appropriately-Oriented Collision Detection Algorithm for Physics-Based Simulations

“…The algorithm was originally developed as part of a contact mechanics model for larger scope of research in dynamic interface analysis (DIA)the characterization and analysis of the dynamic interaction between ship decks and vertical take-off aircraft under varying hydrodynamic, aerodynamic, and mechanical conditions. The research yielded the software package SRAMSS-2D (Skid-equipped Rotary-wing Aircraft Manoeuvring and Securing Simulation), which simulates the landing, securing, and manoeuvring of ship-embarked rotary-wing aircraft with skid tube landing gear [7].…”