Taxiing Load Analysis of Aircrafts Based on Virtual Prototype

Abstract:

Traditional aircraft ground maneuver dynamic modeling always neglects the nonlinear characteristics of the shock absorbing system and makes simplifying assumptions on the aerodynamics. Thus, it is difficult to study complicated aircraft maneuvers. Experiment is direct and effective, but difficult to conduct and it’s cost is very high. A320, A330 and A380 virtual prototype models were developed in ADAMS/Aircraft and taxiing simulation was conducted by applying different roughness level of runway models which were generated according to the power spectral density equation in GB/T70311986. Simulation results show a good linear relationship between dynamic load and International Roughness Index (IRI), and magnitude of dynamic load increases firstly then decreases as taxiing speed increases. Moreover, dynamic load coefficient calculation formulas were proposed. The paper can be a reference for evauation, maintenance and mechanical properties research of airport pavement.

Key words:virtual prototype; airport pavement; roughness; dynamic load coefficient