Dynamics Workshop On Rotor Vibratory Loads Prediction

摘要

This paper reviews the results of a Dynamics Workshop focusing on the correlation of vibratory hub load predictions, from eight advanced aeroelastic codes, with Lynx flight test measurements. Simple "Baseline Models" are first established with near uniform characteristics for all codes, to enable vibration prediction improvements to be quantified as the codes are upgraded to "Current Technology" standard. The effect on vibration correlation are illustrated for various changes in analytical nod- els including; free wades, fuselage upwash, unsteady aerodynamics and Finite Element versus Modal methods.