Gust load conditions for fatigue tests based on a continuous gust concept

Newly designed aircraft structures must be subjected to full scale fatigue/damage tolerance testing. The present paper describes an automated procedure for the generation of fatigue test load sequences, with specific reference to gust loads. The procedure uses a continuous gust concept. A statistical gust model, based on gust data recently published by FAA, is proposed. Specific attention is paid to the determination of the incremental load distributions due to gust on PSD basis.