Development of Improved Gust Load Criteria for U. S. Air Force Aircraft 670617

Improved structural design criteria for gust loads on aircraft are presented based on the continuous turbulence concept and probabilistic considerations. It is proposed that these improved criteria may replace the heretofore used discrete gust concept. The improved criteria consist of a rational-probability analysis backed up by a design envelope analysis. Both of these analyses are related to the strength level of a previously successful commercial transport and employ power spectral density techniques to establish design values. In conjunction with the rational-probability analysis, an acceptable failure probability is specified, and, for the design envelope analysis, a design limit gust velocity is established. Finally, the turbulence field parameters that may be used for design calculations on new aircraft are specified.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.