Accession Number : ADA293888
Title : F/A-18 IFOSTP Fatigue Test Airbag Load Determination on the Vertical and Horizontal Tails.
Corporate Author : DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)
Personal Author(s) : Lee, Michael F.
PDF Url : ADA293888
Report Date : JAN 1995
Pagination or Media Count : 55
Abstract : A simplistic method for determining discrete loads to approximate a distributed load is shown to have a number of deficiencies, both theoretically and in its practical results. A new method which utilizes Lagrange multipliers is derived and applied to an aerodynamic pressure distribution with improved results. The concept of weighting functions is introduced as a means of comparing the different methods in absolute terms. Weighting functions are also used to assess the effect of removing a load actuator from the standard configuration. (AN)
Descriptors : *AERODYNAMIC LOADING, *JET FIGHTERS, *FATIGUE TESTS(MECHANICS), *TAILS(AIRCRAFT), MATHEMATICAL MODELS, COMPARISON, WEIGHTING FUNCTIONS, SHEAR STRESSES, LEAST SQUARES METHOD, DEFICIENCIES, AERODYNAMIC FORCES, AUSTRALIA, WING BODY CONFIGURATIONS, PRESSURE DISTRIBUTION, TORQUE, LAGRANGIAN FUNCTIONS, AERIAL RUDDERS, TRAILING EDGES, BENDING MOMENTS.
Subject Categories : Aerodynamics
Attack and Fighter Aircraft
Distribution Statement : APPROVED FOR PUBLIC RELEASE