The development of several landing gear spring blades for lightweight aircraft is discussed. A special sandwich structure provided high longitudinal stresses in the faces and high shear stresses in the sandwich core. The length of the spring blades made a high bending stiffness necessary; therefore apart from glass fibers, reinforcements with higher Young-modulus as carbon- and Kevlar-49-fibers were also provided for tensile sandwich faces. All blades were statically and dynamically tested on a gravitational fall test-bed. Using Kevlar-49-fibers in the tensile sandwich face, the structural weight could be further reduced and damping conditions improved compared with the GRP-sandwich blade. (Author)
Theoretical and Experimental Investigations on Fiber Reinforced Plastic Landing Gear Spring Blades for Light Aircraft
1976
37 pages
Report
Keine Angabe
Englisch
Landing gear of aircraft and aircraft comprising landing gear
Europäisches Patentamt | 2021
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