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Development of Aircraft Shock Absorbers Using Friction as the Energy Dissipator.

AD476615

Publication Date	1965
Personal Author	Fricker, W. W.
Page Count	82
Abstract	The purpose of this study is to evolve and evaluate a number of preliminary aircraft landing gear designs or concepts utilizing shock absorbers based on friction energy absorption methods adaptable to high temperature use (1000 F and up). Initial studies developed as many concepts as possible, without attempting to size components, but merely to portray an idea. Four concepts were selected from the initial study and preliminary designs of the selected concepts were prepared based on landing and take-off characteristics of the USAF F-100 aircraft. Scale model drawings were then developed based on the full scale landing gear deisgns to experimentally evaluate the proposed designs. Data indicates that friction methods have extremely high energy absorption capacities, that the coefficient of friction is relatively insensitive to temperature variations and that a centrifugally controlled friction device has sufficient advantages to warrant further research effort. (Author)
Keywords	Landing gear Shock absorbers Friction Design High temperature Jet fighters Aircraft landings Takeoff Centrifugal fields Clutches Bellows Springs Bearings Energy Deflection Velocity Acceleration Heat resistant materials Wear resistance Control systems Models(Simulations) F-100 aircraft
Source Agency	Non Paid Delimited ADS
NTIS Subject Category	51C - Aircraft 46E - Structural Mechanics
Corporate Authors	Cleveland Pneumatic Tool CO Ohio
Document Type	Technical Report
Title Note	Final rept. Jul 64-Apr 65.
NTIS Issue Number	197715
Contract Number	AF33(615)-2033

Development of Aircraft Shock Absorbers Using Friction as the Energy Dissipator.

Development of Aircraft Shock Absorbers Using Friction as the Energy Dissipator.
AD476615

Publication Date	1965
Personal Author	Fricker, W. W.
Page Count	82
Abstract	The purpose of this study is to evolve and evaluate a number of preliminary aircraft landing gear designs or concepts utilizing shock absorbers based on friction energy absorption methods adaptable to high temperature use (1000 F and up). Initial studies developed as many concepts as possible, without attempting to size components, but merely to portray an idea. Four concepts were selected from the initial study and preliminary designs of the selected concepts were prepared based on landing and take-off characteristics of the USAF F-100 aircraft. Scale model drawings were then developed based on the full scale landing gear deisgns to experimentally evaluate the proposed designs. Data indicates that friction methods have extremely high energy absorption capacities, that the coefficient of friction is relatively insensitive to temperature variations and that a centrifugally controlled friction device has sufficient advantages to warrant further research effort. (Author)
Keywords	Landing gear Shock absorbers Friction Design High temperature Jet fighters Aircraft landings Takeoff Centrifugal fields Clutches Bellows Springs Bearings Energy Deflection Velocity Acceleration Heat resistant materials Wear resistance Control systems Models(Simulations) F-100 aircraft
Source Agency	Non Paid Delimited ADS
NTIS Subject Category	51C - Aircraft 46E - Structural Mechanics
Corporate Authors	Cleveland Pneumatic Tool CO Ohio
Document Type	Technical Report
Title Note	Final rept. Jul 64-Apr 65.
NTIS Issue Number	197715
Contract Number	AF33(615)-2033