DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click
HERE to register or log in.
Accession Number:
AD0885619
Title:
Analytical Aircraft Landing Gear Soil Interaction. Phase III. Rolling Single Wheel Analytical Sinkage Prediction Technique and Computer Program.
Corporate Author:
DAYTON UNIV OH RESEARCH INST
Report Date:
1971-05-01
Abstract:
The drag force on aircraft landing gears operating on semi- and unprepared soil runways depends on the sinkage of the tires into the soil medium. This investigation was concerned with an analytical technique for predicting the sinkage of a rolling single wheel. The tire-soil interaction was simulated by a moving surface contact pressure distribution traveling at the aircraft ground forward velocity. The soil was assumed to be an elastic-perfectly plastic medium. The lumped parameter iteration technique was used for obtaining the solution of the three-dimensional dynamic boundary value problem, and a computer program was developed. A test case evaluation was performed. The surface deflections, constant surface displacement contours, and movement paths of selected soil particles are presented. Author
Descriptive Note:
Interim rept. 17 Nov 69-17 Jun 70,
Pages:
0073
Contract Number:
F33615-70-C-1170
File Size:
0.00MB
