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http://dx.doi.org/10.20910/JASE.2021.15.1.80

Transformation of Flight Load to Test Load for the Static Load Test of External Fuel Tank for Aircraft  

Kim, Hyun-gi (Korea Aerospace Research Institute)
Kim, Sung Chan (Korea Aerospace Research Institute)
Park, Sung Hwan (Hanwha Aerospace Corporation)
Ha, Byoung Geun (Hanwha Aerospace Corporation)
An, Su Hong (Hanwha Aerospace Corporation)
Kim, Jun Tae (Hanwha Aerospace Corporation)
Publication Information
Journal of Aerospace System Engineering / v.15, no.1, 2021 , pp. 80-85 More about this Journal
Abstract
In this study, for conducting a static load test of an external fuel tank used for an aircraft, the flight load acting on the external fuel tank was converted to the test load and the suitability of the converted test loads was confirmed. In order to calculate the test load from the flight load, the external fuel tank was divided into several sections. Shear load, moment by unit shear load, and unit moment were calculated for each section. Test loads for each section were then calculated by computing the shear load, the moment of each section, and flight load condition. In actual static load tests, it might not be possible to impose the test load in the calculated position due to physical constraints. Therefore, after determining positions in which the load could be imposed in the actual test, the test load calculated for each section was redistributed to selected positions. Finally, a test load plan was established by applying a whiffle tree to enhance the efficiency of the test performance while making it easier to operate the actuator. The reliability of the test load plan was verified by comparing it with flight load conditions.
Keywords
Actuator; External Fuel Tank; Static Load Test; Test Load; Whiffle Tree;
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Times Cited By KSCI : 1  (Citation Analysis)
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