The flight load measurement is a test item that is necessary to verify the structural integrity of the aircraft and complete the aircraft's finalization. In the flight load measurement based on the strain method, load equation of strain and load is constructed by a load calibration test, and then the measured flight strain is substituted into the load equation to obtain the flight load. Since the geometry of a certain type of aircraft's flap drive crank is irregular and has axial bending and asymmetrical cross section, it is difficult to measure the load of the flap drive crank. Based on the motion mechanism of the flap drive crank and the force transmission path of the flap control mechanism, the crank force is analyzed and a crank load measurement method is proposed. The method is verified by the virtual load calibration test. The results show that the method is correct and effective.
MENG Min
,
JIANG Xian
,
JIA Tianjiao
. A flap crank load measurement method based on virtual load calibration test[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020
, 41(2)
: 223408
-223408
.
DOI: 10.7527/S1000-6893.2019.23408
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