The test technology of twin-sting supports uses twin balances to measure the aerodynamic forces and moments of the full model. The twin-sting supports under wings, with little interference to the flow around the rear fuselage, are desirable for accurate measurements of the rear fuselage and the support interference evaluation test. In addition, for the support difficulty in high-speed wind tunnel tests of twin-body aircraft (laminar configuration verifier), the twin-sting supports can inherit the advantages of single tail supports to the largest extent, and have capabilities of longitudinal and horizontal tests within a wide range. Based on the principle of twin balances measurement, we develop the twin-sting supports test technology for 1.2 m high speed wind tunnels, and validate it by combined loading tests and wind tunnel tests. The test results of the twin-sting supports are reasonable and reliable, and the accuracy of the repetitive data meets the national military standard. This paper describes the twin-sting supports system under the wing of 1.2 m high speed wind tunnels, and introduces the application of its test technology to the 1.2 m high speed wind tunnel.
YI Bingli
,
LIU Boyu
,
WANG Zhengqu
,
ZHANG Tiejun
,
LU Dan
,
ZHAO Yan
. Test technology of twin-sting supports in 1.2 m high speed wind tunnel[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022
, 43(11)
: 526794
-526794
.
DOI: 10.7527/S1000-6893.2022.26794
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