Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Active constraint technology on aircraft load calibration test
| DOI: | 10.11809/bqzbgcxb2024.03.033 |
| Keywords: | aircraft load calibration test; active constraint; load magnitude; load model accuracy; flight test |
| Abstract: | Based on the previous research of aircraft load calibration tests with support and constraint methods, and considering the structural characteristics of an aircraft, an active constraint method for load calibration was proposed. Firstly, force analysis of aircraft load calibration was conducted on the active constraint method and traditional landing gear constraint method, and theoretical models of the two constraint methods were established. Secondly, two constraint methods for wing load calibration comparison tests were designed, and an implementation process for active constraint load calibration test was proposed. Finally, the active constraint method was validated effectively by combining wing load calibration test and flight test of an aircraft. Compared with traditional landing gear constraint method, the result showed that the active constraint method solved the problem of measuring the wing root section load on wing body integrated structure with landing gear layout. And the magnitude of the wing load calibration test was increased by 41%, and the error of the wing load model can be controlled within 3%. |
| Published: | 2024-03-28 |