CAJ | 학술논문

载荷校准试验是飞机飞行载荷测量的关键技术环节，而校准试验载荷的加载方式、载荷量级的大小直接影响着载荷建模及飞行实测载荷精准度。本文提出的液压多点协调加载技术，可实现飞机机翼多点、自动控制、协调加卸载，与以往人工单点加载试验相比，载荷量级提高到了机翼限制载荷的40%以上，并可模拟机翼在飞行时气动载荷的压心分布情况进行试验加卸载，提高了试验载荷模拟飞行载荷的真实程度。采用多点协调加载数据建立机翼的载荷方程，较以往单点数据，方程精度提高了4%以上，为提高实测载荷精度奠定了坚实的基础技术。
재하교준시험시비궤비행재하측량적관건기술배절，이교준시험재하적가재방식、재하량급적대소직접영향착재하건모급비행실측재하정준도。본문제출적액압다점협조가재기술，가실현비궤궤익다점、자동공제、협조가사재，여이왕인공단점가재시험상비，재하량급제고도료궤익한제재하적40%이상，병가모의궤익재비행시기동재하적압심분포정황진행시험가사재，제고료시험재하모의비행재하적진실정도。채용다점협조가재수거건립궤익적재하방정，교이왕단점수거，방정정도제고료4%이상，위제고실측재하정도전정료견실적기출기술。
Load calibration test is the key technical link of aircraft lfight load measurement, load mode and level of the load calibration test directly affects the load modeling and lfight test load precision. Proposed the hydraulic multipoint coordinate loading technology, which can realize airfoil’s multipoint, automatic control, coordination of loading and unloading. Compared with the previous manual single point loading test, load level increased to more than 40% of wing limit load, and can conduct the loading and unloading test by simulating pressure center distribution of airfoil airload in lfight , improve the true extent of test load . Using load equation of airfoil established by multipoint coordinate loading data, compared with the previous single point data, precision of equation improve above 4%, establish a solid technical foundation to improve the accuracy of the measured load.