CAJ | 학술논문

在 FL-23风洞中开展了80°/65°双三角翼大迎角下的滚转特性研究，包括静态测力试验，动导数试验和自由滚转试验，通过静态测力试验及动导数试验获得了双三角翼模型在大迎角条件下的滚转力矩特性以及动导数特性，从而对双三角翼大迎角条件下的滚转运动特性进行了预测，最后通过自由摇滚试验对预测结果进行了验证。研究结果表明随着模型迎角的增加，双三角翼呈现不同的滚转运动形态，包括静态稳定、双周期震荡、准极限环摇滚，通过静态气动力及动导数可以较准确地对模型的运动形态及对应的迎角范围进行预测。
재 FL-23풍동중개전료80°/65°쌍삼각익대영각하적곤전특성연구，포괄정태측력시험，동도수시험화자유곤전시험，통과정태측력시험급동도수시험획득료쌍삼각익모형재대영각조건하적곤전력구특성이급동도수특성，종이대쌍삼각익대영각조건하적곤전운동특성진행료예측，최후통과자유요곤시험대예측결과진행료험증。연구결과표명수착모형영각적증가，쌍삼각익정현불동적곤전운동형태，포괄정태은정、쌍주기진탕、준겁한배요곤，통과정태기동력급동도수가이교준학지대모형적운동형태급대응적영각범위진행예측。
The free to roll test,static force balance test and dynamic derivative test of 80°/65° double delta wing at high angle of attack are conducted in FL-23 high speed wind tunnel,which dynamic behaviors are forecast based on the static roll moment coefficients and dynamic deriva-tive.The results show that dynamic motions obtained on a double delta wing was free to rotate a-bout its longitudinal axis at different angles of attack.Different dynamic rolling motions inclu-ding the static stability,double periodic oscillation,quasi-limit-cycle rock motion were observed. The forecast results meet the free to roll result well.