Research on Free-flight Validation Test of Stall Characteristics for Commuter Category Airplanes

Autor: ZHANG Jiaqi, SU Jianbo, WANG Shifei, QIU Yuhao
Jazyk: čínština
Rok vydání: 2020
Předmět:
Zdroj: Hangkong gongcheng jinzhan, Vol 11, Iss 6, Pp 836-842 (2020)
Druh dokumentu: article
ISSN: 1674-8190
DOI: 10.16615/j.cnki.1674-8190.2020.06.011
Popis: It is found that the rolling characteristic after airplane stall is rapidly changed, when the wind tunnel test prediction is conducted for the small commuter category airplanes. On the basis of analyzing the wind tunnel test results of the airplane, the stalling characteristic method that the stall strips is added on the wing is adop-ted, and the flight verification is performed by using free-flight test of scaled-model. After adding stall strips on the wing and the original wing, the flight results are analyzed under the states of cruising structure and landing structure. The results show that the scaled-model free-flight test can verify the prediction results of the wind tunnel test, and the stalling characteristic improved method by adding stall strips can improve the stall characteristic of airplane.
Databáze: Directory of Open Access Journals