Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft
The deflecting to airflow flap of civil aircraft are generally driven by complex multi-hinge mechanisms in space. According to the requirements of the airworthiness clause CCAR25.671, it is necessary to carry out research on the mechanism characteristics under typical faults. Firstly, a digital prot...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Advances in Aeronautical Science and Engineering
2023-08-01
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| Series: | Hangkong gongcheng jinzhan |
| Subjects: | |
| Online Access: | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2022148?st=article_issue |
| _version_ | 1797682245213880320 |
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| author | FENG Yunwen HE Zhiyu TANG Jiaqiang XUE Xiaofeng WANG Yanqiu |
| author_facet | FENG Yunwen HE Zhiyu TANG Jiaqiang XUE Xiaofeng WANG Yanqiu |
| author_sort | FENG Yunwen |
| collection | DOAJ |
| description | The deflecting to airflow flap of civil aircraft are generally driven by complex multi-hinge mechanisms in space. According to the requirements of the airworthiness clause CCAR25.671, it is necessary to carry out research on the mechanism characteristics under typical faults. Firstly, a digital prototype of the mechanism motion is constructed, and the hinge point of the rigid multi-hinge mechanism is associated with the flexible flap body by using the RBE2 unit, and the rigid-flexible coupling dynamic model of the flap mechanism is established. Then, under three aerodynamic load conditions of cruise, take-off and landing, two typical faults, hinge jamming and one-side failure of control system, are simulated by adjusting the hinge friction coefficient and setting one-side driving failure. Finally, the variation law of driving torque and hinge point load is analyzed. The results show that:when the hinge is stuck, the inner drive link ear piece is stretched and damaged; when the inner drive fails, the radial load at the hinge point of the outer rocker arm increases significantly. In practice, we should focus on the middle joint of the outer rocker arm of this type of flap. The radial and axial load-bearing capacity of the bearing avoids the situation of separate manipulation of the outer mechanism, and at the same time, it is necessary to increase the torque protection for the entire drive system. |
| first_indexed | 2024-03-11T23:56:46Z |
| format | Article |
| id | doaj.art-240417d140034de48fbaf9090d333285 |
| institution | Directory Open Access Journal |
| issn | 1674-8190 |
| language | zho |
| last_indexed | 2024-03-11T23:56:46Z |
| publishDate | 2023-08-01 |
| publisher | Editorial Department of Advances in Aeronautical Science and Engineering |
| record_format | Article |
| series | Hangkong gongcheng jinzhan |
| spelling | doaj.art-240417d140034de48fbaf9090d3332852023-09-18T07:34:36ZzhoEditorial Department of Advances in Aeronautical Science and EngineeringHangkong gongcheng jinzhan1674-81902023-08-01144859310.16615/j.cnki.1674-8190.2023.04.0920230409Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraftFENG Yunwen0HE Zhiyu1TANG Jiaqiang2XUE Xiaofeng3WANG Yanqiu4School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaSchool of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, ChinaAircraft Structure and Stress Division, Shanghai Aircraft Design and Research Institute, Shanghai 201210, ChinaThe deflecting to airflow flap of civil aircraft are generally driven by complex multi-hinge mechanisms in space. According to the requirements of the airworthiness clause CCAR25.671, it is necessary to carry out research on the mechanism characteristics under typical faults. Firstly, a digital prototype of the mechanism motion is constructed, and the hinge point of the rigid multi-hinge mechanism is associated with the flexible flap body by using the RBE2 unit, and the rigid-flexible coupling dynamic model of the flap mechanism is established. Then, under three aerodynamic load conditions of cruise, take-off and landing, two typical faults, hinge jamming and one-side failure of control system, are simulated by adjusting the hinge friction coefficient and setting one-side driving failure. Finally, the variation law of driving torque and hinge point load is analyzed. The results show that:when the hinge is stuck, the inner drive link ear piece is stretched and damaged; when the inner drive fails, the radial load at the hinge point of the outer rocker arm increases significantly. In practice, we should focus on the middle joint of the outer rocker arm of this type of flap. The radial and axial load-bearing capacity of the bearing avoids the situation of separate manipulation of the outer mechanism, and at the same time, it is necessary to increase the torque protection for the entire drive system.http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2022148?st=article_issuehigh-lift devicerigid-fiexible couplingdynamic simulationfault simulation |
| spellingShingle | FENG Yunwen HE Zhiyu TANG Jiaqiang XUE Xiaofeng WANG Yanqiu Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft Hangkong gongcheng jinzhan high-lift device rigid-fiexible coupling dynamic simulation fault simulation |
| title | Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft |
| title_full | Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft |
| title_fullStr | Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft |
| title_full_unstemmed | Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft |
| title_short | Dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft |
| title_sort | dynamics simulation research on fault conditions of deflecting to airflow flap mechanism of civil aircraft |
| topic | high-lift device rigid-fiexible coupling dynamic simulation fault simulation |
| url | http://hkgcjz.cnjournals.com/hkgcjz/article/abstract/2022148?st=article_issue |
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