The Effects of Icing on Aircraft Longitudinal Aerodynamic Characteristics

Yihua Cao, Wenyuan Tan, Yuan Su, Zhongda Xu and Guo Zhong
Additional contact information
Yihua Cao: School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
Wenyuan Tan: School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
Yuan Su: School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
Zhongda Xu: School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China
Guo Zhong: School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China

Mathematics, 2020, vol. 8, issue 7, 1-20

Abstract: To study the effects of ice accretion on the longitudinal aerodynamic characteristics of an aircraft, a two-part method for predicting longitudinal aerodynamic derivatives of iced aircraft is proposed. For the aircraft with a flight test, a parameter identification system based on maximum likelihood criterion and a longitudinal nonlinear flight dynamics model is established. For the aircraft without a flight test, an engineering prediction method of aerodynamic derivatives based on an individual component CFD calculation and narrow strip theory is established. According to the flight test data of DHC-6 Twin Otter aircraft from NASA, the longitudinal aerodynamic parameters of both clean and artificially iced aircraft are obtained. Additionally, the longitudinal aerodynamic derivatives of the iced aircraft are calculated. Then, the correctness of the prediction method is verified by comparing the calculated results with the identification results. The comparison of these results shows that the prediction method is correct and accurate, and it can be used to calculate the effects of icing on the aircraft longitudinal aerodynamic parameters.

Keywords: parameter identification; maximum likelihood identification method; aircraft icing; aerodynamic parameter (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/8/7/1171/pdf (application/pdf)
https://www.mdpi.com/2227-7390/8/7/1171/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:8:y:2020:i:7:p:1171-:d:385603

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().