Design, construction, and modeling of aircraft door sealing plate based on SMAs

Autor:	Chen Zhang, Renhao Liu, Chongcong Tao, Chao Zhang, Hongli Ji, Jinhao Qiu
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Aircraft door sealing plate shape memory alloy inhomogeneous strain Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	International Journal of Smart and Nano Materials, Vol 13, Iss 3, Pp 481-503 (2022)
Druh dokumentu:	article
ISSN:	19475411 1947-542X 1947-5411
DOI:	10.1080/19475411.2022.2103598
Popis:	ABSTRACTIn this work, a novel aircraft door sealing structure driven by shape memory alloys (SMAs) is proposed that offers much improved sealing capability than traditional sealing plates. The two-way shape memory effect (TWSME) of SMAs is utilized so that the proposed sealing plate can change its shape through heating and cooling of the driving SMA unit. Considering the inhomogeneous temperature and recovery strain field the SMA exhibits while being trained, a modified finite element (FE) model of the sealing structure is established to predict the deflection of the SMA-based sealing plate. Finally, verification experiments are carried out. The experimental results show good agreement with the FE predictions, indicating good accuracy of the modified FE model as well as the effectiveness of the proposed sealing structure.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/a310d856c9954ce5a2239fac775904ab Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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