De-icing of general aviation aircraft is usually realized by chemical or thermal processes. These lead to an increase in fuel consumption or usage of electrical energy. Mechanical de-icing is a way to significantly reduce this consumption. In mechanical de-icing, a surface is deformed so that the required failure mechanisms are induced in the ice, causing it to detach. In this paper, the release behavior of ice on a carbon fiber reinforced plastic (CFRP) layer is investigated. The CFRP layer consists of two plies, each \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$0.3\,\textrm{mm}$$\end{document} thick. A numerical calculation is performed to determine natural frequency and required amplitudes of the vibration. In addition, the relationship between the various failure mechanisms of ice and the ice layer thickness, as well as the control values are determined. Tests are also being conducted to demonstrate the feasibility of mechanical de-icing. For this purpose, the surface of a CFRP layer is iced with water in a climate chamber at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$-20\,\mathrm {^\circ C}$$\end{document}. A modal shaker is connected to the CFRP and generates the required displacements at desired frequencies to observe detachment of the ice.
Numerical Analysis of a Mechanical De-icing Process by Low Frequency Oscillation of a CFRP Layer
Computational Methods
Advances in Computational Methods and Technologies in Aeronautics and Industry ; Kapitel : 15 ; 209-218
2022-12-13
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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