Abstract
A coupled control volume (CV) and arbitrary Lagrangian–Eulerian (ALE) model was developed to analyse the section geometry of a flexible bag of an air cushion vehicle (ACV) subjected to slamming loads. The model was validated using benchmark tests. The effects of the initial velocity, Young's modulus of the flexible bag, ballast weight, in addition to bag-to-cushion pressure ratio on the section geometry were investigated. Subsequently, an empirical equation was proposed to predict the section geometry in the ultimate state. The results obtained herein can serve as a guide for the design of a flexible bag and driver assistance system of an ACV.
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