Aircraft wing de-icing using structural wave motion

飞行器机翼的飞行中除冰和防冰通常通过热手段来实现，或者通过从发动机放出热空气或者通过电加热，这两种方式都是耗电的并且在其适用性方面受到限制。南安普顿大学正在与电气防冰系统的领先供应商Ultra Electronics Ltd合作，开发一种基于结构声学的新型低功率技术。动态致动器用于在机翼结构中产生波浪，从而在机翼-冰界面处产生大应力，导致冰断裂。该项目将集中于两个方面的进一步工作：（i）实现连接到梁状结构的电动振动器的耦合机电模型，从而评估振动器的动力学对该方法的功效的影响。(ii)对真实的飞机机翼前缘进行实验表征，以确定结构的适当模型，然后可用于评估真实的结构几何形状的影响。

In-flight de-icing and anti-icing of aircraft wings is typically achieved by thermal means, either by bleeding hot air from the engines or through electrical heating, both of which are power consuming and limited in their applicability. The University of Southampton is collaborating with Ultra Electronics Ltd, who are the leading supplier of electrical ice protection systems, to develop a new low power technique based on structural acoustics. Dynamic actuators are used to generate waves in the wing structure so as to create large stresses at the wing-ice interface causing the ice to break off.This project will focus on two aspects of further work:(i) Implementing a coupled electromechanical model for an electrodynamic shaker connected to a beam-like structure, thereby assessing the influence of the shaker's dynamics on the efficacy of the approach.(ii) Experimental characterisation of a real aircraft wing leading edge to inform an appropriate model for the structure, which can then be used to assess the effects of real structural geometry.