Aircraft wing de-icing using structural wave motion

飞机机翼的飞行除冰和防冰通常是通过热手段实现的，要么是通过从发动机排出热空气，要么是通过电加热，这两种方法都是耗电的，而且适用性有限。南安普顿大学正在与电气冰保护系统的领先供应商Ultra Electronics Ltd合作，开发一种基于结构声学的新型低功耗技术。动力致动器在机翼结构中产生波浪，从而在翼冰界面处产生较大的应力，使冰脱落。该项目将侧重于进一步工作的两个方面：(i)为连接到梁状结构的电动振动筛实施耦合机电模型，从而评估振动筛动力学对该方法有效性的影响。（ii）真实飞机机翼前缘的实验表征，为该结构提供合适的模型，然后可用于评估真实结构几何的影响。

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.