公开(公告)号：US20150232186A1

公开(公告)日：2015-08-20

申请号：US14427505

申请日：2013-08-15

Applicant: SELEX ES LTD.

Inventor： John Ronald Maclean ,  Douglas Stuart Maguire ,  Jack Paterson ,  Steven Lawson

IPC: B64D15/16

CPC classification number: B64D15/16 ,  B64D15/163

Abstract: A de-icing system for a hemispherical protective housing mounted on an aircraft structure is described. The system can include a series of piezo-electric devices mounted at the boundary of the housing. The piezo-electric devices generate ultrasonic frequencies and resonance of the protective housing is induced. One of the piezo-electric devices senses the frequency generated in the protective housing and acts as part of a feedback loop to maintain structural resonance of the protective housing. The structural resonance of the protective housing prevents the build-up of ice. Additionally, higher power resonances can be generated to remove ice already built up on the protective housing. The system also enables detection of ice build-up on the protective housing by monitoring any change in the frequency required to maintain structural resonance of the protective housing.

Abstract translation: 描述了安装在飞行器结构上的用于半球形保护壳的除冰系统。 该系统可以包括安装在壳体边界处的一系列压电装置。 压电装置产生超声波频率，引起保护壳体的共振。 压电装置中的一个感测在保护壳体中产生的频率，并且作为反馈回路的一部分，以保持保护壳体的结构共振。 保护壳体的结构共振防止了冰块的积聚。 另外，可以产生更高功率的共振，以去除已经建立在保护壳体上的冰。 该系统还可以通过监测维护保护壳体的结构共振所需的频率变化来检测保护壳体上的积冰。