The invention discloses a device for isolating broadband aerodynamic load excitation. The device comprises a cover plate, an acoustic black hole and a piezoelectric integrated control system, the piezoelectric integrated control system comprises a piezoelectric element and a control unit which are respectively arranged on the cover plate; the acoustic black hole is formed in the cover plate, an acoustic black hole area with the thickness changing along the area center in a power exponent mode is arranged on the cover plate, a through hole which is arranged in a cut-off mode according to the set thickness is formed in the center of the acoustic black hole area, and a damper is arranged at the position, close to the through hole, in the acoustic black hole area. The harmonic vibration of the avionics equipment is effectively avoided, the problem of harmonic response vibration of the electronic equipment in the aircraft body in the prior art is solved, the stability of the use environment of the electronic equipment is improved, and the flight reliability of the aircraft in the severe environment is guaranteed.
本发明公开了一种用于隔离宽频气动载荷激励的装置,包括盖板、声学黑洞以及压电一体化控制系统;压电一体化控制系统包括分别设在盖板上的压电元件和控制单元;声学黑洞设在盖板上,盖板上设有厚度沿区域中心呈幂指数变化的声学黑洞区域,声学黑洞区域中心设有根据设定的厚度截断设置的通孔,声学黑洞区域内在靠近通孔位置处设有阻尼。有效避免航空电子设备的谐振动,解决了现有技术中的机体内部电子设备发生谐响应振动问题,提高了电子设备使用环境的稳定性,保障了飞机在恶劣环境中飞行的可靠性。
Device for isolating broadband aerodynamic load excitation
一种用于隔离宽频气动载荷激励的装置
2024-12-03
Patent
Electronic Resource
Chinese
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