首页>
外国专利>
Aircraft weapons bay acoustic resonance suppression system
Aircraft weapons bay acoustic resonance suppression system
展开▼
机译:飞机武器舱声共振抑制系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A aircraft weapons bay acoustic resonance suppression system for reducing undesirable acoustic resonances within an open weapons bay of an aircraft in flight is described. The system includes a rod mounted upon and spaced a distance from an extensible aircraft spoiler. The rod has a hollow core and includes a multiplicity of apertures axially aligned into two groups, placed at the point of fluid separation. A multiplicity of synthetic jets are received within the rod, each jet in fluid communication with a corresponding aperture. The jets combine to form first and second perturbation elements. The perturbation elements are sinusoidally driven out of phase at high frequencies by an actuator. This effectively creates a high frequency forcing of the airstream which is amplified by the airflow, creating a violent shedding. Advantageously, this violent shedding dramatically reduces acoustic resonance within the weapons bay of the aircraft.
展开▼