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Adaptive noise cancellation system for low frequency transmission of sound in open fan aircraft

机译:自适应噪声消除系统,用于开放式风扇飞机中的低频声音传输

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This paper describes the use of a structural/acoustic model of" a section of a large aircraft to help define the sensor/actuator architecture that was used in a hardware demonstration of adaptive noise cancellation. Disturbances considered were representative of propeller-induced disturbances from an open fan aircraft. Controller on and controller off results from a hardware demonstration on a portion of a large aircraft are also included. The use of the model has facilitated the development of a new testing technique, closely related to modal testing, that can be used to find good structural actuator locations for adaptive noise cancellation.
机译:本文描述了大型飞机某一部分的结构/声学模型的使用,以帮助定义用于自适应噪声消除的硬件演示的传感器/执行器架构。所考虑的干扰代表了螺旋桨引起的来自飞机的干扰。开放式风扇飞机,还包括大型飞机一部分硬件演示的控制器开启和控制器关闭结果,该模型的使用促进了与模态测试密切相关的新测试技术的开发,该技术可用于找到合适的结构执行器位置,以进行自适应噪声消除。

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