U.S.-Australian Cooperative Research: Experiments on ActiveControl of Aircraft Interior Noise

该奖项将支持博士之间的合作研究。 弗吉尼亚理工学院的克里斯托弗·富勒博士和 阿德莱德大学的多林汉森，为期两年。 合作的工作是探讨车内噪声的控制 在使用施加到机身的振动输入的飞行器中。 特别是，该研究比较了使用transputer/communi- 阳离子系统和那些使用数字信号处理 噪音控制系统。 将审查的领域包括 研究更快的噪声输入输出控制，先进的 噪声传感器，以及对机身缩放效应的理解 噪音控制。 该项目代表了 美国和澳大利亚的研究人员。 澳大利亚集团是 使用晶片机处理控制问题/ 通信系统，其被配置为许多输入 高速输出通道。 弗吉尼亚州的系统 理工学院是在数字信号上实现的 处理芯片，输入和输出受限 渠道 这项研究有可能推动一项 在不牺牲控制的情况下增加控制通道 速度，并导致更迅速的有效实施 飞机噪音控制系统 的应用 其他领域，如水下声学， 工业噪声控制也是期望。 这一行动为富勒博士提供了旅行资金， 项目的第一年。 第二年的资金是 根据澳大利亚政府的批准， 继续为阿德莱德的一部分提供资金， 合作项目。

This award will support collaborative research between Dr. Christopher Fuller of Virginia Polytechnic Institute and Dr. Dolin Hansen of Adelaide University for a two year period. The cooperative work is to explore control of interior noise in aircraft using vibration inputs applied to the fuselage. In particular, the study compares using transputer/communi- cations systems and those using digital signal processing systems for noise control. Areas to be examined include research on faster input-output control of noise, advanced noise sensors, and understanding of fuselage scaling effects on noise control. The project represents excellent collaboration between the U.S. and Australian researchers. The Australian group is approaching the control problem with the use of transputer/ communications systems, which are configured to many input output channels at high speed. The system at Virginia Polytechnic Institute is implemented on a digital signal processing chip, limited in terms of input and output channels. The research has the potential to advance an increase in control channels without sacrifice of control speed, and lead to more rapid implementation of effective noise control systems in aircraft. Application of the results to other areas such as underwater acoustics and industrial noise control are also expected. This action provides funds for Dr. Fullerr's travel in the first year of the project. Funding for the second year is contingent upon the Australian Government's approval and continued provision of funds for Adelaide's part of the cooperative project.