首页> 中文期刊>噪声与振动控制 >直升机模型舱室中的集群式有源噪声控制系统性能研究

直升机模型舱室中的集群式有源噪声控制系统性能研究

     

摘要

The cluster control system, which is made up of several small scale multichannel centralized systems, can balance the complexity and risk of instability between centralized and decentralized systems. In this study, the theoretical analysis for active control of tonal noise in the enclosure is carried out, and the steady state error and the stable condition are obtained. Finally, experiments on active tonal noise control in a helicopter cabin are performed. It is shown that the equivalent noise reduction of the cluster control system is consistent with that of the centralized system, but its stability is better than that of the decentralized system.%集群式有源噪声控制系统通过用多个小规模的多通道集中式系统来实现降噪控制,能根据需要在集中式系统的复杂度和分散式系统的稳定性风险之间取得平衡.首先对噪声集群式有源噪声控制系统在单频噪声下的性能进行理论研究,然后得到集群式系统的理论稳态误差和系统稳定条件,最后在直升机舱室模型中进行集中式、集群式和分散式系统的有源噪声控制实验.实验结果表明,集群式系统的降噪量与集中式系统一致,且稳定性优于分散式系统.

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