摘要
噪声主动控制技术是近年研究的一个热点问题,它克服了被动降噪技术设备庞大、笨重、造价高等缺点,尤其对低频噪声具有良好的控制效果,展现出巨大的商业价值。本文在对有源消声进行理论分析的基础上,提出在局部空间实现多个线谱主动控制的方法,并研究消声区域的分布特点。同时,基于该方法进行船舶辐射噪声线谱主动控制的仿真,结果表明线谱控制效果良好,从而验证该方法的有效性和可行性。
The active noise control technology is a hot spot in recent years. Traditional passive noise control technolog has many disadvantages, such as too large, too heavy, high cost, etc. The active noise control technology can overcome these problems. It has shown great commercial value for its excellent control effect on the low-frequency noise. Based on the comprehensive analysis of the active noise control theory, a technique of active multiple line-spectrum noise control in local space is put forward in this paper, and the distribution characteristics of noise control area is researched. Finally, the simulation for controlling ship radiated-noise line-spectrum is performed based on this method. The simulation results show excellent noise control effect,which vertifies the effectiveness and feasibility of this method.
出处
《舰船科学技术》
北大核心
2014年第4期58-62,65,共6页
Ship Science and Technology
关键词
有源消声
噪声可控区域
船舶辐射噪声线谱
active noise control（ ANC）
noise control area
ship radiated-noise line-spectrum
