高速电梯轿厢噪声主动控制系统的优化设计  

Optimizing Design of Active Noise Control Systems for High Speed Elevator-Cabins

作　　者：周皓阳 吴亚锋[2] 艾志伟 徐龙 卢望 ZHOU Haoyang;WU Yafeng;AI Zhiwei;XU Long;LU Wang(School of Electronic Information and Automation,Guilin University of Aerospace Technology,Guilin 541004,Guangxi China;School of Power and Energy,Northwestern Polytechnical University,Xi’an 710129,China)

机构地区：[1]桂林航天工业学院电子信息与自动化学院,广西桂林541004 [2]西北工业大学动力与能源学院,西安710129

出　　处：《噪声与振动控制》2019年第6期133-139,186,共8页Noise and Vibration Control

基　　金：广西高校中青年教师科研基础能力提升资助项目(2019KY0793)

摘　　要：为研究高速电梯轿厢内声场特性及其噪声主动控制系统性能,根据计算流体力学、声学有限元法、声振耦合理论,获取高速电梯在井道内上行时的流场分布规律,并将电梯轿厢外表面的气体脉动压力作为电梯轿厢内噪声的激励,建立对应的声振耦合计算模型,揭示高速电梯轿厢外空气脉动规律及轿厢内噪声的传播特性。并基于主动噪声控制的声学势能最小准则,揭示7种次级声源不同的噪声主动控制系统的降噪性能,可为高速电梯轿厢内噪声控制优化提供指导。The acoustical characteristics of high speed elevator-cabins and the performance of the active-noise-control systems in the elevator are studied.The aerodynamic characteristics in the elevator shaft and the interior noise induced by external fluctuating pressure on the surface of the elevator-cabin are calculated based on fluid mechanics method,finite element method and vibro-acoustic coupling method.And the law of the air fluctuation outside the elevator and the characteristics of acoustical path in the elevator-cabin are revealed.Based on the method of minimum acoustic energy,the noise reduction performances of 7 types of active noise control systems with different secondary sources are obtained.The research results provide a direction for optimizing the noise control in the elevator-cabins.

关 键 词：声学 高速电梯 低频噪声 声学仿真 声振耦合 主动噪声控制 

分 类 号：TB535[理学—物理]