复杂激励下双层主动隔振系统振动特性研究

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• 英文论文题名：Research of vibration transmissibility of active control of two-layer vibration isolation system
• 论文作者：黄志伟 ; 何雪松
• 英文论文作者：HUANG Zhi-wei ; HE Xue-song ; China Ship Development and Design Center ; National Key Laboratory on Ship Vibration & Noise
• 年：2016
• 作者机构：中国舰船研究设计中心船舶振动噪声重点实验室;
• 论文关键词：隔振系统 ; 主动控制 ; 振动传递率 ; 反馈参数
• 英文论文关键词：vibration isolation system ; active control ; vibration transmissibility ; feedback parameter
• 会议召开时间：2016-09-17
• 会议录名称：2016年度声学技术学术会议论文集
• 语种：中文
• 分类号：U661.44
• 学会代码：SXJS
• 会议名称：2016年度声学技术学术会议
• 会议地点：中国湖北武汉
• 主办单位：船舶振动噪声重点实验室、湖北省声学学会
• 学会名称：《声学技术》编辑部
• 页数：5
• 文件大小：456k
• 原文格式：D
• 会议级别：全国

摘要

振动主动控制技术是有效抑制低频振动有效手段之一。对于船舶隔振系统,基础干扰与直接干扰可能同时存在。针对双层隔振系统的多自由度耦合振动特性,建立了基座干扰和直接干扰共同作用下双层主动隔振系统振动数学模型,分析了双层被动隔振系统的动力学特性,系统研究了复杂激励下加速度反馈、速度反馈、位移反馈对主动隔振系统振动传递率的影响。研究表明,反馈参数对主动隔振系统的隔振效果影响较大,应根据工程实际情况进行合理选择。
Active vibration control is an effective way for reducing the vibration at low frequency. The floor disturbance and the direct disturbance are always occurring at warship. Considering the characteristics of a two-layer vibration isolation system, the vibration model of the active vibration isolation system with the floor disturbance and the direct disturbance is defined. The dynamic characteristics of the system with different excitations are analyzed. The calculating formulas for the vibration transmissibility of active vibration isolation system with displacement feedback control are established and the influencing relationships between the vibration transmissibility are studied systematically. The influencing relationships between the vibration transmissibility of the vibration isolation system and the feedback parameters such as acceleration, velocity and displacement are studied systematically. The results indicate that it is indicated that this research may contribute on further understanding of design of vibration isolation system with active control.

引文

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