常导超低场舰载磁共振装备振动响应分析研究  

Vibration Response Research on Constant Conduction Ultra-low Field Shipborne Magnetic Resonance Equipment

作　　者：郭强[1] 魏高峰 任东彦 刘吉洛 朱仁心 李勃 于大鹏[5] 闫士举[1] GUO Qiang;WEI Gao-feng;REN Dong-yan;LIU Ji-luo;ZHU Ren-xin;LI Bo;YU Da-peng;YAN Shi-ju(School of Health Science and Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Faculty of Naval Medicine,Naval Medical University;The Base of Military Health Services Training,Naval Medical University;Faculty of Military Health Services,Naval Medical University,Shanghai 200433,China;School of Naval Architecture&Ocean Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]上海理工大学健康科学与工程学院,上海200093 [2]海军军医大学海军医学系 [3]海军军医大学海军卫勤训练基地 [4]海军军医大学卫生勤务学系,上海200433 [5]大连理工大学船舶工程学院,辽宁大连116024

出　　处：《软件导刊》2022年第6期78-84,共7页Software Guide

基　　金：装备军内科研重点项目(2016ZBYX09);原第二军医大学海洋军事医学重点攻关项目(2015HJ08)。

摘　　要：为验证舰载磁共振装备在海上舰船振动环境中的适应能力,对该装备进行舰船振动适应性数值计算和有限元仿真分析研究。首先对船体系统进行有限元建模与计算网格划分,使用ANSYS Workbench软件进行整体结构模态提取,计算螺旋桨和主机等激励源产生的激振力作用下的振动频率响应传递函数;然后对安装位置的结构振动响应进行数值计算与仿真分析,根据计算结果设计隔振优化装置。实验结果表明,舰载磁共振装备安装位置在21Hz以下时振动响应整体呈上升趋势,21Hz以上时振动响应维持较高能量振动水平,四角点振动响应曲线在21Hz时达到峰值,超过30Hz后振动响应平稳。舰载磁共振装备在舰船安装位置处的振动输入处于安全范围内,能够保证装备的船舶振动安全性与可靠性。In order to verify the adaptability of shipborne magnetic resonance equipment in the vibration environment of ships at sea,numerical calculation and finite element simulation analysis of shipborne magnetic resonance equipment were carried out.First carry out finite element modeling and calculation mesh division of the hull system,use ANSYS Workbench to extract the mode of the overall structure,calculate the vibration frequency response transfer function under the action of the exciting force generated by the propeller and main engine and other excitation sources;Then the vibration response is numerically calculated and simulated,and the vibration isolation optimization device is designed according to the calculation results.The experimental results show that the vibration response of the shipborne magnetic resonance equipment installation position below 21Hz shows an overall upward trend,and the vibration response above 21Hz maintains a high energy vibration level.The vibration response curve of the four corners reaches a peak at 21Hz,and the vibration response is stable in the range above30Hz.Therefore,the vibration input of the shipborne magnetic resonance equipment at the installation position of the ship is within a safe range,which can ensure the safety and reliability of the equipped ship’s vibration.

关 键 词：常导超低场 舰载磁共振装备 舰船振动响应 有限元数值计算 舰船隔振优化 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]