船用复合岩棉板隔声性能  

Sound insulation performance of marine composite rock-wool panel

作　　者：邱立凡[1,2] 吴健 李泽成[1,2] 王纬波 QIU Lifan;WU Jian;LI Zecheng;WANG Weibo(Key Laboratory on Ship VilDration ＆ Nois;Jiangsu Key Laboratory of China Ship Scientific Research Center,Wuxi 214082,Jiangsu,China)

机构地区：[1]中国船舶科学研究中心船舶振动噪声重点实验室 [2]江苏省绿色船舶技术重点实验室,江苏无锡214082

出　　处：《计算机辅助工程》2018年第4期47-51,55,共6页Computer Aided Engineering

基　　金：工信部高科技船舶项目(工信部联装2016[546];工信部联装2016[24])

摘　　要：采用Virtual.Lab Acoustics中的声学有限元法仿真平板结构的隔声性能,结合4.7 mm钢板的空气隔声室试验结果,验证计算方法的收敛性和稳定性。采用该方法对船用复合岩棉板的隔声性能进行数值仿真,提出一种考虑吸声因数的复合岩棉结构的隔声性能仿真修正方法,仿真与试验结果吻合较好。Acoustic finite element metliod is used to simulate the sound insulation panel structure based on Virtual. Lab Acoustics. The convergence and stability is verified by the test results of 4. 7 mm steel panel in air insulation room. The sound insulationperformance of marine composite rock-wool panel is simulated by this met! iod. A correction method ofsound insulation performance simulation is proposed considering sound absorjDtion factor. The simulationresults agree well with the test results .

关 键 词：隔声 空气隔声室 岩棉板 吸声 修正 计权隔声指数 有限元 

分 类 号：U668.5[交通运输工程—船舶及航道工程]