典型舰船舱壁结构隔振优化设计  

Vibration isolation design of typical hull bulkhead structures

作　　者：王祖华[1] 周海波[1] 计方 

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064 [2]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《船舶》2011年第1期26-33,共8页Ship & Boat

基　　金：国防重点预研项目(40*********02);国际科技合作项目(2007DFR80340);高等学校博士学科点专项科研基金(20070217074)

摘　　要：基于波动理论,探索了船体结构布置阻振质量后的振动波传递的机理,讨论了振动波入射角度、阻振质量截面尺寸对其隔振性能的影响。从阻抗失配的角度出发,开展双层壳动力舱段典型舱壁结构隔振优化设计。综合运用刚性阻振质量锯、阻振质量环路,初步给出了具有高传递损失特性的舱壁结构形式。结果表明:隔振优化设计后舱壁结构在有效降低了动力舱段结构振动与声辐射的同时,更加显著地隔离了结构噪声向邻近舱段的传递。Based on the wave theory,the characteristics of blocking masses attenuating propagation of the vibration wave are analyzed.The influences of wave incident angle and the sectional dimension of the blocking masses on the isolation performance are discussed.The vibration isolation design of double cylindrical shell power cabin bulkhead with blocking masses is carried out from the viewpoint of the impedance mismatch.Combining of the blocking mass serration with the blocking mass loop,the bulkhead structure with high transmission loss is introduced.The results show that the vibration and sound radiation of the power cabin are reduced effectively by vibration isolation design,and the structure-borne sound is significantly isolated to the adjacent cabin.

关 键 词：波动理论 典型舱壁结构 隔振设计 阻振质量 

分 类 号：TB53[理学—物理]