双层隔振系统隔振效果评价与试验  

Evaluation and Experiment on Vibration-Isolation Effect of Double-Stage Vibration-Isolation System

作　　者：段小帅[1] 梁青[1] 陈绍青[1] 王永[1] 

机构地区：[1]中国科学技术大学自动化系,合肥230027

出　　处：《振动．测试与诊断》2010年第6期694-697,共4页Journal of Vibration,Measurement & Diagnosis

摘　　要：研究了潜艇双层隔振系统中振级落差、插入损失和力传递率3个隔振评价指标的关系,通过理论分析得到3个评价指标在一定条件下相差1个常值的结论,并设计了隔振试验。试验结果表明,3个评价指标的走势一致,它们之间的差值保持在一定值附近。分别改变系统的阻尼和刚度进行仿真,通过3个评价指标的仿真结果与试验结果的对比,分析了3个指标与系统的阻尼、刚度和质量之间的关系。In the double-stage vibration-isolation system of a submarine the relationship of three evaluation indices of vibration-isolation（vibration level difference,insert loss and force transmissibility）is researched.By theoretical analysis a conclusion is drawn that the three evaluation indices have a constant difference under certain conditions.A passive vibration-isolation experiment is conducted and the results indicate that these three evaluation indices have the same trend and their differences maintain constant values.Moreover,the simulations are carried out after changing the system damping and stiffness respectively.Through the comparison of the simulation results and experimental results of the three evaluation indices,the relationship between these indices and the system damping,stiffness and mass is analyzed.

关 键 词：双层隔振系统 振级落差 插入损失 力传递率 

分 类 号：O328[理学—一般力学与力学基础]