某艇船体结构总振动测量及动力性能评估  

A certain ship's global vibration test trial and dynamical capability evaluation

作　　者：龚君来[1] 

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《舰船科学技术》2008年第3期60-63,共4页Ship Science and Technology

摘　　要：船体结构振动不仅影响到船体结构的安全使用寿命,并且影响到船上各种仪表、设备和机械装置及各种导航、通讯和控制系统等的性能,也会使人员感到疲劳和不舒适,从而使工作效率降低。介绍了某艇航行试验时测量艇体结构总振动的动力试验,采用频域峰值法得到了该艇的动力学特性,并与采用迁移矩阵法计算的结果进行了比较,二者吻合良好。结果表明,艇体在全速航行状态下,环境激励的响应能够识别出该艇所感兴趣的模态,结果可以作为该艇的计算模型修正、损伤检测、使用状态评估和健康监测的基础。Hull structure vibration affect not only the hull structure＇s use security, but also the capability of varied meters, equipments, machines, navigation system, communication system and control system, further,it will make people fell tired and unwell and reduce the work efficiency the paper introduces a certain submarine＇s dynamical trial of global vibration of navigating test. We obtain the submarine＇s dynamical characteristic by using the peak value of frequency domain, compare the solution with the results using the method of migratory matrix,the datum inosculate well. The results also indicate that the submarine＇s modes we are interested can be identified by the response of environment prompting while navigating at full tilt. The results can be looked upon the base of calculate model modifying, flaw examination, use evaluation and health inspection.

关 键 词：船体总振动 动力试验 参数识别 模态分析 迁移矩阵 

分 类 号：U661.44[交通运输工程—船舶及航道工程]