频域内海洋资料浮标水动力特性的仿真研究  

Hydrodynamic characteristics simulation for ocean data buoy in frequency domain

作　　者：张继明[1] 范秀涛[1] 赵强[1] 李选群[1] 郑珊珊[1] 

机构地区：[1]山东省科学院海洋仪器仪表研究所,山东青岛266001

出　　处：《山东科学》2015年第4期8-13,共6页Shandong Science

基　　金：青岛市公共领域科技支撑计划(12-1-3-79-jh);国家自然科学基金(61405106);山东省科学院青年基金(2014QN029)

摘　　要：为研究海洋资料浮标的水动力特性,建立了频域内的运动微分方程,并基于势流理论,仿真了浮标模型在波浪中的运动,与模型水池试验结果进行比较,发现在共振区域内仿真结果的误差较大。为提高仿真精度,利用模型的横摇衰减试验,获得了浮标模型的阻尼系数,并对仿真模型的阻尼矩阵进行修正。修正后的仿真结果与试验结果对比,仿真精度大为提高,平均误差不超过3%,满足工程应用的要求。We established a motion differential equation in frequency domain for hydrodynamic characteristics of ocean data buoy. We also simulated buoy modelmotion in wave based on potential flow theory. We discovered a significant simulation result deviation existed, as compared with tank test results. We acquired damping coefficient of a buoy model by roll decay test of the model to improve the accuracy of simulation results. Damping matrix of the model was also corrected. The accuracy of the corrected simulation results was greatly improved, less than 3% of average error, as compared with the experimental results. This can therefore satisfy the requirements of engineering applications.

关 键 词：浮标 势流理论 水池试验 横摇阻尼 横摇衰减试验 

分 类 号：P715.2[天文地球—海洋科学]