|本期目录/Table of Contents|

[1]陈启东,曹 灿,顾泽堃,等.基于AQWA的锥底振荡浮子水动力特性研究[J].工业仪表与自动化装置,2019,(04):3-6.[doi:1000-0682(2019)04-0000-00]
　CHEN Qidong,CAO Can,GU Zekun,et al.Research on hydrodynamic characteristics of conical bottom oscillating float based on AQWA[J].Industrial Instrumentation & Automation,2019,(04):3-6.[doi:1000-0682(2019)04-0000-00]
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基于AQWA的锥底振荡浮子水动力特性研究

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2019年04期
页码:
3-6
栏目:
出版日期:
2019-08-15

文章信息/Info

Title:
Research on hydrodynamic characteristics of conical bottom oscillating float based on AQWA
作者:
陈启东1; 曹 灿2; 顾泽堃2; 王力晓2
1.常熟理工学院 机械工程学院，江苏 常熟 215500；
2.苏州大学 机电工程学院，江苏 苏州215000
Author(s):
CHEN Qidong1;  CAO Can2;  GU Zekun2;  WANG Lixiao2
1. School of Mechanical Engineering, Changshu Institute of Technology,Jiangsu Changshu 215500,China;
2.School of Mechanics, Soochow University, Jiangsu Suzhou 215000,China
关键词:
辐射阻尼; 附加质量; 激振力; RAOs; 频域分析; 时域分析
Keywords:
radiation damping;  added mass;  exciting force;  RAOs;  frequency domain analysis;  time domain analysis
分类号:
TK79
DOI:
1000-0682(2019)04-0000-00
文献标志码:
A
摘要:
通过水动力计算软件对圆锥底振荡浮子进行仿真分析，主要针对浮子圆锥角度进行建模仿真，并对各自附加阻尼，附加质量，激振力和RAOs进行频域分析，对位移、速度、加速度和激振力进行时域分析。结果表明，当频率小于0.6 Hz，浮子所受激振力和附加质量下降较快；RAOs值较稳定；辐射阻尼上升较快。当频率大于0.6 Hz时，浮子所受激振力较小，且变化缓慢；RAOs值迅速下降；附加质量较小，下降趋势趋缓；辐射阻尼不断下降，100°～120°锥角的振荡浮子下降缓慢，130°～170°振荡浮子下降较快。通过时域分析可以看出，当锥角小于120°时，浮子运动很不稳定，当锥角较大时，浮子所受激振力较大，运动也比较稳定。
Abstract:
This paper simulates the conical oscillating float by hydrodynamic calculation software. It mainly focuses on the modeling and simulation of the float cone angle, and analyses the frequency domain of the respective radiation damping, added mass, exciting force and Response Amplitude Operators (RAOs), and time domain analysis of displacement, velocity acceleration, and exciting force. The results show that when the frequency is less than 0.6 Hz, the exciting force and additional mass of the float decrease rapidly; the RAOs value is stable; the radiation damping rises faster. When the frequency is greater than 0.6 Hz, the exciting force of the float is small and the change is slow; the RAOs value decreases rapidly; the additional mass is smaller, the downward trend is slower; the radiation damping is decreasing continuously, the oscillating float of the 100° to 120° cone angle drops slowly, and the 130° to 170° oscillating float drops faster. It can be seen from the time domain analysis that when the cone angle is less than 120°, the float motion is very unstable. When the cone angle is large, the float is subjected to large exciting force and the motion is relatively stable.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2018-10-16
资金项目：国家自然科学基金（51705037）
作者简介：陈启东(1962)，男，江苏无锡人，教授，本科，学士学位，研究方向是机械振动和流体力学。
更新日期/Last Update: 1900-01-01