摘要
分析了摇板造波理论,基于体积不变原则,即在一定条件下摇板排开水的体积等于波浪的体积,推导得到新的摇板造波传递函数。为了验证该传递函数,设计了摇板式造波实验台的机械结构和运动控制系统,并在试验水池中进行安装调试。实验表明,该造波实验台具有良好的频响特性。同时通过试验对比发现:基于体积不变原理的造波传递函数相对于基于势流理论的造波传递函数具有一定的局限性。只有在中频段造波时推导的造波传递函数更加符合实际传递函数;在低频段和高频段时,因为水流逸散以及波浪的非线性,推导的造波传递函数不能很好起作用。
In order to study the mechanism of the formation of waves,an experimental device is set up. By researching and analyzing the rock-flap wave-making theory,a new rock-flap wave-making transfer function is presented based on the principle of constant volume,which means that under a certain condition,the volume of water equals to the row volume of rock-flap waves. In order to verify the transfer function,a rock-flap wave test bed is designed. it includes mechanical structure and motion control system and then is installed in the test tank. Tests show that this wave-maker has good frequency response. But the transfer function based on the principle of constant volume compare to the wave-making has some limitations. The new wave-making transfer function is more precise in intermediate frequency wave-making,and in the high or low frequency band,because of nonlinear of waves and the escape of water,the new wave-making transfer function cannot work well.
作者
陈俊华
王丁一
程少科
李越
CHEN Jun-hua WANG Ding-yi CHENG Shao-ke LI Yue(Ningbo Institute of Technology,Zhejiang University, Ningbo 315100, China Taiyuan University of Science and Technology, Taiyuan 030000, China)
出处
《实验室研究与探索》
CAS
北大核心
2016年第9期67-72,共6页
Research and Exploration In Laboratory
基金
浙江省自然科学基金项目(LQ15E05009)
宁波市自然科学基金项目(2015A610142)
关键词
造波
摇板
水池
传递函数
wave maker
rocker-flap
tank
transfer function
