基于最佳逼近理论的主动吸收造波算法研究  

Study of an active absorption wave making algorithm based on the best approximation theory

作　　者：彭棠 庞永杰[1] 李宏伟[1] 王庆云 

机构地区：[1]哈尔滨工程大学水下机器人重点试验室,黑龙江哈尔滨150001

出　　处：《舰船科学技术》2016年第1期44-48,共5页Ship Science and Technology

基　　金：总装预研基金资助项目

摘　　要：在海洋工程水池试验中,二次反射波会严重影响实验的可靠性和准确性,如何消除反射波成为一个重要课题。针对MARINTEK水池为仿真对象展开相关研究,运用目前较为成熟的主动吸收造波算法理论,解算摇板式造波机的传递函数,在此基础上应用最佳逼近理论,设计出相应的数字滤波器,来达到同等的主动吸收造波效果,并验证该方法的有效性,从而实现模拟滤波器向数字滤波器的转换。仿真结果显示,数字滤波器输出与标准(主动吸收造波算法理论)输出有着良好的拟合效果,表明所设计的数字滤波器能够到达预期的主动吸收造波效果。本研究的意义在于,初步实现了主动吸收造波算法从理论到实际应用的转换,为工程上的应用提供良好的依据,有助于提高波浪试验的准确性。There are some serious impacts on the reliability and accuracy of test due to the second wave reflection during the tank testing, thus, how to eliminate the wave reflection becomes an important subject. Aiming at the MARINTEK tank, research is carried out, applying the mature theory of active absorption algorithm, resolving the transfer function of the flap type wave maker, based on the best approxim making, ation theory, designing an appropriate digital filter to meet the effect of active absorption wave and verifying effectiveness of this algorithm. The result of digital filter and standard （ the theory of active absorption algorithm） digital filter can achieve the effect of active absorption wave maki transform active absorption algorithm wave test. simulation shows that the output of get good fitting, which indicates the ng to practical application, which contri thus preliminarily realizing the butes to develop the accuracy of

关 键 词：数字滤波器 主动吸收算法 最佳逼近理论 

分 类 号：U661.1[交通运输工程—船舶及航道工程]