主动吸收式造波机的设计及初步实现

Design and Primary Realization of an Active Absorbing Wave Maker

主动吸收式造波机能够实时消除水池干扰波对模型试验产生的影响,保证试验结果的准确性。基于微幅波理论,提出主动吸收式造波方法,推导摇板式造波机的控制方程,设计了基于该造波方法的主动吸收造波控制系统,通过多条反馈路线实现了造波机的精确控制,达到对造波板前干扰波的实时吸收,保证了水槽中波浪为目标波形。最后,在相同造波条件下,对比采用主动吸收造波方法和非主动吸收造波方法的试验结果,充分验证了主动吸收式造波方法具有可行性,时效性。主动吸收式造波机的实现,有助于提高波浪试验的准确性,节省试验成本,提供良好的试验环境。

The active absorbing wave maker can immediately eliminates interference effects on the model tests, which ensure the accuracy of the test results. Basing on Airy wave theory, active absorption wave-making method is put forward, and control equation of rocking-plate wave maker is derived. Active absorbing wave-making control system is designed, based on the wave method. Through multiple feedback lines, a precise control of the wave maker is achieved as well as the real-time absorption of interference wave before the wave blade, which ensures wave is the target one in the sink. Finally, under the same wave conditions, contrast testing is conducted between the active absorbing wave method and non-active absorbing wave method. It fully verifies the feasibility and timeliness of active absorption wave-making method. The realization of active absorption wave maker helps to improve the accuracy of wave experiments, to save test cost, and to provide a good test environment.