Equipment Proposal: Directional Wavemaker System for the 3-D Tsunami Basin

这项行动是为了支持在实验室波盆中产生长波（海啸）的最先进的造波系统的发展。该系统包括由11个并排的桨组成的阵列，这些桨通过12轴线性运动装置以活塞式运动水平移动。每个轴的运动由精密直线电机单元产生和控制，提供当今最复杂的负载定位。完整的系统将能够产生向任意方向传播的任意长波形式。该造波系统将安装在俄勒冈州立大学正在建造的精密波池中。虽然与NEES（地震工程模拟网络）海啸波盆分离，但它将是一个精确的1/8比例模型，是NEES波盆的补充设施。定向波能力将大大加强利用NEES波盆的研究，并扩展三维非线性长波动力学的基础研究领域。模型设施将提供一个更易于管理和更便宜的设施，以便在更大的设施中探索和规划研究工作。它还将使研究人员能够获得关于不同规模实验室设施之间规模效应的准确信息，这将有助于将大型NEES设施的结果外推到更大的野外规模。使用造波器系统的研究将充分利用NEES计划在传播、教育和更广泛的合作方面的优势。

This action is to support the development of a state-of-the-art wavemaker system for long-wave (tsunamis) generation in a laboratory wave basin. The system comprises an array of 11 side-by-side paddles that are moved horizontally in piston-like motions by 12 axes of linear motion devices. The motion of each axis is produced and controlled by a precision linear-motor unit that provides the most sophisticated load positioning available today. The complete system will be capable of generating arbitrary long-wave forms that propagate in arbitrary directions.The wavemaker system will be installed in a precision wave basin being constructed at Oregon State University. Although separate from the NEES (Network for Earthquake Engineering Simulation) tsunami wave basin, it will be an accurate 1/8th scale model and a complementary facility to the NEES wave basin. The directional wave capabilities will enhance significantly research using the NEES wave basin, as well as expanding the set of basic research areas on nonlinear long-wave dynamics in 3-D domains.The model facility will provide a more manageable and less expensive facility for exploring and planning research efforts in the larger facility. It will also enable researchers to obtain accurate information on scale effects between different size laboratory facilities that will be useful in extrapolating results from the large NEES facility to even larger field scales. Research using the wavemaker system will take full advantage of the NEES program in terms of dissemination, education, and broader collaboration.