Wire Flyer (WiFly): A cable flying vehicle system for high resolution water column profiling

从深水中移动的船只上绘制水柱剖面以获得高的垂直和水平分辨率是很困难的。所有当前的解决方案，如CTD拖缆？因此，移动的船廓线和起伏的拖体受到航速或水深的显著限制，特别是在100米以上。因此，很难获得具有足够分辨率的海洋剖面，以确定许多有关的比例尺。π吗?S申请资金来设计和建造一个多用途的深度无关系统，该系统使用飞行器，利用翼片产生的升力以受控的方式在牵引钢丝上上下滑动。先前的工作已经证明了提出的概念的可行性。比例模型试验表明，在垂直和45度之间的斜度范围内，可实现的滑动斜率范围很广。翼型提供了一种新颖的低功率推进方法，沿着电缆，在类似的时尚帆船迎风航行，利用自由流速度的电线在水中移动。试验还表明，使用几个弹簧安装概念可以有效地隔离拖曳飞行体的索弦振动。拟议的1000米系统将由两个携带传感器的电缆飞行器和一个减压器组成，以保持电缆的紧密性。这些飞行器将是流线型的、电池驱动的飞行器，包含封装的电子设备、机翼电机执行器、浮选、声学通信硬件和被动铰接尾鳍，数据收集、记录和控制将由一个小型微处理器和外围电路实现。拟议的车辆将支持CTD传感器，并具有各种其他传感器的有效载荷能力，如荧光计、溶解气体和浊度，适用于广泛的研究。更广泛的影响：利用这个项目作为一个本科工程项目是很有意义的。它将开发潜在的重要技术和方法；涉及工程、科学、项目管理、海上作业等多个不同学科；是一个足够大的项目，需要团队在几个阶段的努力，并且有一个合理的管理范围。该剖面系统在沿海和深水海洋学中都有广泛的应用，并且通过在每个自记录飞行器上具有灵活的科学有效载荷能力，应该能够支持一系列物理，化学和生物采样系统。

Profiling the water column to achieve both high vertical and horizontal resolution from a moving vessel in deep water is difficult. All current solutions, such as CTD tow-yo?s, moving vessel profilers and undulating tow bodies are significantly limited by ship speed or water depth, especially beyond 100 meters. As a consequence it is difficult to obtain oceanographic sections with sufficient resolution to identify many relevant scales. The PI?s request funding to design and build a versatile depth-independent system using flying vehicles which slide up and down a towed wire in a controlled manner using the lift created by wing foils. Prior work has demonstrated the viability of the proposed concept. Scale model tests have shown a wide range of achievable glide slopes for cable angles between vertical and 45 degrees. The wing foils provide a novel low power method of propulsion along the cable, in similar fashion to a sailboat sailing up wind, that utilizes the free stream velocity of the wire moving through the water. Tests have also demonstrated effective isolation of cable strum vibration from the towed flyer body using several spring mount concepts. The proposed 1000 meter system will consist of two cable flying vehicles carrying sensors, and a depressor weight to keep the cable tight. The flyers will be streamlined, battery powered vehicles containing packaged electronics, a wing motor actuator, flotation, acoustic communications hardware, and a passively articulating tail fin. Data collection, logging and control will be achieved by a small microprocessor and peripheral circuitry. The proposed vehicles will support CTD sensors and have payload capacity for a variety of other sensors, such as fluorometers, dissolved gas and turbidity, applicable for a wide range of studies.Broader Impacts: Using of this project as an undergraduate engineering project makes a lot of sense. It will develop potentially important technology and methodologies; involves several different disciplines of engineering, science, project management, at-sea operations, etc.; is a big enough project to require a team effort over several phases and has a reasonable scope to be manageable. This profiling system has broad application in both coastal and deep-water oceanography, and by having a flexible scientific payload capability on each self-recording flyer vehicle, should be capable of supporting a range of physical, chemical and biological sampling systems.