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首页> 外文期刊>Aquacultural Engineering: An International Journal >Modelling and simulation of rotary feed spreaders with application to sea cage aquaculture - A study of common and alternative designs
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Modelling and simulation of rotary feed spreaders with application to sea cage aquaculture - A study of common and alternative designs

机译:旋转饲料吊具应用与海上笼养水产养殖的建模与仿真 - 常见又替代设计研究

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摘要

Rotary feed spreaders are extensively used in large scale fish aquaculture and are tasked with distributing pelletized feed in a spatially uniform manner over the water surface. Questions have been raised with respect to the performance of classical spreader designs regarding the size and uniformity of the covered area as well as their inability to adapt to changing environmental conditions. This study presents a robotic model of rotary spreaders with experimental validations. Classic rotary spreaders are simulated as well as two alternative designs in the form of a spreader releasing pellets at an optimal initial ballistic angle and a motorized version to increase throw length and provide a more spatially homogeneous surface feed distribution. The alternative designs both yielded improved surface coverage without the need of higher conveying airspeed which may lead to increased pellet attrition. In addition, the motorized design may be used to position pellets at a given location within the sea cage, such as into the wind and current so that pellets can reside inside the sea cage for a prolonged period of time. The presented model may be of interest to researchers and equipment manufacturers who desire to explore performance of a given spreader design.
机译:旋转饲料涂布器广泛用于大规模的鱼类水产养殖中,并且任务是在水面上以空间均匀的方式分配粒化进料。已经提出了关于覆盖区域的尺寸和均匀性的古典展台设计的表现以及它们无法适应改变环境条件的典型问题。本研究提出了具有实验验证的旋转吊具的机器人模型。经典的旋转吊具是模拟的,以及两个替代设计,其在铺展器的形式中,在最佳的初始弹道角度和电动版本上释放颗粒,以增加抛光长度并提供更加空间的均匀表面进料分布。替代设计均产生改善的表面覆盖,而不需要更高的输送空速,这可能导致颗粒磨损增加。此外,电动设计可用于将颗粒定位在海上笼内的给定位置,例如进入风和电流,使得颗粒可以在海上笼内延长在海上笼内。所呈现的模型可能对渴望探索给定吊具设计的性能的研究人员和设备制造商感兴趣。

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