Teeth curves of a hydraulic jet dredge for catching Japanese surf clam.
Teeth curves of a hydraulic jet dredge for catching Japanese surf clam.
复制标题
用于捕获日本北蛤的液压喷射挖泥船的齿形曲线。
DOI：
10.2331/suisan.55.1223
复制
发表时间：
1988
影响因子：
0.4
通讯作者：
T. Kojima
中科院分区：
文献类型：
--
作者：
K. Nashimoto;T. Hiraishi;T. Kojima
本文分析了日本冲浪蛤与水力喷射挖泥船的齿接触和沿齿沿着时的动力学，并讨论了齿的最佳曲线。齿角被认为是贝壳在沙子中的重量、贝壳垂直移动的阻力、贝壳水平移动的阻力、贝壳与齿之间的静摩擦系数、贝壳长度和埋深的函数。这些参数是在实验室条件下测量的，并且计算了在沿着距离齿端的不同点处对于各种壳体尺寸和深度的齿角的最佳变化。在此基础上，得到了10cm长贝壳的最佳齿形曲线。
The dynamic of Japanese surf clams as they are in contact with and slide along the teeth of a hydraulic jet dredge are analyzed and the optimal curves for the teeth are discussed. Teeth angle is considered to be a function of the weight of the shell in the sand, the drag of the shell moving vertically, the drag of the shell moving horizontally, the static frictional coefficient between the shell and the teeth, shell length and buried depth. The parameters were measured under laboratory conditions, and the optimal variation in teeth angle for various shell sizes and depths was calculated at different points along the distance from the end of the teeth. The optimum teeth curves for a shell 10cm in length was obtained using these teeth angles.