The anti-drag and anti-friction bionic texture comprises a base material and a plurality of bionic protrusions arranged on the surface of the base material, each bionic protrusion is integrally a fan-shaped column, a curved-surface-shaped groove is downwards formed in the top of each fan-shaped column, the side, close to the axis of the corresponding fan-shaped column, of each curved-surface-shaped groove is a downwards-concave abrupt slope, and the side, close to the axis of the corresponding fan-shaped column, of each curved-surface-shaped groove is a concave abrupt slope. One side relatively close to the arc-shaped surface is a concave flat and gentle slope, the integrally formed vortex groove defines an intersecting line of a plane penetrating through the axis of the fan-shaped column and the curved-surface-shaped groove as a longitudinal section, all the longitudinal sections of the fan-shaped column are the same, and one section, close to the center of the fan-shaped column, of the top curve of the longitudinal section is a concave abrupt slope curve; and the other relative section is a flat and gentle slope curve. Due to the fact that the curved-surface-shaped groove has an obvious eddy current effect, the drag-reduction and friction-reduction bionic texture can enable seawater to flow in a seawater environment to form eddy current so as to form a rolling shaft effect, sliding friction is converted into rolling friction, the fluid dynamic pressure effect is enhanced, and the friction coefficient reduction rate reaches up to 60% or above.
本发明公开了一种用于涉水的减阻减摩仿生织构,包括基体材料和设于基体材料表面的若干仿生突起,所述仿生突起整体为扇形柱,在扇形柱顶部向下开设有一个曲面形凹槽,所述曲面形凹槽靠近扇形柱的轴心线一侧为下凹陡坡,相对靠近弧形面一侧为下凹平缓坡,整体形成涡流凹槽定义穿过扇形柱的轴心线的平面与曲面形凹槽交线为纵向剖面,所述扇形柱的所有纵向剖面相同,所述纵向剖面的顶部曲线靠近扇形柱中心一段为下凹陡坡曲线,相对另一段为平缓坡曲线。由于的曲面形凹槽具有明显的涡流效应,减阻减摩仿生织构可以在海水环境中将海水流动形成涡流从而形成滚轴效应,将滑动摩擦转化为滚动摩擦,并增强流体动压效应,摩擦系数降低率高达60%以上。
Anti-drag and anti-friction bionic texture for wading
一种用于涉水的减阻减摩仿生织构
2023-01-20
Patent
Electronic Resource
Chinese
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
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