CN111577718A - 一种减小动体摩擦阻力的设计方案 - Google Patents
一种减小动体摩擦阻力的设计方案 Download PDFInfo
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- CN111577718A CN111577718A CN202010507464.7A CN202010507464A CN111577718A CN 111577718 A CN111577718 A CN 111577718A CN 202010507464 A CN202010507464 A CN 202010507464A CN 111577718 A CN111577718 A CN 111577718A
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- oil
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- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000003068 static Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 210000001503 Joints Anatomy 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003345 natural gas Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 240000004804 Iberis amara Species 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/002—Influencing flow of fluids by influencing the boundary layer
- F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
- F15D1/006—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising moving surfaces, wherein the surface, or at least a portion thereof is moved or deformed by the fluid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
Abstract
发明名称:一种减小动体摩擦阻力的设计方案。技术领域:1)轮船、火车、飞机、火箭、导弹、航天器、汽车外表面,2)输油、输气、输水管道内表面,表面摩擦阻力的改进设计。发明内容:在技术领域1)的外表面和在技术领域2)的内表面铺设轮排或传动皮带的方式,将摩擦阻力由滑动摩擦方式转化为滚动摩擦方式,从而大大降低摩擦阻力。
Description
技术领域
1)轮船、火车、飞机、火箭、导弹、航天器、汽车外表面摩擦阻力改进机械设计。2)输油、输气、输水管道内表面摩擦阻力改进机械设计。
背景技术
在技术领域1)中,当发生运动时,将出现与周围水体或空气的摩擦阻力,在技术领域2)中,当发生运动时,将出现管道摩擦阻力,为减小摩擦阻力,常用方法是增加表面光滑度和采用流线设计,在大面积表面或者高速运动时,摩擦阻力将成倍增长,能量损失非常大,在非常高速时,摩擦阻力转化的热能将使表面的温度升高。甚至损坏表面结构。
发明内容
在技术领域1)的外表面和技术领域2)的内表面铺设轮排或传动皮带的方式,将摩擦阻力由滑动摩擦方式转化为滚动摩擦方式,从而大大降低摩擦阻力。
具体实施方式
:
轮排或者传动皮带应铺满外表面或者内表面产生摩擦阻力的地方。
对轮排靠近固体表面侧采用半封闭方式,对传动皮带靠近固体表面侧采用全封闭的方式,动静结合处采用机械密封装置,即达到只露对侧部分与空气、水、油等流体接触并保持相对静止状态。
对表面接触气态物质如空气、天然气,装设轮排方式,对表面接触液态物质如水、油,装设传动皮带。
对轮排和传动皮带的大小,结构,材质,表面形状应根据实际应用场景确定。
对轮排和传动皮带铺设可以整体铺也可以拼装铺。
对轮排和传动皮带拼装前后结合处和前缘处采用导流片装置。
导流片装置应正好适合轮排或者传动皮带外侧边缘。