位移吨位,有时也称为位移,只是船舶按重量衡量的一种方式。设计各种船只的海军建筑师的目标是尽可能接近设计重量的船舶。这有助于确保它在各种条件下都能按预期运行,并且可以承载负载或保持所需的巡航速度。有创意吧?如果我们将我们的箱子从水中取出并在里面用水填充到水线,我们可以测量它需要多少加仑。然后我们可以将这个加仑数乘以8,因为我们说我们的水重量恰好是每加仑8磅。假设需要100加仑才能将我们的箱子装到水线上。水的总重量是800磅,如果我们称重我们的箱子,我们将看到它的重量完全相同,800磅。为船舶制定规则和标准的组织使用排量吨位作为对不同尺寸船舶进行分类的方法。在确定靠泊费用时,港口和港口使用排水吨位作为标准之一。要理解与位移有关的概念,我们将使用一个简化的例子。我们需要知道的第一件事是水有重量,例如,我们要说每加仑8磅,因为它接近3.5公斤。在现实世界中,如果是新鲜水或咸水,水会有一点变化,而当水变热时,水的重量会略微增加。我们的船将是一个简单的箱子,顶部敞开,平底。现在我们将盒子放入水中。因为它具有重量,所以当它漂浮时会将一些水推开。在侧面,我们标记了一条线,水从盒子的两侧出现。因此置换意味着;从船体到水线的水的重量是多少?如果船舶是货船,则水线可以改变并用载重线测量,但是总是用完全没有货物的船舶测量位移吨位。吨位这个词只是衡量体重的另一种方式。在一种称为排水型船体的简单船体设计中,水线很容易放置,并且可以根据载荷而变化。几乎所有大型货船都有排水型船体设计,因此它们可以承载最大的货物。另一种类型的船体具有多个船只或水平,船只以不同的速度骑行。这些船体将船从水中抬起,以减少阻力并提高速度。许多小型休闲游艇都采用这种设计,但也可以在濒海战斗舰等战舰上找到它。在这些船体的情况下,必须仔细计算所需的水线以在任何速度下获得所需的性能和迎角。

美国芝加哥大学物流专业Assignment代写:排量吨位

Displacement Tonnage, sometimes just called displacement, is just one way a ship is measured by weight. Naval architects who design all kinds of vessels have goals to build the ship as close to the designed weight as possible. This helps ensure that it performs as expected in all sorts of conditions, and can carry loads or maintain desired cruising speed. Creative, right? If we take our box out of the water and fill the inside with water up to the waterline we can measure how many gallons it takes. Then we can multiply that number of gallons by eight because we said our water weighed exactly eight pounds per gallon. Let’s say it took 100 gallons to fill our box to the Water Line. The total weight of that water is 800 pounds and if we weigh our box we will see that it weighs exactly the same, 800 pounds. Organizations who set rules and standards for ships use displacement tonnage as a way to classify different sizes of ships. Ports and harbors use displacement tonnage as one of the criteria when determining berthing charges. To understand the concepts related to displacement we will use a simplified example. The first thing we need to know is that water has weight and for the example, we’re going to say eight pounds per gallon because of its close to 3.5 kilos. In the real world, water varies a little bit if it is fresh or salt water and weighs less when it gets hot since it expands slightly. Our ship is going to be a simple box with an open top and flat bottom. Now we float the box in some water. Because it has the weight it will push some of the water out of the way as it floats. On the side, we mark a line where the water comes up the sides of the box. So displacement means; what is the weight of the water displaced by the hull of a ship up to the waterline. If the vessel is a cargo ship the waterline may change and be measured with Load Lines but displacement tonnage is always measured with a ship completely empty of cargo. The word tonnage is just another way to say weight-in-tons. In a simple hull design called a displacement hull, the waterline is easy to place and it can change according to load. Almost all big cargo ships have displacement hull designs so they can carry the maximum cargo. Another type of hull has multiple chines, or levels, that the vessel rides on at different speeds. These hulls lift the boat out of the water to reduce resistance and increase speed. Many small recreational boats have this design but it’s also found on warships like the Littoral Combat Ship. In the case of these hulls, the desired waterline must be carefully calculated to achieve the desired performance and angle of attack at any speed.

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