Why do ships use propellers instead of fishtail-like devices? At present, there is a contradiction in bionic propulsion: if the mechanical design is more complex, that is, the closer to the fish tail, the more serious the energy loss is, and the more complex the control is. In the final analysis, bi

Since the propeller is mentioned, the assembly process of the propeller has to be described in detail. There are two ways to install the propeller on the shaft: one is a keyed installation and the other is a keyless installation. With the continuous development of shipbuilding technology, in

Principle and Development History of PropellerThere are many ways of ship's propulsion. There was a period when the Ming Ship ruled the way of ship's propulsion just like the dinosaur ruled the earth. So the title of ship was established in that period.Most of the "open ship" is exposed to the water

The Flishpropeller series of products are produced through a process that is strictly prohibited. Whether it is material selection, overall geometric design, product testing and production, it is to enhance the performance of the propeller, better adapt to navigation conditions and make full use of

Why do large ships, submarines and other propellers have odd or even blades of 7 or 9?The rudder of modern submarine, whether cross rudder or X rudder, is in front of the propeller and is centrally symmetrical. This means that: 1) the rudder will disturb the flow field in front of the propeller, res

For nearly a hundred years, the role of the propeller has never been lacking, but rather a lot of "deformation". In addition to the common styles, different types of marine propellers also include variable pitch propellers, counterpropellers, guide vanes, pod propellers, water jet propellers, etc.,

At present, the mainstream spiral slurry of marine vessels is made of copper-nickel alloy or copper-manganese alloy. Of course, there are stainless steel, cast iron, and even fiberglass reinforced plastic propellers, but the number is small.Let's see how the copper-nickel alloy propeller is process

What is the principle of marine propeller actuation? We can explain from two different perspectives, one is the change of momentum, and the other is the change of pressure. From the point of view of momentum change, simply speaking, the propeller accelerates the passing water, causing the water mome

The history of propellers can be traced back to the records in "Tiangong Kaiwu", which was found on the chariots of the Yellow Emperor. In the Tang Dynasty, Li Wei installed a human paddle wheel on the side or the side of the ship, called the "paddle ship" or "wheel ship" (this is the origin of the

Each model of the outboard engine has a variety of propellers for use. The matching of the ship, the engine and the propeller has an important influence on the boat driving, the ride comfort, the sailing speed, the fuel economy and the the engine life. In order to get the boat to its best condition,