The main function of ship keel is load-bearing, and it is the most important load-bearing structure of ships, especially small ships. It bears the longitudinal bending moment of the hull and ensures the structural strength of the ship.
The second function of the keel is to enlarge the lateral area of the ship, improve the parallel impedance of the ship in the water, and prevent the crosswind from turning. This is especially important for sailing against the wind. The keel of a sailboat will be supported by diagonal braces in the middle or edge of the skeleton.
In addition, the keel also plays an important role in stabilizing the weight of the ship and reducing the inclination or reversal of the ship.
This is a written answer. Simply put, it is equivalent to the spine of the human back and is the most important bearing part of the whole.
2. What is the keel of a ship? The keel of a ship refers to the longitudinal member connecting the bow column and the stern column in the center of the hull base, which is located at the bottom of the ship. The keel is reinforced with transverse bars. At the bow and stern, the keel bypasses the trunk. Keels are usually the first part of hull construction.
Function:
The main function of ship keel is load-bearing, and it is the most important load-bearing structure of ships, especially small ships. It bears the longitudinal bending moment of the hull and ensures the structural strength of the ship.
The second function of the keel is to enlarge the lateral area of the ship, improve the parallel impedance of the ship in the water, and prevent the crosswind from turning. This is especially important for sailing against the wind. The keel of a sailboat will be supported by diagonal braces in the middle or edge of the skeleton.
In addition, the keel also plays an important role in stabilizing the weight of the ship and reducing the inclination or reversal of the ship.
3. The role of keel The keel of a ship is mainly used for bearing. It is the most important load-bearing structure of ships, especially small ships. It bears the longitudinal bending moment of the hull and ensures the structural strength of the ship. lady
The second function of the keel is to enlarge the lateral area of the ship, improve the parallel impedance of the ship in the water du, and prevent the crosswind from turning. This is especially important for sailing against the wind. The keel on the sailboat will be supported by diagonal braces from zhi to the middle or edge of the skeleton. broadsword
In addition, the keel also plays an important role in stabilizing the weight of the ship and reducing the inclination or reversal of the ship.
4. What is a keel? It is the keel of the ship. What is the keel used on the ship? The motorboat or boat is the most important load-bearing structure. It is located at the bottom of the ship. The keel is reinforced with transverse bars. At the bow and stern, the keel bypasses the trunk. Keels are usually the first part of hull construction. Laying keel is the most important thing in shipbuilding.
In addition to bearing load, keel also plays the role of hydrodynamic force. The lateral area of the ship is increased, the parallel impedance of the ship in the water is improved, and the crosswind is prevented from turning. This is especially important for sailing against the wind. On a sailboat, the keel is supported by diagonal braces located in the middle or edge of the skeleton.
The keel also plays an important role in stabilizing the weight of the ship and reducing the inclination or reversal of the ship.
5. The outer keel structure of the hull
The keel structure of ancient ships in China is an important invention of shipbuilding industry, which has a far-reaching impact on the development of ship structures in the world. In the Song Dynasty, the deck of the sharp-bottomed seagoing ship was flat, the side of the ship was cut like a blade, and the cross section of the ship was V-shaped. Under the sharp-bottomed ship, the keel running through the fore and aft is set to support the hull, which makes the ship stronger and has strong wind and wave resistance. European ships began to adopt this keel structure at the beginning of19th century, hundreds of years later than China.
Keel keel is a longitudinal member connecting the stern column and the stern column in the center of the hull base. It mainly bears the longitudinal bending moment of the hull. When making a ship model, you should choose rectangular pine strips with straight wood grain and no knots.
Side keels are longitudinal members on both sides of the keels. Bear part of the longitudinal bending moment and improve the strength of the hull to bear external forces. The side keel of a ship is usually made of pine strips with rectangular cross section.
Rib ribs are transverse members in the hull. It bears the lateral water pressure and maintains the geometric shape of the hull. The ribs of ship models are usually made of plywood.
Dragon ribs are longitudinal members on both sides of the hull. Together with the ribs, a net structure is formed to fix the side plates of the ship and increase the structural strength of the hull. The keel of a ship model is usually made of rectangular pine strips.
Hull plate Hull plate includes side plates and bottom plates. The geometric shape of the hull is determined by the shape of the hull plate. Various external forces, such as longitudinal bending force, water pressure and wave impact force, first act on the hull plate. The hull plate of a ship model can be spliced and bonded by pine strips and pine boards.
Stern keel Some hulls are also equipped with stern keel, which is a longitudinal member installed at the joint between the ship's side and the bottom of the ship. It can reduce the swaying phenomenon of ships sailing in waves. The bilge keel of the ship model can be made of copper or iron with a thickness of 0.5 ~1mm.
The bow column and stern column are installed at the head end and tail end of the hull respectively, and the lower part is connected with the keel. They can strengthen the hull to withstand wave impact and water pressure, as well as the longitudinal collision and vibration of the propeller when it works.
6. Introduce the shape and function of the ship. 150 essay "Ship" refers to any vehicle that uses the buoyancy of water and relies on the power of manpower, sails and engines (such as steam engines, gas turbines, diesel engines and nuclear power plants) to pull, pull, push, paddle or push propellers and high-pressure nozzles to move on the water. In addition, civilian ships are generally called boats (called sampans in ancient times), wheels (boats) and boats, military ships are called boats (called sampans in ancient times) and boats, and small ships are called sampans, boats, rafts or boats, collectively referred to as ships, boats or boats.
Basic structure
A big ship propelled by a machine can be called a ship. Smaller boats are called boats (boats or boats). Every ship has an object called the hull. Early ships were made of wood, and wheels with paddles were installed on both sides or tail of the ship. The wheels are turned by manpower, and the paddles pull the water backwards to make the boat move forward. Today's ships are mostly made of metal, driven by engines and using propellers. All hulls are hollow, so they are heavier.
Various pictures of ships (20 photos)
Light, can float on the water. Anchors are usually located at the bow, and some have anchors at the front and rear, while propellers are always installed at the stern.
Hull part
The hull consists of deck, side plate, bottom plate, keel, side keel, keel, ribs, stern post, stern post and other parts.
Keel keel is a longitudinal member connecting the stern column and the stern column in the center of the hull base. It mainly bears the longitudinal bending moment of the hull. When making a ship model, you should choose rectangular pine strips with straight wood grain and no knots.
Side keels are longitudinal members on both sides of the keels. Bear part of the longitudinal bending moment and improve the strength of the hull to bear external forces. The side keel of a ship is usually made of pine strips with rectangular cross section.
Rib ribs are transverse members in the hull. It bears the lateral water pressure and maintains the geometric shape of the hull. The ribs of ship models are usually made of plywood.
Dragon ribs are longitudinal members on both sides of the hull. Together with the ribs, a net structure is formed to fix the side plates of the ship and increase the structural strength of the hull. The keel of a ship model is usually made of rectangular pine strips.
Hull plate Hull plate includes side plates and bottom plates. The geometric shape of the hull is determined by the shape of the hull plate. Various external forces, such as longitudinal bending force, water pressure and wave impact force, first act on the hull plate. The hull plate of a ship model can be spliced and bonded by pine strips and pine boards.
Stern keel Some hulls are also equipped with stern keel, which is a longitudinal member installed at the joint between the ship's side and the bottom of the ship. It can reduce the swaying phenomenon of ships sailing in waves. The bilge keel of the ship model can be made of copper or iron with a thickness of 0.5 ~1mm.
The bow column and stern column are installed at the head end and tail end of the hull respectively, and the lower part is connected with the keel. They can strengthen the hull to withstand wave impact and water pressure, as well as the longitudinal collision and vibration of the propeller when it works.
Bow: The front of a ship. The bend on both sides of the hull is called the bow.
Stern: The back of a ship. The curved parts on both sides of the hull are called quarters.
Hull structure analysis
Bilge: the part where the side plate of a ship meets the bottom plate of the ship.
7. What does the keel of a modern ship mean? The keel is the most important longitudinal continuous part of a ship, and the keel bottom plate is the weakest part, so it is generally thickened. It plays the role of supporting the ship. Of course, if the keel is broken, the ship will be finished.
This website has a detailed introduction to the structure of the main parts of the ship (including drawings), including an introduction to the keel modern ship.