1. For an anchor to work, the most basic condition is to wait for something to be hooked on the seabed. If the anchor chain is not long enough, the anchor will not work.
If the seabed is flat, or the thing hooked by the anchor is not fixed, or the hook is not very strong, it is okay if the sea is calm, but once the waves are too big, the anchor cannot hook things, and the anchor will lose its function. , this is called “anchor walking”. It is very dangerous for a ship to lose anchor when it is anchored, because the main engine of a ship is usually stopped when it is anchored. If you start the ship immediately, it will take time. It is very dangerous for a ship without power to drift around. Dangerous. Therefore, the concept of anchorage came into being. Anchorage, by implication, is rough under the seabed, and it must be sheltered from the wind.
2. The weight of the anchor chain is negligible for the ship, so it won’t have much effect.
In addition, if you pay attention, generally speaking, the anchor chain of a ship at anchor is straight. Do you think there will be any friction on the anchor chain at this time? If you are on the beach, you will find a lot of small fishing boats. They The anchor chain is a thick rope.
3. When viewed from the ship, the anchor chain is straight, but under the water there is a section of anchor that is close to parallel to the seabed (actually close to the seabed) to provide gripping force, which is then transferred to the ship through the anchor chain. The chain has been focusing on the research and development and production of ship anchors, Hall anchors, Spek anchors, naval anchors and high-grip anchors for 18 years.
This is used to resist the impact of external loads such as sea currents and wind waves on positioning. The reason why one section is close to the seabed is to consider the impact of force. Think about it, if an anchor and anchor chain are pulled straight, the anchor will easily go away, but if there is a section Being close to the seabed can provide a margin
This is possible within a certain range. The weight of a ship’s anchor chain is not large, but there are regulations on how large a ship should be. This is due to the gripping force that the anchor can generate and its own inertia. The friction of the anchor chain also plays a role.
Post time: Aug-17-2024