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What is the function of anchor

Date:2019/11/07  Click:94 times
The main function of ship anchor is to fix and stabilize the ship. From the following aspects.
1. The most basic condition for an anchor to work is to catch things at the bottom of the sea.
If the chain is not long enough, the anchor will not work.
If the bottom of the sea is flat, or the anchor is not fixed, or the hook is not too strong, if the waves are calm, it is OK. Once the waves are too large, the anchor will lose its function, which is called "anchor walking". During the anchoring period, the anchor walking is very dangerous, because the main engine of the ship stops when it is anchoring, if it is immediately stopped It takes time to sail. It's very dangerous to drift around without power. Therefore, the concept of anchorage comes into being. Anchorage, by implication, is rough under the sea. In addition, it should be able to avoid wind.
2. The weight of the anchor chain is negligible for the ship, which will not play a great role.
In addition, if you pay attention to the fact that, generally speaking, the anchor chain is straight when anchoring, do you think there will be any friction force on the anchor chain at this time?
If you are at the seaside, you will find a lot of small fishing boats. Their anchor chains are thick ropes.
3. In the view of the ship, the anchor chain is straight, but it is underwater
There is a section that is close to the seabed (actually close to the seabed)
The anchor provides grip, which is then transmitted to the ship through the chain.
So as to resist the influence of external load of current and wind wave on positioning
There's a section that's close to the bottom of the ocean
It is to consider the influence of force
Think about it. An anchor is easy to walk when the chain is straight
And there's a section that's close to the bottom of the ocean that provides a margin
Within a certain range, it is possible.
The weight of the anchor is not big, but the size of the ship's anchor is specified
This is due to the grip force that the anchor can produce and the factors of its own inertia force
The chain friction also works