How many marine anchors are equipped with ships?
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First, the basis of how many marine anchors and marine anchors are equipped with the ship is ().
1 type displacement under the summer load line;
2 the width of the ship;
3 from the summer load waterline to the effective height at the top of the uppermost compartment;
4 The sum of the hull part above the summer load line and the superstructure and the side projection area of each deck with a width greater than B/4.
2. The reasons why the ship is equipped with many marine anchors and marine anchor chains are:
A. Chief of the ship
B. Total tonnage of the ship
C. Number of ship armor
D. Ship displacement
3. The technology of how many marine anchors and marine anchors are equipped with ships is:
For newly constructed ships, the marine anchors and marine anchors provided on the ship shall be checked in the table listed in Specification 1 according to the ship's navigation area, the type of ship and the number of short loads. For ships in operation, in some special cases, other useful information is obtained through the correlation between the marine anchor and the marine anchor chain parameters. For example, how long the length of a marine anchor chain is equivalent to the weight of a marine anchor has a role in throwing and starting a ship anchor. For example, for a second-hand ship with a long ship age, the ship's data is incomplete. If the ship's anchor chain needs to be replaced during ship repair, can the material of the ship's anchor chain be determined by the weight of the ship's anchor and the diameter of the ship's anchor chain. Level to order marine anchor chains. In addition, in some marine anchoring safety studies, if the functional relationship between the marine anchor and the marine anchor chain parameters is mastered, it is also conducive to theoretical analysis. The relationship between the mass of single ship anchor, the wear limit of marine anchor chain and the number of wine is given, but the estimation error is not explained. According to the technical specifications of marine anchors and marine anchor chains [1 and GB 1], some empirical formulas are fitted by least squares method, and the fitting error is explained to facilitate.
4. How many marine anchors and marine anchors are equipped with ships?
The marine anchor and marine anchor chain shall be selected according to the type of the ship, the waters to be sailed and according to the size of the ship's armor according to the data listed in the specification.
The number of equipment N or the number of rigs is a parameter reflecting the magnitude of the wind and flow forces that the hull can receive.
Equipment for cargo ships, bulk carriers, oil tankers, suction dredgers, ferries, etc. are selected according to N. The number of ship anchors to be provided by the ship, the weight of each ship anchor, the class, total length and diameter of the ship anchor chain are obtained from the inventory table.
If the ship should be equipped with a single number of ship anchor chains, the right ship anchor will be equipped with one more. Ten thousand-ton cargo ships generally have at least 10 marine anchor chains for each main ship anchor. For ships in the infinite navigation zone, each main ship anchor shall be equipped with 12 marine anchor chains. In addition, at least one marine anchor shackle and four connecting shackles or connecting links shall be reserved on board, and a large shackle for floating marine chains shall be provided. AM1 grade chains with tensile stresses less than 400 N/mm2 cannot be used for high grip marine anchors. AM3 grade chain is only suitable for marine anchor chains with a chain diameter of 20.5mm or more.