A calculation method of ship loading based on excel

A calculation method and excel technology, applied in geometric CAD, instruments, electrical digital data processing, etc., can solve the problems of lower loading efficiency, high cost, and high price, and achieve the effect of saving software and time costs and improving efficiency

Active Publication Date: 2021-07-30
江苏新扬子造船有限公司
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Problems solved by technology

The above two software are expensive and costly, and the computer software manufacturer does not provide it to the shipyard during the sea trial
The working conditions pre-configured by the design institute using NAPA before the trial voyage often cannot meet the actual needs, and the actual stowage will change with time, so it needs to be re-stowed, especially for large oil tankers, which reduces the loading efficiency and increases cost

Method used

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  • A calculation method of ship loading based on excel
  • A calculation method of ship loading based on excel

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Embodiment 1

[0034] see figure 1 , an Excel-based ship loading calculation method involved in the present invention, the basic formula is F=W-B, M=∫F*d(x) (wherein: F shear force W ship weight B buoyancy M bending moment) The specific method steps are as follows :

[0035] The first part is to calculate the shear force. According to the shear force F=W-B, it is necessary to know the weight of the W ship and the buoyancy of the B ship;

[0036] 1.1. Calculate the ship's weight W:

[0037] The weight W of the ship can be divided into two parts for calculation, the first part is the weight of the empty ship, and the second part is the weight brought by the loading of the cabin;

[0038] The weight of the light ship and its distribution along the length of the ship are compiled according to the loading manual; the weight brought by loading can be obtained from the sounding table. This step requires the preparation of functions (offset\trend\match\) to generate the corresponding weight and C...

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Abstract

A kind of Excel-based ship loading calculation method that the present invention relates to, the basic formula is F=W-B, M=∫F*d(x), and it includes the following content: a calculates shear force, formula: shear force F=W ‑B; a1 calculate ship weight W: a2 calculate ship buoyancy B: a2.1 calculate draft, refer to the formula: D head = D level float + δ bow, D tail = D level float + δ tail; a2.2 pass step a2 .1 The calculated volume of the final draft is the buoyancy; a3 Get the shear force at each rib station number through F=W‑B; b Calculate the bending moment, the formula: M=∫F*d(x); cSet Parameters: density of water area, density of cabin liquid, allowable value of shear force under different working conditions, allowable value of bending moment under different working conditions; Stowage; then compile the function to generate hydrostatic data; the last key automatically calculates. The invention ensures that the strength of the ship does not exceed the allowable value, ensures the safe navigation of the ship, saves software and time costs, and greatly improves efficiency.

Description

technical field [0001] The invention relates to the technical field of software development, in particular to an Excel-based ship loading calculation method. Background technique [0002] Ships need to be stowed during construction, docking and sea trial to achieve the required draft and displacement, and to ensure that the strength of the ship does not exceed the allowable value to ensure safe navigation of the ship. [0003] The ship is stowed with the help of the professional NAPA software of the design institute during the process of floating out of dock and trial voyage. During the trial voyage, it needs to be stowed by the loading computer software provided by the loading computer manufacturer (the software is based on the loading manual). The above two softwares are expensive and costly, and the manufacturer of the computer software loaded during the trial voyage does not provide it to the shipyard. The working conditions pre-configured by the design institute using ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15
CPCG06F30/15G06F2119/14
Inventor 束方银张冠东陈剑常月军严金灿
Owner 江苏新扬子造船有限公司
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