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Ship draft measurement method

A measurement method and technology for ships, which can be applied to equipment that reduces the movement of ships, equipment that increases the stability of ships, ships, etc., can solve problems such as poor measurement accuracy, large wind and waves, and threats to the personal safety of measurement personnel, so as to reduce measurement errors. , the effect of ensuring personal safety

Pending Publication Date: 2021-07-23
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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Problems solved by technology

[0003] In the prior art, in order to obtain the draft of the ship, technicians have designed a variety of draft instruments to measure it. However, due to the strong wind and waves at sea, the draft instruments often have large deviations, so it is often necessary to use manual visual inspection to read the ship. draft
At this time, surveyors will get off the ship and

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Embodiment Construction

[0027] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0028] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to s...

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Abstract

The invention discloses a ship draft measurement method, which relates to the technical field of ship design. The ship draft measurement method comprises the steps of preparation work, measurement work and calculation work. Firstly, a measurement point is arranged on a deck, and a range finder is installed at the measurement point; a wave period of a sea area where ship testing is located is obtained, a plurality of measurement periods are set, and the measurement periods are positive integer multiples of the wave period. Secondly, the height S from the deck to the sea surface is measured through a range finder, and a plurality of S values are measured and obtained in each measurement period; then, the average value S' of the multiple S values in each measurement period is calculated, the average value of all S' is calculated to obtain Sa, finally, the actual ship draft (D-Sa) is calculated, and D is the height from the deck to the ship bottom. When the ship draft measurement method is used, the ship draft can be accurately measured, a measurer does not need to get on and off the ship, and the personal safety of the measurer can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of ship design, in particular to a method for measuring ship draft. Background technique [0002] After the ship is built, sea trials are required to ensure that the relevant performance requirements are met. Among them, the ship's speed is an important assessment indicator in the ship contract. If the ship's speed fails to meet the contract requirements, it will face the risk of fines or even the shipowner abandoning the ship. In order to obtain the speed of the ship, it is necessary to measure the speed of the ship. Before measuring the speed, we must confirm the initial state of the ship, including the draft of the ship and the wind speed and direction. [0003] In the prior art, in order to obtain the draft of the ship, technicians have designed a variety of draft instruments to measure it. However, due to the strong wind and waves at sea, the draft instruments often have large deviations, so it is oft...

Claims

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Application Information

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IPC IPC(8): B63B39/12
CPCB63B39/12
Inventor 游晓琴
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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