CN107458553A - A kind of modification method of drauht value - Google Patents
A kind of modification method of drauht value Download PDFInfo
- Publication number
- CN107458553A CN107458553A CN201710628411.9A CN201710628411A CN107458553A CN 107458553 A CN107458553 A CN 107458553A CN 201710628411 A CN201710628411 A CN 201710628411A CN 107458553 A CN107458553 A CN 107458553A
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- China
- Prior art keywords
- ship
- value
- stem
- water gauge
- distance
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/12—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude for indicating draught or load
Abstract
The present invention discloses a kind of modification method of drauht value, comprises the following steps：Step S10, read the stem of ship, ship midship, ship stern water gauge drinking water reading, respectively TF ", TM ", TA "；Step S20, Angle of Trim α and stem, theoretical drinking water value TF ', TM ', the TA ' of ship midship and ship stern of ship are calculated；Step S30, the Mean Draught value T of ship is calculated as followsmeanAnd drinking water correction value Δ, Tmean=(TF '+n*TM '+TA ')/(n+2), the Δ=T of (TF '+TA ')/2mean, wherein, n is natural number, and n=1~10；Step S40, the real draft value TF=TF ' Δs of stem, the real draft value TA=TA ' Δs of ship stern.Method according to the present invention can obtain water gauge reading, Mean Draught value, theoretical drinking water value and the drinking water correction value Δ of ship, theoretical drinking water value and the difference for absorbing water correction value are the real draft value of ship, so as to which the drinking water reading for realizing shipping depth gauge is converted into the FP of ship, the drinking water value at after perpendicular, and accuracy is high.
Description
Technical field
The present invention relates to a kind of modification method of drauht value.
Background technology
Ship is after shipyard completion, delivery is preceding, it is necessary to be measured to the weight of ship, to examine whether ship meets to set
The requirement of meter, while the actual pay load of ship is determined, ship load line is portrayed, and the drinking water display instrument to ship carries out school
It is accurate.This just needs to read drauht to determine the displacement of ship, and then obtains the numerical value such as required light weight.
But FP, the after perpendicular of the drinking water graduation mark of ship and ship are generally misaligned, cause the drinking water value measured
Inaccuracy, and it is to need the drinking water absorbed water at scale being scaled to ship bow, at after perpendicular to determine the indexs such as the displacement of ship
Drinking water.Therefore, need badly seek a kind of number of degrees of the drinking water chi by ship change to the FP of ship, at after perpendicular absorb water
Method.
The content of the invention
, can be by the drinking water reading of shipping depth gauge it is an object of the invention to provide a kind of modification method of drauht value
The FP of ship, the drinking water value at after perpendicular are converted into, and accuracy is high.
To use following technical scheme up to this purpose, the present invention：
A kind of modification method of drauht value is provided, comprised the following steps：
Step S10, read the stem of ship, ship midship, ship stern water gauge drinking water reading, respectively TF ", TM ", TA "；
Step S20, according to Triangle Principle calculate the ship Angle of Trim α and the stem, the ship midship with
And theoretical drinking water value TF ', TM ', the TA ' of the ship stern；
Step S30, the Mean Draught value T of the ship is calculated as followsmeanAnd drinking water correction value Δ,
Tmean=(TF '+n*TM '+TA ')/(n+2)
Δ=(TF '+TA ')/2-Tmean
Wherein, n is natural number, and n=1~10；
Step S40, real draft value TF=TF '-Δ of described stem, the real draft value TA=TA ' of the ship stern-
Δ。
As a kind of preferred scheme of the modification method of drauht value, n=5~8.
As a kind of preferred scheme of the modification method of drauht value, n=6.
As a kind of preferred scheme of the modification method of drauht value, the Angle of Trim α is calculated as follows：
Tan α=(TF "-TA ")/D
α=arctan [(TF "-TA ")/D]
Wherein, D is the distance between water gauge of water gauge and the ship stern of the stem.
As a kind of preferred scheme of the modification method of drauht value, the step S20 specifically includes following steps：
Step S21, the distance between the water gauge of FP and stem d1, the water of Middle Perpendicular and the ship midship are measured
The distance between the water gauge of the distance between chi d2 and after perpendicular and ship stern d3；
Step S22, the distance between the water gauge of the stem and the water gauge of the ship stern D are measured；
Step S23, calculate as follows the stem, the ship midship and the ship stern theoretical drinking water value TF ',
TM′、TA′：
TF '=TF "-d1*tan α
TM '=TM "-d2*tan α
TA '=TA "+d3*tan α
Wherein, the water gauge of the ship midship is located at the Middle Perpendicular close to the side of the ship stern.
As a kind of preferred scheme of the modification method of drauht value, step S21, measure the FP with it is described
The distance between water gauge of stem d1, the distance between the water gauge d2 of the Middle Perpendicular and the ship midship and the after perpendicular with
The distance between the water gauge of ship stern d3；
Step S22, the distance between the water gauge of the stem and the water gauge of the ship stern D are measured；
Step S23, calculate as follows the stem, the ship midship and the ship stern theoretical drinking water value TF ',
TM′、TA′：
TF '=TF "-d1*tan α
TM '=TM "+d2*tan α
TA '=TA "+d3*tan α
Wherein, the water gauge of the ship midship is located at the Middle Perpendicular close to the side of the stem.
As a kind of preferred scheme of the modification method of drauht value, the trim Δ H=TF-TA of the ship.
Beneficial effects of the present invention：Method according to the present invention can obtain the water gauge reading of ship, Mean Draught value, reason
By drinking water value and drinking water correction value Δ, theoretical drinking water value and the difference for absorbing water correction value are the real draft value of ship, so as to real
The drinking water reading of shipping depth gauge is now converted into the FP of ship, the drinking water value at after perpendicular, and accuracy is high.
Brief description of the drawings
Fig. 1 is the instrumentation plan of the drauht value of the embodiment of the present invention.
In figure：
1st, stem；2nd, ship midship；3rd, ship stern；4th, the first water gauge；5th, the second water gauge；6th, the 3rd water gauge；
100th, waterline；200th, FP；300th, midship is slavered over；400th, after perpendicular.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
As shown in figure 1, embodiments of the invention provide a kind of modification method of drauht value, this method includes following step
Suddenly：
Step S10, read the stem 1 of ship, ship midship 2, ship stern 3 water gauge drinking water reading, respectively TF ", TM ",
TA″；
Step S20, the Angle of Trim α of ship and the reason of stem 1, ship midship 2 and ship stern 3 are calculated according to Triangle Principle
By drinking water value TF ', TM ', TA '；
Step S30, the Mean Draught value T of ship is calculated as followsmeanAnd drinking water correction value Δ,
Tmean=(TF '+n*TM '+TA ')/(n+2)
Δ=(TF '+TA ')/2-Tmean
Wherein, n is natural number, and n=1~10；
Step S40, real draft value TF=TF '-Δ of stem 1, real draft value TA=TA '-Δ of ship stern 3.
As shown in figure 1, neighbouring stem 1 is provided with the first water gauge 4 on ship, neighbouring ship midship 2 is provided with the second water gauge 5, adjacent
It is TF " that nearly ship stern 3, which is provided with the distance between the 3rd water gauge 6, the infall and bottom of ship of the water gauge 4 of waterline 100 and first, water
The distance between infall and bottom of ship of the water gauge 5 of line 100 and second are TM ", the infall of the water gauge 6 of waterline 100 and the 3rd
The distance between bottom of ship is TA ", former according still further to triangle after the Angle of Trim α that ship is calculated according to Triangle Principle
Reason calculates theoretical drinking water value TF ', TM ', the TA ' of stem 1, ship midship 2 and ship stern 3 according to α, you can Mean Draught is calculated
Value TmeanAnd drinking water correction value Δ, theoretical drinking water value TF ', TM ', TA ' respectively and drinking water correction value Δ difference be ship reality
Border drinking water value, so as to which the drinking water reading for realizing shipping depth gauge is converted into the FP 200 of ship, the drinking water at after perpendicular 400
Value, and accuracy is high.
Wherein, n=5~8, the Mean Draught value T being calculatedmeanValue is more accurate, can reduce final real draft
The error of value.
Further, during n=6, i.e. Tmean=(TF '+6TM '+TA ')/8, the Mean Draught value T being calculatedmeanValue is most
Accurately, it can further improve the accuracy of real draft value.
Wherein, Angle of Trim α is calculated as follows：
Tan α=(TF "-TA ")/D
α=arctan [(TF "-TA ")/D]
Wherein, D is the distance between water gauge of water gauge and the ship stern 3 of stem 1, i.e., between the first water gauge 4 and the 3rd water gauge 6
Distance；FP 200 and stern can also be measured with the distance between direct measurement the first water gauge 4 and the 3rd water gauge 6 D
The distance between vertical line 400 L, then measures the distance between FP 200 and the first water gauge 4 of stem 1 d1 and stern hangs down
The distance between 3rd water gauge 6 of line 400 and ship stern 3 d3, D=L-d1-d3.
In one of embodiment of the present invention, as shown in figure 1, the water gauge of ship midship 2 is located at Middle Perpendicular 400 close to ship stern
3 side, step S20 specifically include following steps：
Step S21, the distance between the water gauge (the first water gauge 4) of FP 200 and stem 1 d1, Middle Perpendicular 300 are measured
The distance between water gauge (the second water gauge 5) of ship midship 2 is between d2 and the water gauge of after perpendicular 400 and ship stern 3 (the 3rd water gauge 6)
Distance d3；
Step S22, the distance between the water gauge of stem 1 and the water gauge of ship stern 3 D are measured；
Step S23, theoretical drinking water value TF ', TM ', the TA ' of stem 1, ship midship 2 and ship stern 3 are calculated as follows：
TF '=TF "-d1*tan α
TM '=TM "-d2*tan α
TA '=TA "+d3*tan α
In another embodiment of the present invention, wherein, the water gauge of ship midship 2 is located at Middle Perpendicular 400 close to the one of stem 1
Side, step S20 specifically include following steps：
Step S21, the distance between the water gauge of FP 200 and stem 1 d1, the water of Middle Perpendicular 300 and ship midship 2 are measured
The distance between the water gauge of the distance between chi d2 and after perpendicular 400 and ship stern 3 d3；
Step S22, the distance between the water gauge of stem 1 and the water gauge of ship stern 3 D are measured；
Step S23, theoretical drinking water value TF ', TM ', the TA ' of stem 1, ship midship 2 and ship stern 3 are calculated as follows：
TF '=TF "-d1*tan α
TM '=TM "+d2*tan α
TA '=TA "+d3*tan α
In the present embodiment, the trim Δ H=TF-TA of ship.
In the present invention, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or dark
Show relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second ", " are defined
One or more this feature can be expressed or be implicitly included to three " feature.
It is to be understood that above-mentioned embodiment is only that presently preferred embodiments of the present invention and institute's application technology are former
Reason, in technical scope disclosed in this invention, change that any one skilled in the art is readily apparent that or
Replace, should all cover within the scope of the present invention.
Above by specific embodiment, the present invention is described, but the present invention is not limited to these specific implementations
Example.It will be understood by those skilled in the art that various modifications, equivalent substitution, change etc. can also be made to the present invention.But this
A little conversion, all should be within protection scope of the present invention without departing from the spirit of the present invention.In addition, present specification and power
Some terms used in sharp claim are not limitation, it is only for are easy to describe.An in addition, " reality for above many places
Apply example ", " another embodiment " etc. represent different embodiments, naturally it is also possible to its all or part is incorporated in an implementation
In example.
Claims (7)
1. a kind of modification method of drauht value, it is characterised in that comprise the following steps：
Step S10, read the stem of ship, ship midship, ship stern water gauge drinking water reading, respectively TF ", TM ", TA "；
Step S20, Angle of Trim α and the stem, the ship midship and institute of the ship are calculated according to Triangle Principle
State theoretical drinking water value TF ', TM ', the TA ' of ship stern；
Step S30, the Mean Draught value T of the ship is calculated as followsmeanAnd drinking water correction value Δ, Tmean=(TF '+
n*TM′+TA′)/(n+2)
Δ=(TF '+TA ')/2-Tmean
Wherein, n is natural number, and n=1~10；
Step S40, real draft value TF=TF '-Δ of described stem, real draft value TA=TA '-Δ of the ship stern.
2. the modification method of drauht value according to claim 1, it is characterised in that n=5~8.
3. the modification method of drauht value according to claim 1, it is characterised in that n=6.
4. the modification method of drauht value according to claim 1, it is characterised in that the Angle of Trim α presses following public affairs
Formula is calculated：
Tan α=(TF "-TA ")/D
α=arctan [(TF "-TA ")/D]
Wherein, D is the distance between water gauge of water gauge and the ship stern of the stem.
5. the modification method of drauht value according to claim 1, it is characterised in that the step S20 is specifically included
Following steps：
Step S21, measure the distance between the water gauge of FP and stem d1, Middle Perpendicular and the ship midship water gauge it
Between distance d2 and after perpendicular and the ship stern the distance between water gauge d3；
Step S22, the distance between the water gauge of the stem and the water gauge of the ship stern D are measured；
Step S23, calculate as follows the theoretical drinking water value TF ' of the stem, the ship midship and the ship stern, TM ',
TA′：
TF '=TF "-d1*tan α
TM '=TM "-d2*tan α
TA '=TA "+d3*tan α
Wherein, the water gauge of the ship midship is located at the Middle Perpendicular close to the side of the ship stern.
6. the modification method of drauht value according to claim 5, it is characterised in that step S21, measure the bow
The distance between the distance between the water gauge of vertical line and stem d1, the Middle Perpendicular and the ship midship water gauge d2 and institute
State the distance between the water gauge of after perpendicular and ship stern d3；
Step S22, the distance between the water gauge of the stem and the water gauge of the ship stern D are measured；
Step S23, calculate as follows the theoretical drinking water value TF ' of the stem, the ship midship and the ship stern, TM ',
TA′：
TF '=TF "-d1*tan α
TM '=TM "+d2*tan α
TA '=TA "+d3*tan α
Wherein, the water gauge of the ship midship is located at the Middle Perpendicular close to the side of the stem.
7. the modification method of the drauht value according to any one of claim 1 to 6, it is characterised in that the ship
Trim Δ H=TF-TA.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628411.9A CN107458553A (en) | 2017-07-28 | 2017-07-28 | A kind of modification method of drauht value |
| PCT/CN2017/104147 WO2019019353A1 (en) | 2017-07-28 | 2017-09-29 | Method for correcting draft value of ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628411.9A CN107458553A (en) | 2017-07-28 | 2017-07-28 | A kind of modification method of drauht value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107458553A true CN107458553A (en) | 2017-12-12 |
Family
ID=60547714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710628411.9A Pending CN107458553A (en) | 2017-07-28 | 2017-07-28 | A kind of modification method of drauht value |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107458553A (en) |
| WO (1) | WO2019019353A1 (en) |
Cited By (5)
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| CN109131770A (en) * | 2018-08-30 | 2019-01-04 | 广船国际有限公司 | A method of measurement vessel displacement |
| CN110171547A (en) * | 2019-05-28 | 2019-08-27 | 沪东中华造船(集团)有限公司 | A kind of light-tonnage vessel harbour drinking water acquisition methods |
| CN110228571A (en) * | 2018-03-06 | 2019-09-13 | 镇江市亿华系统集成有限公司 | A kind of trailing suction hopper dredger drauht calculation optimization method |
| CN113022808A (en) * | 2021-03-05 | 2021-06-25 | 山东交通学院 | Ship water gauge measuring method |
| CN113353208A (en) * | 2021-06-23 | 2021-09-07 | 芜湖造船厂有限公司 | Method for judging initial floating state of ship inclination test |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110228571A (en) * | 2018-03-06 | 2019-09-13 | 镇江市亿华系统集成有限公司 | A kind of trailing suction hopper dredger drauht calculation optimization method |
| CN110228571B (en) * | 2018-03-06 | 2021-07-13 | 镇江市亿华系统集成有限公司 | Ship draft calculation optimization method for trailing suction hopper dredger |
| CN109131770A (en) * | 2018-08-30 | 2019-01-04 | 广船国际有限公司 | A method of measurement vessel displacement |
| CN109131770B (en) * | 2018-08-30 | 2020-08-07 | 广船国际有限公司 | Method for measuring displacement of ship |
| CN110171547A (en) * | 2019-05-28 | 2019-08-27 | 沪东中华造船(集团)有限公司 | A kind of light-tonnage vessel harbour drinking water acquisition methods |
| CN113022808A (en) * | 2021-03-05 | 2021-06-25 | 山东交通学院 | Ship water gauge measuring method |
| CN113353208A (en) * | 2021-06-23 | 2021-09-07 | 芜湖造船厂有限公司 | Method for judging initial floating state of ship inclination test |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019019353A1 (en) | 2019-01-31 |
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