CN109131770A - A method of measurement vessel displacement - Google Patents
A method of measurement vessel displacement Download PDFInfo
- Publication number
- CN109131770A CN109131770A CN201811003188.XA CN201811003188A CN109131770A CN 109131770 A CN109131770 A CN 109131770A CN 201811003188 A CN201811003188 A CN 201811003188A CN 109131770 A CN109131770 A CN 109131770A
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- Prior art keywords
- ship
- deck
- graduated scale
- scale
- vessel displacement
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention discloses a kind of method for measuring vessel displacement, comprising the following steps: step S10, multiple graduated scales are fixed on the deck of topside, and extend into one end of each graduated scale in water, wherein it is d that graduated scale, which extend into the depth in water,；Step S20, scale value of the deck on each graduated scale is read, wherein the scale value of deck on the scale is a；Step S30, according to the draft amount c of the distance between deck and ship baseline b Ship ', wherein the draft amount c of ship meets following relationship: c=b- (a-d)；Step S40: each draft amount of two topsides is fitted, and obtains matched curve, and between digital simulation curve and ship baseline surrounded space volume, finally obtain the displacement of ship.Its precision measured is high, operating cost is low, high-efficient and its good security.
Description
Technical field
The present invention relates to ship domain more particularly to a kind of methods for measuring vessel displacement.
Background technique
Ship generally requires before completion is delivered carries out clean ship weighing, that is, measures the weight of clean ship.The prior art generally makes
The weight of clean ship is measured using the following method: measure respectively ship it is first, in, draft amount of the tail in topside, but general feelings
Under condition, ship has certain hogging under clean ship and generates, and needs first to be modified read draft amount, and then basis is repaired
Draft amount after just determines vessel displacement, finally obtains the light weight of the ship.Although making to obtain with the aforedescribed process
The weight of clean ship, obtains that there are deficiencies below: 1, measuring light weight using this kind of method, one shares the reading of draft amount at six
Number (at port and starboard each three), reads absorb water quantity it is less, therefore measure obtain clean ship weight accuracy it is not high；2, upper
During stating measurement, needs to modify to the hogging of ship just, reduce the precision of drinking water reading, also further resulted in sky
The inaccuracy of the weight of ship；3, carry out drinking water reading when, need staff take canoe around target ship rotate one week into
Row reading, needs to drag target ship away from harbour a distance using tugboat, to reserve enough disengaging spaces for canoe, this
Kind way needs tugboat and canoe coordinating operation, not only time-consuming and laborious but also at high cost, low efficiency.
Summary of the invention
It is an object of the present invention to: a kind of method for measuring vessel displacement is provided, the precision of measurement is high.
It is another object of the present invention to: a kind of method for measuring vessel displacement is provided, operating cost is low and imitates
Rate is high.
Another object of the present invention is: providing a kind of method for measuring vessel displacement, good security.
To reach this purpose, the invention adopts the following technical scheme:
A kind of method measuring vessel displacement is provided, comprising the following steps:
Step S10, multiple graduated scales are fixed on the deck of topside, and stretch one end of each graduated scale
Enter into water, wherein it is d that the graduated scale, which extend into the depth in water,；
Step S20, scale value of the deck on each graduated scale is read, wherein the deck is at the quarter
The scale value spent on ruler is a；
Step S30, according to the draft amount c of the distance between the deck and ship baseline b Ship ', wherein the ship
The draft amount c of oceangoing ship meets following relationship: c=b- (a-d).
Step S40: the two each draft amounts of topside being fitted, matched curve is obtained, and it is bent to calculate the fitting
The volume in surrounded space, finally obtains the displacement of the ship between line and the ship baseline.
The a preferred technical solution of method as the measurement vessel displacement, in step slo, described
Ship is respectively fixed with five on the larboard deck and on the deck of the ship close to starboard side
The graduated scale, each graduated scale are spaced apart.
As a preferred technical solution of the method for measuring vessel displacement, include: in step slo
Step S11, in step slo include: step S11, positioning rope is provided, the positioning rope is fixed in the horizontal direction
On the deck, and arrange that the positioning rope close to the topside, wherein the graduated scale and the positioning rope are detachable
Connection.
The a preferred technical solution of method as the measurement vessel displacement, the graduated scale are flexible carve
Ruler is spent, the end that the flexible scale ruler protrudes into water is connected with weight.
The a preferred technical solution of method as the measurement vessel displacement, the graduated scale are that rigidity is carved
Spend ruler
The a preferred technical solution of method as the measurement vessel displacement, the graduated scale pass through buckle
It is connect with the positioning rope.
The a preferred technical solution of method as the measurement vessel displacement, the graduated scale extend into water
The depth d in face is 1m.
The a preferred technical solution of method as the measurement vessel displacement, the graduated scale passes through two-sided
Glue is fixed with the deck.
The a preferred technical solution of method as the measurement vessel displacement, in the step S10,
Before the graduated scale is fixed on the deck, the distance between the deck and the ship baseline b are first measured.
The a preferred technical solution of method as the measurement vessel displacement, further includes step S50: described
Positioning rope is dismantled from the deck.
The invention has the benefit that have the advantage that can be in the side of a ship of ship for this method compared with traditional method
The multiple positions in side carry out the reading of draft amounts, improve the accuracy of the measurement of the vessel displacement, and are entirely measuring
In method, do not need using to canoe and tugboat, job step is simple, measurement cost is low, and can be improved the speed of measurement.
Detailed description of the invention
The present invention will be further described in detail below based on the drawings and embodiments.
Fig. 1 is the distribution map of the ship baseline of embodiment, deck and waterline.
Fig. 2 is the position view of the graduated scale and position line in the method for measurement vessel displacement described in embodiment.
In figure:
1, deck；2, waterline；3, ship baseline；4, taper plummet；5, positioning rope；6, graduated scale；7, matched curve.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
It will the technical scheme of the embodiment of the invention will be described in further detail in conjunction with attached drawing, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those skilled in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
In the description of the present invention unless specifically defined or limited otherwise, term " connected ", " connection ", " fixation " are answered
It is interpreted broadly, for example, it may be being fixedly connected, may be a detachable connection, or is integral；It can be mechanical connection,
It can be electrical connection；It can be directly connected, the company inside two elements can also be can be indirectly connected through an intermediary
Logical or two elements interaction relationship.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Embodiment one:
As depicted in figs. 1 and 2, the present invention provides a kind of method for measuring vessel displacement, comprising the following steps:
Step S10, multiple graduated scales 6 are fixed on the deck 1 of topside, and make the one of each graduated scale 6
End is extend into water, wherein it is d that the graduated scale 6, which extend into the depth in water,；
Step S20, the scale value of the deck 1 on each graduated scale 6 is read, wherein the deck 1 is described
Scale value on graduated scale 6 is a；
Step S30, draft amount c (the i.e. water of the ship is calculated according to the distance between the deck 1 and ship baseline 3 b
The distance between line 2 and ship baseline 3), wherein the draft amount c of ship meets following relationship: c=b- (a-d).
Step S40: the draft amount of two topsides is fitted, matched curve 7 is obtained, and calculates the matched curve
The volume in surrounded space, finally obtains the displacement of the ship between 7 and the ship baseline 3.
Graduated scale 6 is fixed on the side of a ship side position on deck 1, enables graduated scale 6 in the side of a ship side position of ship by first
Plate 1 extends downwardly into water, and the depth d for extending into graduated scale 6 in water, wherein graduated scale 6 is deep into the depth in water
D is less than or equal to the draft amount c of the ship.In the method, deck 1 can be read on the deck of ship 1 in graduated scale 6
On scale value, calculate ship using the depth d that the distance between deck and ship baseline 3 b and graduated scale 6 are extend into water
The draft amount c of oceangoing ship, i.e. c=b- (a-d) then successively intend each draft amount of each draft amount of ship larboard and starboard
It closes, calculating the spatial volume size surrounded between the matched curve 7 and the ship baseline 3 can be obtained the draining of ship
Amount.Specifically, by the size of each draft amount of calculated ship larboard and the size of the draft amount of ship starboard in ship
Identification point is drawn in model respectively, by the corresponding identification point of each draft amount of ship larboard and each drinking water of ship starboard
It measures corresponding identification point and is in turn connected to form matched curve 7 with a smooth curve, the matched curve and the formation of ship baseline 3
The space of one closure recycles ship overall performance analysis software (NAPA) to calculate the matched curve 7 and the ship base
The spatial volume size surrounded between line 3, can be obtained the displacement of ship.Compared with traditional method this method have with
Lower advantage: the draft amount of the multiple positions of topside of ship can be respectively obtained, the accurate of the measurement of the vessel displacement is improved
Property, and in the method entirely measured, it not needing using to canoe and tugboat, job step is simple, measurement cost is low, and
It can be improved the speed of measurement.
In order to improve the precision of measurement, in step slo, the ship on the larboard deck 1 and
Five graduated scales 6 are respectively fixed on the deck 1 of the ship close to starboard side, between each graduated scale 6
Every distribution.Specifically, ship larboard, the graduated scale 6 on starboard are arranged in a one-to-one correspondence respectively, so as to by the draft amount of both sides topside
It is fitted.Wherein, ship larboard, the stem on starboard, ship midship, be distributed with graduated scale 6 on ship stern.But other real
It applies in example, in the ship on the larboard deck 1 and on the deck 1 of the ship close to starboard side
The quantity of the fixed graduated scale 6 may each be the different numbers such as 3,4,6,7 and 8.
It should be noted that the quantity of the graduated scale 6 on the deck 1 of the topside is more, the measured row for obtaining ship
Water is more accurate.
The a preferred technical solution of method as the measurement vessel displacement, includes: step in step slo
S11, positioning rope 5 is provided, the positioning rope 5 is fixed in the horizontal direction on the deck 1, and make the positioning rope 5 close to institute
State the topside arrangement of ship, wherein the graduated scale 6 is detachably connected with the positioning rope 5.Specifically, the positioning
Rope 5 is located at the edge placement on deck 1.The setting of positioning rope 5 is mainly used for fixed graduated scale 6, specifically, the positioning rope 5
It is bonded with deck 1.Actual in use, needing for positioning rope 5 to be fixed on the deck 1, to guarantee the process in measurement
Along the vertical direction of ship by a relatively large margin sagging will not occur for middle positioning rope 5 under the traction of graduated scale 6.Improve graduated scale
The accuracy of 6 readings.Preferably, the positioning rope 5 is twisted wire.
In one embodiment, the graduated scale 6 is flexible scale ruler, and the end that the flexible scale ruler protrudes into water is connected with
Weight.Flexible scale ruler is set by graduated scale 6, facilitates storage graduated scale 6, saves the occupied space of graduated scale 6.Flexibility is carved
It is connected with weight on degree ruler, one that the one end of graduated scale 6 in depth water is connect with positioning rope 5 is made under the action of weight
In the state tightened between end, and the interference of wind-force and bourn acting force is reduced, improves the accuracy that graduated scale 6 is read.?
In the present embodiment, the weight is taper plummet 4, but in other examples, weight is also possible to other types
Weight, flexible scale ruler is straightened as long as being capable of providing gravity.
In another embodiment, the graduated scale 6 is rigid graduated scale.In the present embodiment, set rigid for graduated scale 6
Property graduated scale, can remain graduated scale 6 in the state stretched, avoid graduated scale 6 in wind-force and bourn acting force
The read untrue of graduated scale is bent and caused under effect.
Wherein, the graduated scale 6 is connect by buckle with the positioning rope 5.Make graduated scale 6 and positioning rope 5 by buckle
Formation is detachably connected, and simplifies the fixation difficulty of graduated scale 6.But in other examples, also can use bandage will carve
Degree ruler 6 ties up on positioning rope 5, or graduated scale 6 is fixed on positioning rope 5 using double-sided adhesive.
It in the present embodiment, further include step S21 in the step 20: first in the corresponding each scale in the deck 1
Make identifier on position on ruler 6, then the graduated scale 6 dismantled from the deck 1, then again respectively read described in
The scale value of identifier corresponding position on the graduated scale 6.By the method, after graduated scale 6 can be dismantled from deck 1
The corresponding reading on graduated scale 6 in deck 1 is read, operating personnel is not needed and reads reading on graduated scale 6 on the topside of ship
Number, reduces the reading difficulty of graduated scale 6, improves the accuracy rate of measurement.
Specifically, it is 1m that the graduated scale 6, which extend into the depth d of the water surface,.But in other examples, the scale
The depth d that ruler 6 extend into the water surface may be set to be other depth such as 0.5m, 1.5m and 2m, as long as graduated scale 6 gos deep into
It is less than or equal to the draft amount c of the ship to the depth d of the water surface.
In the step S10, before graduated scale 6 is fixed on the deck 1,1 plate of first and institute are first measured
State the distance between ship baseline 3 b.
The method of the measurement vessel displacement further includes step S50: the positioning rope 5 is dismantled from the deck 1.
It after the displacement for obtaining ship, obtains positioning rope 5 and is dismantled from deck 1, avoid the presence due to positioning rope 5 and influence ship
Normal use.
Embodiment two:
The present embodiment is basically the same as the first embodiment, and difference is: the graduated scale passes through double-sided adhesive and the deck
It is fixed.Graduated scale is fixed by double-sided adhesive and deck, facilitates after measurement and removes graduated scale from deck.In this reality
It applies in example, does not need that graduated scale is fixed using positioning rope, but graduated scale is directly anchored on deck, reduce behaviour
The step of making.
In the description of this article, it is to be understood that term " on ", "lower", " right side ", etc. orientation or positional relationships be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description and simplification and operates, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, term " first ", " second " are only used to distinguish between description, have no special meaning.
In the description of this specification, the description of reference term " embodiment ", " example " etc. means to combine the embodiment
Or example particular features, structures, materials, or characteristics described are included at least one embodiment or example of the invention.?
In this specification, schematic expression of the above terms be may not refer to the same embodiment or example.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification be only be to understand device, those skilled in the art should
It considers the specification as a whole, the technical solutions in the embodiments can also be appropriately combined, and forming those skilled in the art can
With the other embodiments of understanding.
The technical principle of the invention is described above in combination with a specific embodiment.These descriptions are intended merely to explain of the invention
Principle, and shall not be construed in any way as a limitation of the scope of protection of the invention.Based on the explanation herein, the technology of this field
Personnel can associate with other specific embodiments of the invention without creative labor, these modes are fallen within
Within protection scope of the present invention.
Claims (10)
1. a kind of method for measuring vessel displacement, which comprises the following steps:
Step S10, multiple graduated scales are fixed on the deck of topside, and extend into one end of each graduated scale
In water, wherein it is d that the graduated scale, which extend into the depth in water,；
Step S20, scale value of the deck on each graduated scale is read, wherein the deck is in the graduated scale
On scale value be a；
Step S30, according to the draft amount c of the distance between the deck and ship baseline b Ship ', wherein the ship
Draft amount c meet following relationship: c=b- (a-d)；
Step S40: the two each draft amounts of topside being fitted, matched curve is obtained, and calculate the matched curve with
The volume in surrounded space, finally obtains the displacement of the ship between the ship baseline.
2. the method for measurement vessel displacement according to claim 1, which is characterized in that in step slo, in the ship
Oceangoing ship is respectively fixed with five institutes on the larboard deck and on the deck of the ship close to starboard side
Graduated scale is stated, each graduated scale is spaced apart.
3. the method for measurement vessel displacement according to claim 1, which is characterized in that include: in step slo
Step S11, positioning rope is provided, the positioning rope is fixed in the horizontal direction on the deck, and make the positioning rope
It is arranged close to the topside, wherein the graduated scale is detachably connected with the positioning rope.
4. the method for measurement vessel displacement according to claim 1, which is characterized in that the graduated scale is flexible scale
Ruler, the end that the flexible scale ruler protrudes into water are connected with weight.
5. the method for measurement vessel displacement according to claim 1, which is characterized in that the graduated scale is rigid scale
Ruler.
6. it is according to claim 3 measurement vessel displacement method, which is characterized in that the graduated scale by buckle with
The positioning rope connection.
7. the method for measurement vessel displacement according to claim 1, which is characterized in that the graduated scale extend into the water surface
Depth d be 1m.
8. the method for measurement vessel displacement according to claim 1, which is characterized in that the graduated scale passes through double-sided adhesive
It is fixed with the deck.
9. the method for measurement vessel displacement according to claim 8, which is characterized in that in the step S10, inciting somebody to action
Before the graduated scale is fixed on the deck, the distance between the deck and the ship baseline b are first measured.
10. the method for measurement vessel displacement according to claim 3 or 4, which is characterized in that further include step S50: institute
Positioning rope is stated to dismantle from the deck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811003188.XA CN109131770B (en) | 2018-08-30 | 2018-08-30 | Method for measuring displacement of ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811003188.XA CN109131770B (en) | 2018-08-30 | 2018-08-30 | Method for measuring displacement of ship |
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| Publication Number | Publication Date |
|---|---|
| CN109131770A true CN109131770A (en) | 2019-01-04 |
| CN109131770B CN109131770B (en) | 2020-08-07 |
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ID=64829418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811003188.XA Active CN109131770B (en) | 2018-08-30 | 2018-08-30 | Method for measuring displacement of ship |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114379726A (en) * | 2020-10-21 | 2022-04-22 | 中国石油天然气集团有限公司 | Method, device, equipment and storage medium for determining empty weight of ship |
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| CN114379726A (en) * | 2020-10-21 | 2022-04-22 | 中国石油天然气集团有限公司 | Method, device, equipment and storage medium for determining empty weight of ship |
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| CN109131770B (en) | 2020-08-07 |
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