CN109606552B - Method for positioning stabilizer base of inclined ship body - Google Patents
Method for positioning stabilizer base of inclined ship body Download PDFInfo
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- CN109606552B CN109606552B CN201811291693.9A CN201811291693A CN109606552B CN 109606552 B CN109606552 B CN 109606552B CN 201811291693 A CN201811291693 A CN 201811291693A CN 109606552 B CN109606552 B CN 109606552B
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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
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
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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
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Abstract
The invention discloses a method for positioning a ship stabilizer base of an inclined slipway. The invention has the advantages of simple operation, cost saving and high positioning precision.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a method for positioning a fin stabilizer base of an inclined ship body.
Background
At present, ship design increasingly focuses on stability of ships in the sailing process, and a good method for improving stability is to arrange stabilizer fins on two sides of a ship and use the stabilizer fins to resist ship body fluctuation caused by waves.
The ship is built on the inclined slipway, but the inclined slipway is provided with a certain angle, the angle of the central line of the stabilizer base is determined by the angle of the inclined slipway, and how to accurately position the central line of the stabilizer base becomes an important difficult problem of stabilizer installation and ship stability.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the positioning method of the inclined ship body fin stabilizer base, which is simple and convenient to operate, saves the cost and ensures the positioning precision.
In order to achieve the purpose, the invention provides the following technical scheme that the method for positioning the stabilizer base of the inclined ship hull comprises the following steps:
the method comprises the following steps: collecting theoretical data from design drawing including the longitudinal slope X of inclined ship, the distance between the central line of stabilizer base and ship base line
The angle alpha between the central line of the anti-rolling fin base and the rib line of the ship body in the side view and the angle beta between the central line of the anti-rolling fin base and the central line of the ship body in the cross section in the front and back views;
step two: finding out the central point of the outer plate of the stabilizer base through a tape measure, a total station or a horizontal tube according to the theoretical data acquired in the step one;
step three: arranging a platform below the central point of the outer plate of the stabilizer base, adjusting the platform to be parallel to the ship body, and recording the distance between the platform and the ship body base line;
step four: and marking two parallel lines, namely transverse parallel lines and longitudinal parallel lines on the platform according to the hull central line and the hull rib line marked on the slipway by using a total station or a laser theodolite.
Step five: taking the center point of the outer plate of the stabilizing fin base as a reference, finding out the intersection point of the center point of the outer plate of the stabilizing fin base on the platform by using a plumb bob, wherein the distance between the center point of the outer plate of the stabilizing fin base and the platform is X, and the distance between the foot of the center point of the outer plate of the stabilizing fin base on the platform and the intersection point of the center point of the outer plate of the stabilizing fin base on the platform can be calculated according to a trigonometric function as (the distance between the foot of the center point of the outer plate
+
) X, and a straight line formed by connecting a foot of the central point of the outer plate of the anti-rolling fin base on the platform and an intersection point of the central point of the outer plate of the anti-rolling fin base on the platform is parallel to the longitudinal parallel line;
step six: in a side view, the angle alpha between the longitudinal projection line of the central line of the anti-rolling fin base and the rib line of the ship body, so that the distance between the intersection point of the longitudinal projection line of the central line of the anti-rolling fin base and the platform and the vertical foot of the central point of the outer plate of the anti-rolling fin base on the platform is (
+
) Tan alpha, at this time, a straight line formed by the intersection point of the longitudinal projection line of the central line of the anti-rolling fin base and the platform and the foot of the central point of the outer plate of the anti-rolling fin base on the platform is parallel to the longitudinal parallel line, and the distance between the straight line and the longitudinal parallel line is recorded as
；
Step seven: recording the distance between the intersection point of the longitudinal projection line of the central line of the stabilizing fin base and the platform and the transverse parallel line as
Passing through the central line of the base of the fin stabilizerDrawing a cross straight line parallel to the transverse parallel line at the intersection of the longitudinal projection line and the platform;
step eight: in the front and back view, the angle between the transverse projection line of the central line of the stabilizing fin base and the central line of the transverse section ship body is beta, so that the distance between the intersection point of the transverse projection line of the central line of the stabilizing fin base and the platform and the intersection point of the central point of the outer plate of the stabilizing fin base on the platform can be calculated to be (
+
) tan beta, and the connecting line of the two is parallel to the transverse parallel line and the distance between the two is
。
Drawing a vertical straight line parallel to the longitudinal parallel line through the intersection point of the transverse projection line of the central line of the stabilizing fin base and the platform, and recording the distance between the vertical straight line and the longitudinal parallel line as
；
Step ten: and the intersection point between the horizontal straight line and the longitudinal straight line is a point on the central line of the fin stabilizer base, and the connecting line between the point and the central point of the outer plate of the fin stabilizer base is the central line of the fin stabilizer base.
Preferably, the platform is wood system, and timber is easily acquireed and low cost, and is comparatively light simultaneously, and the construction is simpler.
Preferably, the platform is square in shape.
According to the technical scheme, the invention has the following advantages: 1. the used materials such as a wooden platform and the like are easy to obtain, and meanwhile, the price is low, so that a large amount of cost can be saved; 2. the operation steps are simple, and the construction is easy; 3. the positioning accuracy can be ensured.
Drawings
FIG. 1 is a schematic diagram illustrating the determination of the center point of the outer plate of the stabilizer base.
Fig. 2 is a schematic drawing of a line drawn parallel to the longitudinal direction and a line drawn parallel to the transverse direction.
FIG. 3 is a schematic diagram of side projection finding.
Fig. 4 is a schematic diagram of determining a horizontal line.
FIG. 5 is a schematic view of the projection of fore and aft to determine the longitudinal line.
FIG. 6 is a schematic view of determining the centerline of the stabilizer fin base.
Detailed Description
The method for positioning the fin base of a tilted hull stabilizer according to the present invention will be further described in detail with reference to the accompanying drawings and examples, so as to clearly understand the working manner and principle of the fin base, but the protection scope of the present invention is not limited thereby.
As shown in fig. 1, 2, 3, 4, 5 and 6, a method for positioning a stabilizer base of an inclined hull comprises the following steps:
the method comprises the following steps: collecting theoretical data, wherein the theoretical data comprises that the longitudinal slope of an inclined ship body is 0.05, the distance between the center line 1 of an outer plate of a stabilizer base and the center line of the outer plate of the stabilizer base is 1200mm from FR52+400mm, the distance between the center line of the stabilizer base and a ship body base line 2 is 1200mm, the angle between the center line of the stabilizer base and a rib line 4 of the ship body in a side view is 45 degrees, and the angle between the center line of the stabilizer base and a cross-section ship body center line 5 in a front-back view (namely a fore-aft projection view) is 30 degrees;
step two: finding out the central point of the outer plate of the stabilizer base through a tape measure, a total station or a horizontal tube according to the theoretical data acquired in the step one
；
Step three: at the center of the outer plate of the anti-rolling fin base
A platform 3 is arranged below the ship body, the platform 3 is of a square wooden structure, the platform 3 is adjusted to be parallel to the ship body, and the distance between the platform 3 and the ship body base line 2 is recorded to be 1000 mm;
step four: and (3) marking two parallel lines, namely a transverse parallel line 6 and a longitudinal parallel line 7 on the platform according to the hull central line 5 and the hull rib line 4 marked on the slipway by using a total station or a laser theodolite.
Step five: by the center point of the outer plate of the anti-rolling fin base
Using a plumb bob to find out the central point of the outer plate of the anti-rolling fin base as a reference
Point of intersection on the platform 3
Since the slope of the slipway is X, the center point of the outer plate of the stabilizer base
The distance between the fin base and the platform 3 is 1200mm +1000mm =2200mm, and the center point of the outer plate of the anti-rolling fin base can be calculated according to a trigonometric function
Feet on the platform 3
And the center point of the outer plate of the anti-rolling fin base
Point of intersection on the platform 3
The distance between the two parts is 2200mm multiplied by 0.05=110mm, and the center point of the outer plate of the stabilizing fin base is
Feet on the platform 3
And the center point of the outer plate of the anti-rolling fin base
Point of intersection on the platform 3
The connected straight lines are parallel to the longitudinal parallel lines 7;
step six: in side view, the angle between the longitudinal projection line of the central line of the stabilizer base and the rib line 4 of the ship body is 45 degrees, so that the intersection point of the longitudinal projection line of the central line of the stabilizer base and the platform 3 is
And the center point of the outer plate of the anti-rolling fin base
Feet on the platform 3
The distance between the center line of the stabilizing fin base and the platform 3 is 2200mm multiplied by tan45 degrees =2200mm, at the time
And the center point of the outer plate of the anti-rolling fin base
Feet on the platform 3
Is parallel to the longitudinal parallel line 7, and the distance between the straight line and the longitudinal parallel line 7 is recorded as
；
Step seven: recording the intersection point of the longitudinal projection line of the central line of the stabilizing fin base and the platform 3
At a distance from the transverse parallel 6
The intersection point of the longitudinal projection line passing through the central line of the stabilizing fin base and the platform 3
Drawing a cross straight line parallel to a transverse parallel line 6
；
Step eight: in front and back views, the angle between the transverse projection line of the central line of the anti-rolling fin base and the central line 5 of the transverse-section ship body is 30 degrees, and therefore the intersection point of the transverse projection line of the central line of the anti-rolling fin base and the platform 3 can be calculated
And the center point of the outer plate of the anti-rolling fin base
Point of intersection on the platform 3
2200mm x tan30 ° =1270mm, and the connecting lines are parallel to the transverse parallel lines 6 and the distance between the connecting lines and the transverse parallel lines 6 is
。
Step nine, crossing the intersection point of the transverse projection line of the central line of the anti-rolling fin base and the platform 3
Drawing a longitudinal straight line parallel to the longitudinal parallel line 7
Vertical line
At a distance from the longitudinal parallel 7
；
Step ten: horizontal line
And the vertical line
Cross point between them
I.e. a point on the central line of the stabilizer base, which is the central point of the outer plate of the stabilizer base
The connecting line between the two parts is the central line of the anti-rolling fin base.
It goes without saying that the positioning method of the fin base of the inclined hull of the invention has other similar structural compositions and modes of use besides the above examples. In summary, the method for positioning the fin base of the inclined hull stabilizer of the present invention also includes other modifications and alternatives that will be apparent to those skilled in the art.
Claims (3)
1. A method for locating the base of a fin of an inclined hull, the method comprising the steps of:
the method comprises the following steps: collecting theoretical data from design drawing including the longitudinal slope X of inclined ship, the distance between the central line of stabilizer base and ship base line
The angle alpha between the central line of the anti-rolling fin base and the rib line of the ship body in the side view and the angle beta between the central line of the anti-rolling fin base and the central line of the ship body in the cross section in the front and back views;
step two: finding out the central point of the outer plate of the stabilizer base through a tape measure, a total station or a horizontal tube according to the theoretical data acquired in the step one;
step three: a platform is arranged below the central point of the outer plate of the stabilizer base, the platform is adjusted to be parallel to the ship body, and the distance between the platform and the ship body base line is recorded at the moment
；
Step four: marking longitudinal parallel lines parallel to the center line of the ship body and transverse parallel lines parallel to the rib line of the ship body on the platform according to the center line of the ship body marked on the ship body and the rib line of the ship body by using a total station or a laser theodolite;
step five: using the center point of the outer plate of the stabilizer base as a reference, finding out the intersection point of the center point of the outer plate of the stabilizer base on the platform by using a plumb bob, wherein the distance between the center point of the outer plate of the stabilizer base and the platform is X because the slope of the shipway is X
+
The distance between the foot of the central point of the outer plate of the stabilizing fin base on the platform and the intersection point of the central point of the outer plate of the stabilizing fin base on the platform can be calculated according to the trigonometric function as (
+
) X, and a straight line formed by connecting a foot of the central point of the outer plate of the anti-rolling fin base on the platform and an intersection point of the central point of the outer plate of the anti-rolling fin base on the platform is parallel to the longitudinal parallel line;
step six: in a side view, the angle alpha between the longitudinal projection line of the central line of the anti-rolling fin base and the rib line of the ship body, so that the distance between the intersection point of the longitudinal projection line of the central line of the anti-rolling fin base and the platform and the vertical foot of the central point of the outer plate of the anti-rolling fin base on the platform is (
+
) Tan alpha, at this time, a straight line formed by the intersection point of the longitudinal projection line of the central line of the anti-rolling fin base and the platform and the foot of the central point of the outer plate of the anti-rolling fin base on the platform is parallel to the longitudinal parallel line, and the distance between the straight line and the longitudinal parallel line is recorded as
；
Step seven: recording the distance between the intersection point of the longitudinal projection line of the central line of the stabilizing fin base and the platform and the transverse parallel line as
Drawing a horizontal straight line parallel to the horizontal parallel line through the intersection of the longitudinal projection line of the central line of the stabilizing fin base and the platform;
step eight: in the front and back view, the angle between the transverse projection line of the central line of the stabilizing fin base and the central line of the transverse section ship body is beta, so that the distance between the intersection point of the transverse projection line of the central line of the stabilizing fin base and the platform and the intersection point of the central point of the outer plate of the stabilizing fin base on the platform can be calculated to be (
+
) tan beta, and the connecting line of the two is parallel to the transverse parallel line and the distance between the two is
；
Drawing a vertical straight line parallel to the longitudinal parallel line through the intersection point of the transverse projection line of the central line of the stabilizing fin base and the platform, and recording the distance between the vertical straight line and the longitudinal parallel line as
；
Step ten: and the intersection point between the horizontal straight line and the longitudinal straight line is a point on the central line of the fin stabilizer base, and the connecting line between the point and the central point of the outer plate of the fin stabilizer base is the central line of the fin stabilizer base.
2. The method of claim 1, wherein the platform is made of wood.
3. The method of claim 1 or 2, wherein the platform is square in shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811291693.9A CN109606552B (en) | 2018-10-31 | 2018-10-31 | Method for positioning stabilizer base of inclined ship body |
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| CN109606552B true CN109606552B (en) | 2020-12-11 |
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| CN110615064B (en) * | 2019-09-30 | 2020-12-15 | 广州黄船海洋工程有限公司 | Equipment installation point positioning method of saturated diving system |
| CN113029087B (en) * | 2021-04-27 | 2022-10-25 | 江南造船(集团)有限责任公司 | Method for measuring space installation angle of ship body base |
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| JP3513325B2 (en) * | 1996-04-17 | 2004-03-31 | 三菱重工業株式会社 | Fin stabilizer device |
| CN104085499A (en) * | 2014-07-11 | 2014-10-08 | 芜湖新联造船有限公司 | Ship fin stabilizer installation method |
| CN106985966B (en) * | 2017-04-14 | 2018-11-02 | 上海外高桥造船有限公司 | The installation and locating method of bilge keelson |
| CN207071882U (en) * | 2017-07-26 | 2018-03-06 | 芜湖蓝水船舶技术有限公司 | Stabilizer spatial axis positioner |
| CN108674577B (en) * | 2018-05-18 | 2020-02-11 | 中船黄埔文冲船舶有限公司 | Lofting method of retractable fin stabilizer outer plate |
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