CN110348101A - The wind load acquisition methods and device of offshore structures - Google Patents
The wind load acquisition methods and device of offshore structures Download PDFInfo
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- CN110348101A CN110348101A CN201910595316.2A CN201910595316A CN110348101A CN 110348101 A CN110348101 A CN 110348101A CN 201910595316 A CN201910595316 A CN 201910595316A CN 110348101 A CN110348101 A CN 110348101A
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Abstract
This application involves a kind of wind load acquisition methods of offshore structures, this method comprises: obtaining the offshore structures in the different profiles held on wind face by carrying out the different contours extracts held on wind face to offshore structures；To the contours extract for holding wind facial contour and carrying out different height section more than sea level, the profile that wind face corresponds to different height section is held described in acquisition；According to the area of profile corresponding to different height section, the corresponding height coefficient of the corresponding form factor of the offshore structures and different height section, the wind force coefficient of wind face on the whole is held described in calculating；According to the wind load for holding wind force coefficient, wind direction angle and the wind speed of wind face on the whole and calculating the offshore structures.Effective acquisition can be carried out to the wind load of offshore structures using method provided by the present application.
Description
Technical field
This application involves technical field of data processing more particularly to the wind load acquisition methods and dress of a kind of offshore structures
It sets, computer equipment, computer readable storage medium.
Background technique
In the design process of the offshore structures such as semisubmersible platform, ship, wind load is moved to offshore structures
The important parameter of the analyses such as power positioning and anchoring positioning.
In existing realization, parent ship Analogy or model test method are generallyd use to the wind load of offshore structures
Lotus is obtained.Parent ship Analogy be the wind load of ship is estimated according to parent ship model-test data, but
Due to being difficult to obtain suitable parent ship model-test data, the wind load accuracy for being easy to cause estimation to obtain is not high.Model
Test method is then but to need to prepare sea in advance by being tested to obtain wind load to designing a model for offshore structures
Works designs a model, and the time that required test prepares is longer, and substantially increases estimated cost.
Therefore, at sea in the design process of works, how efficiently to obtain the wind load of offshore structures is urgently
The technical issues of solution.
It should be noted that information is only used for reinforcing the reason to the background of the application disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
Based on above-mentioned technical problem, the application provides the wind load acquisition methods and device, calculating of a kind of offshore structures
Machine equipment, computer readable storage medium.
A kind of wind load acquisition methods of offshore structures, comprising: held on wind face by carrying out difference to offshore structures
Contours extract, obtain the offshore structures in difference and hold profiles on wind face；To it is more than sea level hold wind facial contour into
The contours extract in row different height section holds the profile that wind face corresponds to different height section described in acquisition；According to different height
The area of profile corresponding to section, the corresponding height system of the corresponding form factor of the offshore structures and different height section
It counts, holds the wind force coefficient of wind face on the whole described in calculating；Wind force coefficient, the wind direction of wind face on the whole are held according to described
Angle and wind speed calculate the wind load of the offshore structures.
A kind of wind load acquisition device of offshore structures, comprising: overall profile extraction module, for by being tied to sea
Structure object carries out the different contours extracts held on wind face, obtains the offshore structures in the different profiles held on wind face；Section wheel
Wide extraction module, for holding described in acquisition to the contours extract for holding wind facial contour and carrying out different height section more than sea level
Wind face corresponds to the profile in different height section；Wind force coefficient computing module, for being taken turns according to corresponding to different height section
Wide area, the corresponding height coefficient of the corresponding form factor of the offshore structures and different height section, described in calculating
Hold the wind force coefficient of wind face on the whole；Wind load computing module, for holding the wind load of wind face on the whole according to
Coefficient, wind direction angle and wind speed calculate the wind load of the offshore structures.
A kind of computer equipment, including processor and memory are stored with computer-readable instruction on the memory, institute
State the wind load acquisition methods that offshore structures as described above is realized when computer-readable instruction is executed by the processor.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
The wind load acquisition methods of offshore structures as described above are realized when row.
Compared with prior art, the embodiment of the present application has the advantages that
In the above-mentioned technical solutions, it first passes through and the different contours extracts held on wind face is carried out to offshore structures, obtain sea
Upper works holds the profile on wind face in difference, then to the profile for holding wind facial contour and carrying out different height section on sea level
It extracts, holds profile of the wind face on different height section to obtain, to be taken turns according to corresponding to different height section obtained
The area of exterior feature, the corresponding height coefficient calculating of the corresponding form factor of offshore structures and different height section hold wind face in totality
On wind force coefficient, and wind force coefficient, wind direction angle and the wind speed of wind face on the whole are held according to gained, sea are calculated
The wind load of upper works.
In the revealed method of the embodiment of the present application, only need to the appearance profile to offshore structures once extracted,
The wind load that offshore structures can accordingly be got needs not rely upon parent ship model-test data or offshore structures
It designs a model, so that the acquisition process of wind load is more efficiently.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and in specification it is used to explain the principle of the application together.
Fig. 1 is a kind of flow chart of the wind load acquisition methods of offshore structures shown according to an exemplary embodiment；
Fig. 2 be in Fig. 1 corresponding embodiment step 110 in the flow chart of one embodiment；
Fig. 3 be in Fig. 1 corresponding embodiment step 130 in the flow chart of one embodiment；
Fig. 4 be in Fig. 1 corresponding embodiment step 130 in the flow chart of another embodiment；
Fig. 5 is a kind of process of the wind load acquisition methods of the offshore structures shown according to another exemplary embodiment
Figure；
Fig. 6 be in Fig. 1 corresponding embodiment step 170 in the flow chart of one embodiment；
Fig. 7 is a kind of orthographic projection view of semisubmersible platform shown according to an exemplary embodiment；
Fig. 8 is a kind of lateral projection's view of semisubmersible platform shown according to an exemplary embodiment；
Fig. 9 is the schematic diagram that orthographic projection profile obtained by contours extract is carried out to orthographic projection view shown in Fig. 7；
Figure 10 is the schematic diagram that lateral projection's profile obtained by contours extract is carried out to lateral projection's view shown in Fig. 8；
Figure 11 is a kind of block diagram of the wind load acquisition device of offshore structures shown according to an exemplary embodiment；
Figure 12 is a kind of hardware structural diagram of computer equipment shown according to an exemplary embodiment.
Through the above attached drawings, it has been shown that the specific embodiment of the application will be hereinafter described in more detail, these attached drawings
It is not intended to limit the range of the application design in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the application.
Specific embodiment
Here will the description is performed on the exemplary embodiment in detail, the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
As described above, wind load is to offshore structure in the design process of the offshore structures such as semisubmersible platform, ship
Object carries out the important parameter of the analyses such as dynamic positioning and anchoring positioning, therefore the acquisition of wind load setting for offshore structures
It is particularly significant for meter.
In existing wind load acquisition methods, it is necessary to dependent on parent ship model-test data or offshore structures
It designs a model to obtain the wind load that offshore structures is born, effective acquisition can not be carried out to wind load, therefore, it is necessary to mention
For a kind of technical solution that can carry out effective acquisition to the wind load of offshore structures.
Referring to Fig. 1, the one aspect based on the application provides a kind of wind load acquisition methods of offshore structures, use
Changed with the wind load to offshore structures and is expeditiously obtained.
As shown in Figure 1, in an exemplary embodiment, a kind of wind load acquisition methods of offshore structures may include
Following steps:
Step 110, by carrying out the different contours extracts held on wind face to offshore structures, offshore structures is obtained not
With the profile held on wind face.
Wherein, offshore structures refer to section structure not in seawater, and rest part structural body be located at sea level with
On engineering structure, as previously described, offshore structures can be ship or semisubmersible platform, this place is not to offshore structure
The specific structure type of object is limited.
The wind face of holding of offshore structures refers to the offshore structures surface for bearing pressure produced by air flows, for example, holding
Wind face can be frontal plane of projection and the lateral projection face of offshore structures, can also be the offshore structures surface of other projection forms,
This place is also limited not to this.
It is extracted by holding the profile on wind face in difference to offshore structures, it can be according to offshore structure obtained
Object holds the monnolithic case profile that the profile on wind face determines in difference.
Step 130, to the contours extract for holding wind facial contour and carrying out different height section more than sea level, wind face is held in acquisition
Profile corresponding to different height section.
Wherein, since wind face of holding more than sea level is an exposure in air, it is therefore desirable to bear produced by air flowing
Pressure, i.e. wind load.And the different height section for corresponding to sea level or more, holds the distribution of the born wind load in wind face
Should be different, as a result, in order to which the wind load to offshore structures is accurately obtained, it is necessary to be held to offshore structures
Wind face is accordingly obtained in the distribution of the born wind load in different height section.
By holding wind face with acquisition and existing to the contours extract for holding wind facial contour and carrying out different height section more than sea level
Profile on different height section, to further obtain offshore structures according to profile of the wind face on different height section is held
Hold wind face in the distribution of the born wind load in different height section.
It should be noted that it is preset for holding different height section of the wind face more than sea level, and different high
It is also not identical to spend the corresponding height coefficient in section, wherein the corresponding height coefficient in different height section is for carrying out holding wind face
Wind load calculates, and specifically refers to step 150.
Illustratively, recorded with reference to " marine mobile platform classification rules " second chapter 2 Section 2, by sea level with
On height be divided into several sections such as 0-15.3 meters, 16.3-30.5 meters, 30.5-46.0 meters, 46.0-61.0 meters, wherein 0-
Height coefficient corresponding to 15.3 meters of height sections is that height coefficient corresponding to 1.0,16.3-30.5 meters of height sections is 1.1,
Height coefficient corresponding to 30.5-46.0 meters of height sections is that height coefficient corresponding to 1.2,46.0-61.0 meters of height sections is
1.3.Other height sections and its corresponding this place of height coefficient are not listed one by one.
Step 150, the corresponding form factor of the area of the profile according to corresponding to different height section, offshore structures and
The wind force coefficient of wind face on the whole is held in the corresponding height coefficient in different height section, calculating.
Wherein, in " marine mobile platform classification rules " second chapter 2 Section 2, for marine knot of different shapes
Structure object is set with different form factors, and illustratively, form factor corresponding to spherical offshore structures is 0.4, and big is flat
The corresponding form factor in face (such as hull and deck house) is 1.0, and the corresponding form factor of derrick is 1.25.As a result, according to sea
The monnolithic case profile of upper works, can be obtained shape corresponding to offshore structures, so that it is determined that offshore structures is corresponding
Form factor.
And in a further embodiment, the corresponding form factor of offshore structures is preset, therefore is held in execution
It can accordingly be obtained when the calculating of wind force coefficient corresponding to wind face.
The wind load that wind face is born that holds of offshore structures refers to that holding wind face bears resultant force caused by air flowing, i.e.,
The wind load that wind face is born on the whole is held, is the offshore structures as a result, along the distributed load of height section corresponding change
The size for holding the born wind load in wind face with hold the area of wind face profile corresponding to different height section, offshore structures
The corresponding height coefficient of form factor and different height section is related.
In an exemplary embodiment, wind face held to offshore structures each, calculating holds wind face on the whole
Wind force coefficient formula are as follows:
Wherein, ρairIndicate atmospheric density, CsIndicate the corresponding form factor of offshore structures, Ch,jIndicate sea level or more
The height coefficient held wind face and correspond to different height section, j (m >=j >=1) then indicates to hold the number in height section corresponding to wind face
Amount, AjThe area of wind face profile corresponding to different height section is held in expression.
Thus in the present embodiment, the difference that offshore structures can be calculated holds the wind load system of wind face on the whole
Number.
Step 170, offshore structures is calculated according to holding wind face wind force coefficient on the whole, wind direction angle and wind speed
Wind load.
Wherein, wind direction angle refers to the direction that air is flowed, and wind speed then refers to the speed that air is flowed, air flowing
Corresponding direction and speed will all have an impact the wind load of offshore structures.
It should be noted that the wind load that the wind load of offshore structures refers to that offshore structures is born on the whole is big
It is small, it is therefore desirable to produced by holding wind face wind force coefficient on the whole and air flowing according to the difference of offshore structures
Wind direction angle and demeanour the wind load of offshore structures calculated.
Compared with prior art, method provided in this embodiment only needs to carry out the appearance profile of offshore structures primary
Property extract, can accordingly acquire the wind load of offshore structures, need not rely upon parent ship model-test data or sea
Upper works designs a model, so that the acquisition process of wind load is more efficiently.
Also, the difference that the present embodiment has also combined offshore structures holds the born wind load in wind face along different height section
The characteristics of distribution, the wind load born on the whole to offshore structures obtain, and can accurately obtain offshore structures
Wind load, so that the design for offshore structures provides effective reference data.
Referring to Fig. 2, Fig. 2 be in embodiment corresponding to Fig. 1 step 110 in the flow chart of one embodiment.Implement herein
In example, the frontal plane of projection and lateral projection face that wind face includes offshore structures are held corresponding to offshore structures.
As shown in Fig. 2, step 110 at least includes the following steps in an exemplary embodiment:
Step 111, it is corresponding that offshore structures is extracted from the orthographic projection view of offshore structures and lateral projection's view respectively
Profile calibration point.
Firstly the need of explanation, at sea in the design of works, usually by the frontal plane of projection of offshore structures and
Wind face is held as important in lateral projection face, is accordingly obtained with the wind load born on the whole to offshore structures.Cause
This in the present embodiment, using the frontal plane of projection of offshore structures and lateral projection face as holding wind face corresponding to offshore structures.
The orthographic projection view of offshore structures and lateral projection's view are designs formed in the design of works at sea
Figure, such as can be the offshore structure article pattern drawn by AutoCad mapping software.
The profile of offshore structures has been carried out accordingly in advance in the orthographic projection view of offshore structures and lateral projection's view
Calibration, that is, calibration has several profile calibration points in advance on contour line corresponding to orthographic projection view and lateral projection's view, to pass through
These profile calibration points position the orthographic projection profile and lateral projection's profile of offshore structures.Therefore in the present embodiment,
The profile calibration point that need to be only demarcated in orthographic projection view to offshore structures and lateral projection's view accordingly extract.
It is easy to understand, in order to enable profile calibration point can be realized accurate locations of contours, for complex-shaped wheel
Profile can carry out the calibration of this contour line by a large amount of profile calibration point.
Step 113, by carrying out line to the profile calibration point of extraction, orthographic projection profile and the side of offshore structures are obtained
Projected outline.
As described above, profile calibration point is used to accurately determine to the orthographic projection profile and lateral projection's profile of offshore structures
Position, for the profile calibration point extracted from orthographic projection view and lateral projection's view respectively, using smooth line successively to profile
Calibration point is attached, and can be obtained the orthographic projection profile and lateral projection's profile of offshore structures.
And in other embodiments, orthographic projection view and side of the contour line extraction algorithm from offshore structures can be used
It is directly extracted in projection view and obtains the orthographic projection profile and lateral projection's profile of offshore structures.
It is exemplary, at sea in the orthographic projection view of works and lateral projection's view, in advance to the profile of offshore structures
Line carries out special marking, such as the line color of contour line is set as distinguishing with other line colors, or by contour line
Line weight be set as distinguishing with the fineness of other lines, to be known by the contour line to this special marking
Not, the orthographic projection profile and lateral projection's profile of offshore structures be can be obtained.
As a result, through this embodiment provided by method, being capable of orthographic projection profile to offshore structures and lateral projection's wheel
Exterior feature is accurately extracted, and is provided for the subsequent contours extract hold in wind face on different height section and contour area calculating
Accurate data parameters.
Referring to Fig. 3, Fig. 3 be in embodiment corresponding to Fig. 1 step 130 in the flow chart of one embodiment.Implement herein
It to holding profile of the wind face corresponding to different height section and obtaining is carried out according to for the drinking water that offshore structures defines in example.
As shown in figure 3, step 130 at least includes the following steps in an exemplary embodiment:
Step 131, according to the drinking water of defined offshore structures, the profile for holding and being located at drinking water or more in wind facial contour is obtained
Calibration point.
Wherein, correspond to offshore structures in the height of b.s.l., convenient for reason for the drinking water that offshore structures defines
Solution, depth of the offshore structures not in seawater is the drinking water of offshore structures.
In the present embodiment, it holds the difference that wind facial contour includes offshore structures and holds profile corresponding to wind face, such as on
State the orthographic projection profile and lateral projection's profile obtained in embodiment.
Due to holding in wind facial contour containing several profile calibration points, by by each profile calibration point with respect to offshore structures
The height of bottom is compared with drinking water is defined, and can determine that holding the profile calibration point for being highly greater than drinking water in wind facial contour obtains
It is taken as being located at the profile calibration point of drinking water or more.
Illustratively, profile calibration point can be by the position coordinates of profile calibration point with respect to the height of offshore structures bottom
It determines, can determine the true altitude information that profile calibration point corresponds on offshore structures according to this position coordinates.
Step 133, profile calibration point is divided according to preset height section.
As previously mentioned, different height section more than drinking water is preset, therefore eaten to holding to be located in wind facial contour
Profile calibration point is divided to corresponding by profile calibration point more than water according to the difference in height between profile calibration point and drinking water
In height section.
Correspond to different height sections as a result, contains several profile calibration points respectively, according to different height section pair
The delineator fixed point location answered holds profile of the wind face on different height section.
Step 135, by carrying out line to the profile calibration point contained by sustained height section, acquisition holds wind face in difference
Profile on height section.
Therefore in the present embodiment, wind face is held for the difference of offshore structures, can obtain respectively it is each hold wind face position
Contoured profile of the part on different height section more than drinking water.According to holding profile of the wind face on different height section,
It can accordingly obtain and hold the area that wind face corresponds to different height section, hold the wind force coefficient of wind face on the whole to calculate.
In a further exemplary embodiment, as shown in figure 4, before step 135, step 130 can also include following step
It is rapid:
Step 210, the upper side and lower side for being located at height interval endpoint is obtained, and immediate with height interval endpoint
Profile calibration point.
Firstly the need of explanation, in varied situations, drinking water corresponding to offshore structures should also be as difference.It is exemplary
, semisubmersible platform can cope with marine different situations by way of lifting, and the drinking water of semisubmersible platform is also corresponding
It changes, for example, drinking water of the semisubmersible platform under daily drilling model or under the extreme weathers such as typhoon is different.
It at sea in the design of works, needs in view of these possible situations, reliable and stable sea is obtained with design
Upper works.Therefore, the difference for generally requiring to define offshore structures is absorbed water, and calculates offshore structures corresponding to different drinking water
The wind load born.
Correspond to different drinking water as a result, region corresponding to different height section of the face more than drinking water is also with fair wind
Corresponding change, be to hold in the profile calibration point that wind facial contour is demarcated in advance so as to cause designer, may there is no with
The corresponding profile calibration point of preset calibrations interval endpoint, therefore can not accurately be obtained in step 135 and hold wind face in different height
Profile on section, to influence to calculate accuracy to the wind load of offshore structures.
In order to solve this problem, it is necessary to accurately obtain holding for offshore structures and correspond to different height in wind facial contour
The profile point of interval endpoint, and this profile point is retrieved as to new profile calibration point, by the way that two of sustained height section are held
The corresponding profile calibration point of point is connected, and can accurately distinguish and hold the zone boundary that wind face corresponds to different height section.
In the present embodiment, by obtained respectively positioned at height interval endpoint two sides and with height interval endpoint it is closest
Two profile calibration points, the intermediate point between the two profile calibration points can be determined as corresponding to height interval endpoint
New profile calibration point.
Step 230, the intermediate point between profile calibration point is retrieved as holding and corresponds to height interval endpoint in wind facial contour
Profile calibration point, and this profile calibration point is divided to corresponding height section.
Wherein, according to the position coordinates of the acquired profile calibration point positioned at height interval endpoint two sides, by the two
Position coordinates carry out linear interpolation calculating, can be obtained position coordinates corresponding to intermediate point, hold in wind facial contour to obtain
Profile calibration point corresponding to height interval endpoint.
By the way that profile calibration point obtained is divided to corresponding height section, then according still further to described by step 135
The content profile calibration point that is included to different height section be sequentially connected, can accurately obtain and hold wind face in different height area
Between on profile.
As shown in figure 5, in an exemplary embodiment, before step 150, the wind load acquisition side of offshore structures
Method is further comprising the steps of:
Step 310, to profile of the wind face on different height section is held, the coordinate of contained profile calibration point is obtained.
Wherein, to holding before the wind force coefficient of wind face on the whole calculates, it is also necessary to correspond to according to wind face is held
The area in the region in different height section is calculated separately, that is, is calculated and held wind face corresponding profile on different height section
Area.
In the present embodiment, it needs to rely on to holding the calculating of the area of corresponding profile on different height section of wind face
The coordinate of contained profile calibration point on profile, it is therefore desirable to each delineator contained in profile corresponding to different height section
The coordinate of fixed point is accordingly obtained.
Step 330, using one of profile calibration point as fixed point, fixed point and other two neighboring profiles are successively calculated
The area of the constituted triangle of calibration point.
Wherein, wind face is held for the profile on a certain height section with one of them of offshore structure, if contained
Profile calibration point is followed successively by a1, a2, a3, a4, a5... ..., an, and with a1For fixed point, then triangle a is calculated separately1a2a3、
a1a3a4、a1a4a5... ..., a1an-1anArea.
It should be noted that when calculating the area of each triangle, need to consider the hair line direction of triangle, and according to
The hair line direction of triangle determines the positive negativity of triangle area.Illustratively, it can preset three corresponding to triangle
The counter clockwise direction on a vertex is positive, and the clockwise direction for accordingly setting three vertex corresponding to triangle is negative.
Step 350, the area and the area of profile corresponding to height section thus of triangle are obtained.
Wherein, it should be noted that when the area to the above triangle carries out summation operation, need to consider each triangle
The positive negativity of shape, and contoured surface of the wind face herein on height section is held by what the absolute value of the area sum of each triangle obtained
Product.
The method provided through this embodiment as a result, the difference that can obtain offshore structures respectively are held wind face and are corresponded to
The contour area in different height section.
As shown in fig. 6, in an exemplary embodiment, step 170 specifically includes the following steps:
Step 171, wind face wind force coefficient on the whole and wind direction angle are held according to difference, calculates offshore structures institute
Bear the wind direction coefficient of wind load.
Wherein, the wind direction coefficient of the born wind load of offshore structures includes the level of offshore structures in the horizontal direction
Wind direction coefficient, and vertical wind direction coefficient in vertical direction.
It should be appreciated that the horizontal direction of offshore structures refers to, at sea in the overall structure of works, by one of them
Side extends horizontally to the direction of another side, is then perpendicular to direction corresponding to horizontal direction in vertical direction.If with ship
Oceangoing ship is example, and horizontal direction can be understood as the direction that stern is directed toward bow, i.e. captain direction, vertical direction then refers to vertical
Directly in the direction of captain, i.e. larboard is directed toward starboard direction.
In one embodiment, it is necessary first to which wind face wind force coefficient on the whole and wind direction angle calculation are held according to difference
Obtain the resultant force coefficient of the born wind load of offshore structures.
It should be noted that the acquisition of wind load born to offshore structures, is contemplated that offshore structures in difference
The wind load born on wind face, i.e. the offshore structures resultant force that born air flowing generates on the whole are held, therefore is being counted
When calculating the corresponding resultant force coefficient of offshore structures, it is also desirable to consider that difference holds the wind force coefficient of wind face on the whole.
Illustratively, the formula of resultant force coefficient corresponding to offshore structures is calculated are as follows:
Wherein, a indicates wind direction angle, Ftotal(a) indicate that offshore structures wind direction angle is offshore structures in the case where a
Corresponding resultant force coefficient, F1Indicate wind force coefficient of the offshore structures on frontal plane of projection, F2Indicate that offshore structures is thrown in side
Wind force coefficient on shadow face.
As a result, after obtaining the corresponding resultant force coefficient of offshore structures, by calculating resultant force coefficient and wind direction angle cosine
Product can be obtained the horizontal wind direction coefficient of offshore structures, and by calculating multiplying for resultant force coefficient and wind direction angle sine
Product obtains the vertical wind direction coefficient of offshore structures, and corresponding calculation formula is as follows:
Cx(a)=Ftotal(a) cosa, Cy(a)=Ftotal(a)·sina
Wherein, Cx(a) the horizontal wind direction coefficient of offshore structures, C are indicatedy(a) the vertical wind direction system of offshore structures is indicated
Number.
Step 173, by calculating the product of wind direction coefficient and wind speed square, the wind load of offshore structures is obtained.
In the present embodiment, the product of horizontal the wind direction coefficient and wind speed square of offshore structures can be calculated separately, is obtained
The wind load of the overall structure of offshore structures in the horizontal direction, and calculate the vertical wind direction coefficient and wind of offshore structures
The product of speed square, obtains the wind load of the overall structure of offshore structures in vertical direction.
As a result, in the design to offshore structures, both horizontally and vertically according to acquired offshore structures
On wind load, can further accurately to offshore structures carry out dynamic positioning and anchoring positioning etc. analysis.
Method provided herein is further described below in conjunction with a specific application scenarios.
As shown in Figure 7 and Figure 8, Fig. 7 is the orthographic projection view of a given semisubmersible platform, and Fig. 8 is this semisubmersible platform
Lateral projection's view, the drinking water for defining semisubmersible platform is 14.25 meters, and defines the corresponding form factor of semisubmersible platform and be
1.0.Contours extract is carried out by orthographic projection view to semisubmersible platform and lateral projection's view, acquired semisubmersible platform is just
Projected outline and lateral projection's profile difference are as shown in Figure 9 and Figure 10.And it is above just by being located at drinking water to semisubmersible platform
The profile that projected outline and lateral projection's profile carry out on different height section extracts, and gained corresponds to different height section
Profile is still as shown in Figure 9 and Figure 10.
As a result, to the orthographic projection profile of semisubmersible platform and lateral projection's profile, calculate separately corresponding to different height section
The area of profile, and the wind force coefficient of the frontal plane of projection and lateral projection face of semisubmersible platform on the whole is calculated, and according to
Wind force coefficient corresponding to frontal plane of projection and lateral projection face, defined wind direction angle and wind speed calculate the wind of semisubmersible platform
Load.
Further, it is also possible to define different drinking water for semisubmersible platform, and semisubmersible platform is obtained as procedure described above and is existed
Wind load under difference drinking water.
As can be seen that the wind load acquisition methods of offshore structures provided herein, it is only necessary to offshore structures
Appearance profile carries out an extraction operation, and the subsequent wind load calculated under different drinking water is all based on the outer of extracted offshore structures
Shape profile accordingly obtains, do not need repeat offshore structure figure extraction operation so that the calculating process of wind load more quickly and
Efficiently.
Another aspect based on the application also provides a kind of wind load acquisition device of offshore structures.
As shown in figure 11, in one exemplary embodiment, a kind of wind load acquisition device of offshore structures includes whole
Profile extraction module 410, section profile extraction module 430, wind force coefficient computing module 450 and wind load computing module 470.
Overall profile extraction module 410 is used to obtain by carrying out the different contours extracts held on wind face to offshore structures
The offshore structures is obtained in the different profiles held on wind face.
Section profile extraction module 430 is used for the profile for holding wind facial contour and carrying out different height section more than sea level
It extracts, the profile that wind face corresponds to different height section is held described in acquisition.
Area, the marine knot of the wind force coefficient computing module 450 for the profile according to corresponding to different height section
The corresponding form factor of structure object and different height section corresponding height coefficient hold the wind load of wind face on the whole described in calculating
Lotus coefficient.
Wind load computing module 470 according to for holding wind force coefficient, wind direction angle and the wind of wind face on the whole
Speed calculates the wind load of the offshore structures.
In the embodiment of another exemplary, the wind face of holding of offshore structures includes frontal plane of projection and lateral projection face, entirety
Profile extraction module 410 includes profile calibration point extraction unit and holds wind facial contour acquiring unit.
Profile calibration point extraction unit is used for respectively from the orthographic projection view and lateral projection's view of the offshore structures
Extract the corresponding profile calibration point of the offshore structures.
Wind facial contour acquiring unit is held for obtaining the sea by carrying out line to the profile calibration point of extraction
The orthographic projection profile and lateral projection's profile of works.
In the embodiment of another exemplary, section profile extraction module 430 includes drinking water positioning unit, profile calibration point
Division unit and section profile acquiring unit.
Drinking water positioning unit is used for the drinking water according to defined offshore structures, holds described in acquisition and is located at institute in wind facial contour
The profile calibration point of drinking water or more is stated, the drinking water corresponds to the offshore structures in the height of b.s.l..
Profile calibration point division unit is for dividing the profile calibration point according to preset height section.
Section profile acquiring unit is used to obtain by carrying out line to the profile calibration point contained by sustained height section
The profile that wind face is held on the height section.
In the embodiment of another exemplary, section profile extraction module 430 further includes endpoint side calibration point acquiring unit
With intermediate point acquiring unit.
Endpoint side calibration point acquiring unit for obtaining the upper side and lower side for being located at the height interval endpoint, and with
The immediate profile calibration point of height interval endpoint.
Intermediate point acquiring unit is used to for the intermediate point between the profile calibration point to be retrieved as described hold in wind facial contour
Corresponding height section is divided to corresponding to the profile calibration point of height interval endpoint, and by the profile calibration point.
In the embodiment of another exemplary, the wind load acquisition device of offshore structures further include coordinate obtaining module,
Sub- area calculation module and area and computing module.
Coordinate obtaining module is used to obtain contained profile calibration to the profile for holding wind face on different height section
The coordinate of point.
Sub- area calculation module is used to successively calculate the fixed point and its using one of profile calibration point as fixed point
The area of its two neighboring constituted triangle of profile calibration point.
Area and computing module are used to obtain the area of the triangle and the face for profile corresponding to the height section
Product.
In the embodiment of another exemplary, wind load computing module 470 includes wind direction coefficient acquiring unit and wind load
Acquiring unit.
The wind force coefficient and wind direction angle calculation that wind direction coefficient acquiring unit is used to be held according to difference in wind face on the whole
The wind direction coefficient of the born wind load of offshore structures, the wind direction coefficient include the offshore structures in the horizontal direction
On horizontal wind direction coefficient and vertical wind direction coefficient in vertical direction.
Wind load acquiring unit is used for the product by calculating the wind direction coefficient and wind speed square, obtains the marine knot
The wind load of structure object.
In the embodiment of another exemplary, wind direction coefficient acquiring unit includes that resultant force coefficient obtains subelement and sub- wind direction
Coefficient obtains subelement.
Resultant force coefficient obtains the wind force coefficient and wind direction angle that subelement is used to hold according to difference in wind face on the whole, meter
Calculate the resultant force coefficient of the born wind load of the offshore structures.
It is the water that sub- wind direction coefficient, which obtains subelement and is used to obtain the resultant force coefficient and the product of wind direction angle cosine,
Flat wind direction coefficient, and obtaining the resultant force coefficient with the product of wind direction angle sine is the vertical wind direction coefficient.
It should be noted that method provided by device provided by above-described embodiment and above-described embodiment belongs to same structure
Think, the concrete mode that wherein modules execute operation is described in detail in embodiment of the method, no longer superfluous herein
It states.
Another aspect based on the application, also offer a kind of electronic equipment comprising processor and memory, wherein deposit
It is stored with computer-readable instruction on reservoir, institute in the various embodiments described above is realized when which is executed by processor
The wind load acquisition methods of offshore structures are described.
Figure 12 is a kind of block diagram of electronics shown according to an exemplary embodiment.As shown in figure 12, computer equipment can
To include one or more following component: processing component 501, memory 502, power supply module 503, multimedia component 504, sound
Frequency component 505, sensor module 507 and communication component 508.
Wherein, said modules and it is not all necessary, computer equipment can increase other groups according to itself functional requirement
Part reduces certain components, and this embodiment is not limited.
Processing component 501 usually control computer equipment integrated operation, such as with display, Data communication operation and day
Associated operation of will data processing etc..Processing component 501 may include one or more processors 509 to execute instruction, with
Complete all or part of the steps of aforesaid operations.In addition, processing component 501 may include one or more modules, convenient for processing
Interaction between component 501 and other assemblies.For example, processing component 501 may include multi-media module, to facilitate multimedia group
Interaction between part 504 and processing component 501.
Memory 502 is configured as storing various types of data to support the operation in computer equipment.These data
Example include any application or method for operating on a computing device instruction.Memory 502 can be by appointing
The volatibility or non-volatile memory device or their combination of what type are realized.Also be stored in memory 502 one or
Multiple modules, which is configured to be executed by the one or more processors 509, to complete above-described embodiment
All or part of step in described method.
Power supply module 503 provides electric power for the various assemblies of computer equipment.Power supply module 503 may include power management
System, one or more power supplys and other with for computer equipment generate, manage, and distribute the associated component of electric power.
Multimedia component 504 includes the screen of one output interface of offer between the computer equipment and user.
In some embodiments, screen may include LCD (Liquid Crystal Display, liquid crystal display) and TP (Touch
Panel, touch panel).
Audio component 505 is configured as output and/or input audio signal.For example, audio component 505 includes a Mike
Wind, when computer equipment is in operation mode, when such as logging mode and speech recognition mode, microphone is configured as receiving external
Audio signal.The received audio signal can be further stored in memory 502 or send via communication component 508.?
In some embodiments, audio component 505 further includes a loudspeaker, is used for output audio signal.
Sensor module 507 includes one or more sensors, for providing the state of various aspects for computer equipment
Assessment.For example, sensor module 507 can detecte the state that opens/closes of computer equipment, the relative positioning of component is passed
The coordinate that sensor component 507 can also detect computer equipment or computer equipment one component changes and computer equipment
Temperature change.
Communication component 508 is configured to facilitate the communication of wired or wireless way between computer equipment and other equipment.
Computer equipment can access the wireless network based on communication standard, such as WiFi (WIreless-Fidelity, wireless network),
2G or 3G or their combination.
In the exemplary embodiment, computer equipment can be by one or more ASIC (Application Specific
Integrated Circuit, application specific integrated circuit), DSP (Digital Signal Processing, at digital signal
Manage device), PLD (Programmable Logic Device, programmable logic device), FPGA (Field-Programmable
Gate Array, field programmable gate array), controller, microcontroller, microprocessor or other electronic components realize.
Another aspect based on the application also provides a kind of computer readable storage medium, is stored thereon with computer journey
Sequence realizes the monitoring method of electronic lead sealing described in the various embodiments described above when the computer program is executed by processor.
Above content, only the preferable examples embodiment of the application, the embodiment for being not intended to limit the application, this
Field those of ordinary skill can very easily carry out corresponding flexible or repair according to the central scope and spirit of the application
Change, therefore the protection scope of the application should be subject to protection scope required by claims.
Claims (10)
1. a kind of wind load acquisition methods of offshore structures, which is characterized in that the described method includes:
By carrying out the different contours extracts held on wind face to offshore structures, the offshore structures is obtained in difference and holds wind face
On profile；
To the contours extract for holding wind facial contour and carrying out different height section more than sea level, wind face is held described in acquisition and is corresponded to not
With the profile in height section；
According to the area of profile corresponding to different height section, the corresponding form factor of the offshore structures and different height
The corresponding height coefficient in section holds the wind force coefficient of wind face on the whole described in calculating；
According to the wind load held wind force coefficient, wind direction angle and the wind speed of wind face on the whole and calculate the offshore structures
Lotus.
2. the method according to claim 1, wherein the wind face of holding of the offshore structures includes the marine knot
The frontal plane of projection of structure object and lateral projection face, it is described by carrying out the different contours extracts held on wind face to offshore structures, it obtains
The offshore structures holds the profile on wind face in difference
The corresponding wheel of the offshore structures is extracted from the orthographic projection view of the offshore structures and lateral projection's view respectively
Wide calibration point；
By carrying out line to the profile calibration point of extraction, orthographic projection profile and the lateral projection of the offshore structures are obtained
Profile.
3. the method according to claim 1, wherein the wind facial contour that holds to more than sea level carries out difference
The contours extract in height section holds the profile that wind face corresponds to different height section described in acquisition, comprising:
According to the drinking water of defined offshore structures, the profile calibration for being located at the drinking water or more in wind facial contour is held described in acquisition
Point, the drinking water correspond to the offshore structures in the height of b.s.l.；
The profile calibration point is divided according to preset height section；
By carrying out line to the profile calibration point contained by sustained height section, wind face is held in the height section described in acquisition
On profile.
4. according to the method described in claim 3, it is characterized in that, described by the profile contained by sustained height section
Calibration point carries out line, holds wind face before the profile on the height section described in acquisition, the method also includes:
Obtain and be located at the upper side and lower side of the height interval endpoint, and with the immediate profile of height interval endpoint
Calibration point；
Intermediate point between the profile calibration point is retrieved as the wheel held in wind facial contour corresponding to height interval endpoint
Wide calibration point, and the profile calibration point is divided to corresponding height section.
5. according to the method described in claim 4, it is characterized in that, in the face of the profile according to corresponding to different height section
The corresponding form factor of long-pending, described offshore structures and the corresponding height coefficient in different height section hold wind face described in calculating
Before wind force coefficient on the whole, the method also includes:
To the profile for holding wind face on different height section, the coordinate of contained profile calibration point is obtained；
Using one of profile calibration point as fixed point, the fixed point and other two neighboring profile calibration point institutes are successively calculated
Constitute the area of triangle；
Obtain the area of the triangle and the area for profile corresponding to the height section.
6. the method according to claim 1, wherein described hold the wind load system of wind face on the whole according to
Number, wind direction angle and wind speed calculate the wind load of the offshore structures, comprising:
According to difference hold wind face wind force coefficient on the whole and wind direction angle calculation described in the born wind load of offshore structures
The wind direction coefficient of lotus, the wind direction coefficient include the offshore structures horizontal wind direction coefficient in the horizontal direction and are hanging down
The upward vertical wind force coefficient of histogram；
By calculating the product of the wind direction coefficient and wind speed square, the wind load of the offshore structures is obtained.
7. according to the method described in claim 6, it is characterized in that, described hold the wind load system of wind face on the whole according to difference
The wind direction coefficient of the born wind load of offshore structures described in several and wind direction angle calculation, comprising:
Wind face wind force coefficient on the whole and wind direction angle are held according to difference, calculates the born wind load of the offshore structures
The resultant force coefficient of lotus；
The product for obtaining the resultant force coefficient and wind direction angle cosine is the horizontal wind direction coefficient, and obtains the force series
Number is the vertical wind direction coefficient with the product of wind direction angle sine.
8. a kind of wind load acquisition device of offshore structures, which is characterized in that described device includes:
Overall profile extraction module, for holding contours extracts on wind face by carrying out difference to offshore structures, described in acquisition
Offshore structures holds the profile on wind face in difference；
Section profile extraction module, for it is more than sea level hold wind facial contour carry out different height section contours extract,
The profile that wind face corresponds to different height section is held described in acquisition；
Wind force coefficient computing module, area, the offshore structures pair for the profile according to corresponding to different height section
Form factor and different height the section corresponding height coefficient answered hold the wind load system of wind face on the whole described in calculating
Number；
Wind load computing module is calculated for holding wind force coefficient, wind direction angle and the wind speed of wind face on the whole according to
The wind load of the offshore structures.
9. a kind of computer equipment characterized by comprising
Processor；And
Memory, for storing the executable instruction of the processor, the processor is configured to described executable via executing
Instruction carrys out perform claim and requires 1 to 7 described in any item methods.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
Claim 1 to 7 described in any item methods are realized when being executed by processor.
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