CN104443261A - Linear analysis, linear control method and linear analysis system for hull section end openings - Google Patents
Linear analysis, linear control method and linear analysis system for hull section end openings Download PDFInfo
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- CN104443261A CN104443261A CN201410677089.5A CN201410677089A CN104443261A CN 104443261 A CN104443261 A CN 104443261A CN 201410677089 A CN201410677089 A CN 201410677089A CN 104443261 A CN104443261 A CN 104443261A
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Abstract
The invention relates to a linear analysis method for hull section end openings. The linear analysis method includes the following steps that coordinate information of all measuring points on lines of the hull section end openings are collected; according to the coordinate information, all the measuring points are drawn on corresponding coordinate positions on an analysis interface; theoretical points corresponding to all the measuring points are determined on a design model of the analysis interface; the perpendicular distance values between all the measuring points in the analysis interface and the model planes where the corresponding theoretical points are located are calculated; the perpendicular distance values are displayed in a control mode, and meanwhile direction indication marks of perpendicular points from all the measuring points to the corresponding model planes are displayed in a control mode. The margins or compensation quantities of the end openings do not need to be considered, and even if the measuring points are directly collected on the edges of the end openings, correct deviation values and deviation directions can be obtained finally. No matter whether the collected measuring points belong to plate lines at positions without structure constraints or not, the correct deviation values and deviation directions can be obtained.
Description
Technical field
The present invention relates to ship building field, be specifically related to a kind of hull section port lines conformal analysis, control method and analysis system.
Background technology
In the design-build process of large-scale hull, all that first sectional construction carries out overall package again, therefore each section has section, wherein, the structure that the longitudinal curvature of hull changes greatly and outside plate place (such as bulbous bow), the port of its section often needs to place surplus (at least 30mm) or comparatively large compensation amount.And in order to monitor construction precision, the design mock-up also needing during construction first to gather in the port data of section and Computer Analysis interface is analyzed, and carries out Correction and Control according to the port case of current section relative to the gap of design mock-up.
The date comprision method that current shipbuilding industry uses, the data (comprising coordinate information) using the linear upper measurement point of three-dimensional measurement instrument collection terminal mouth, the data of measurement point and design mock-up are carried out virtual comparison, calculate each measurement point relative to the axial deviation of the three-dimensional coordinate of design mock-up, to carry out Correction and Control to port is linear.Due to when image data, measurement point is usually chosen at port edge place, the port often of final collection is with surplus or compared with the data in large compensation amount situation, and design mock-up is the theoretical value state without surplus without exception, this just causes actual acquired data and the not corresponding situation of design mock-up, the axial bias contribution of the three-dimensional coordinate drawn allows people clearly cannot judge the linear deviation situation of port (comprising departure and bias direction) for the moment, have to pass through a large amount of later stage artificial treatment to calculate and could determine, cause inefficiency.Simultaneously due to employing is that actual measurement point compares with the Point-to-Point Data of design mock-up mathematical point, therefore the sheet material in the face of needing to control non-structure constraint place (refers to it is only one block of independent sheet material, and the parts its structure not retrained) linear situation time, because there is no structure intersection point, so naked eyes cannot determine the accurate location of measurement point on assay surface, thus the linear deviation situation of port also clearly cannot be judged.
Summary of the invention
The technical problem to be solved in the present invention comprises two aspects, and one is that the axial deviation of three-dimensional coordinate that the existing comparative analysis method of solution draws can not intuitively indicate final bias contribution, needs later stage artificial reprocessing, the problem of inefficiency; Two is solve the problem that clearly cannot judge the linear deviation situation of port that the sheet material of non-structure constraint place is linear in existing comparative analysis method.
A kind of hull section port lines conformal analysis method that the present invention proposes, it comprises the following steps:
The coordinate information of linear each measurement point upper of acquisition vessel body section port;
According to described coordinate information, each measurement point is plotted on coordinate position corresponding on assay surface;
The design mock-up of described assay surface determines the mathematical point corresponding with each measurement point;
Calculate the vertical distance value to the model plane at corresponding mathematical point place of each measurement point in described assay surface;
Control the described vertical distance value of display, control the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously.
Further, the described step be plotted to by each measurement point on coordinate position corresponding on assay surface also comprises:
Export the numbering of each measurement point;
The design mock-up of described assay surface being determined, the step of the mathematical point corresponding with each measurement point also comprises:
Export the numbering of each mathematical point.
Concrete, described direction mark is specially arrow.
Concrete, the design mock-up of described assay surface is determined the step of the mathematical point corresponding with each measurement point comprises:
According to the selection instruction that user inputs on described assay surface, described design mock-up is determined the mathematical point that each measurement point is corresponding.
Simultaneously, the invention allows for a kind of hull section port linear control method, it is according to the vertical distance value controlling in arbitrary above-mentioned hull section port lines conformal analysis method to show and direction mark, along described direction mark indicated direction, carry out Correction and Control by described vertical distance value.
In addition, the invention allows for a kind of hull section port lines conformal analysis system, it comprises:
3 D measuring instrument: for the coordinate information of linear each measurement point upper of acquisition vessel body section port;
Draw display module: for according to described coordinate information, be plotted to by each measurement point on coordinate position corresponding on assay surface;
Mathematical point determination module: determine the mathematical point corresponding with each measurement point on the design mock-up at described assay surface;
Distance calculation module: for calculating the vertical distance value to the model plane at corresponding mathematical point place of each measurement point in described assay surface;
Described drafting display module also shows described vertical distance value for controlling, and controls the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously.
Further, described drafting display module is also for exporting the numbering of each measurement point; Described mathematical point determination module is also for exporting the numbering of each mathematical point.
Concrete, described 3 D measuring instrument is specially total powerstation.
Beneficial effect: a kind of hull section port lines conformal analysis method that the present invention proposes, it is by being plotted on the corresponding coordinate position of assay surface by each measurement point, and determine each mathematical point, then on computational analysis interface measurement point to the vertical distance value of the model plane at corresponding mathematical point place, and control the described vertical distance value of display, also control the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously, therefore user can find out the deviate of measurement point very intuitively according to the vertical distance value of display, and the bias direction of measurement point can be found out very intuitively according to direction mark, thus later stage artificial treatment is eliminated, improve efficiency, when carrying out Correction and Control, indicated direction can be identified along direction, carrying out Correction and Control by described vertical distance value.Therefore, the present invention does not need the problem considering port margin or compensation rate, even if directly gather on port edge when gathering measurement point, finally all can obtain correct departure and bias direction; And the measurement point that also no matter gathers of the present invention whether belong to the sheet material of non-structure constraint place linear on point, equally all can obtain correct departure and bias direction.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of hull section port lines conformal analysis embodiment of the method that the present invention proposes.
Fig. 2 is the schematic diagram be plotted to by each measurement point on assay surface related in Fig. 1 step S200.
Fig. 3 is the partial schematic diagram determining mathematical point on assay surface related in Fig. 1 step S300.
Fig. 4 is the partial schematic diagram of display vertical distance value and the direction mark related in Fig. 1 step S500.
Fig. 5 is the structured flowchart of a kind of hull section port lines conformal analysis system embodiment that the present invention proposes.
Detailed description of the invention
For the ease of it will be appreciated by those skilled in the art that the present invention is described further below in conjunction with accompanying drawing and embodiment.
Refer to Fig. 1, a kind of hull section port lines conformal analysis method that the present embodiment proposes, it comprises the following steps S100 to S500.
The coordinate information of linear each measurement point upper of S100, acquisition vessel body section port.
S200, according to described coordinate information, each actual spot of measurement to be plotted on assay surface on corresponding coordinate position.
S300, on the design mock-up of described assay surface, determine the mathematical point corresponding with each measurement point.
S400, calculate the vertical distance value to the model plane at corresponding mathematical point place of each measurement point in described assay surface.
S500, the described vertical distance value of control display, control the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously.
Total powerstation specifically can be adopted in step S100 to carry out the coordinate information of linear each measurement point upper of acquisition vessel body section port.
Step S200 refers to Fig. 2, and Fig. 2 can regard as the interface of a design analysis software, referred to as assay surface, the design mock-up of the section port of bulbous bow (embodiment is for bulbous bow) has been shown in this assay surface.The operating order that can input on described assay surface according to user in step S200, each actual spot of measurement to be plotted on this assay surface (except step S100, the measurement point that following steps are mentioned all refers to the actual spot of measurement that assay surface illustrates), and illustrate with " ten ", the center of " ten " represents a measurement point, owing to having surplus for bulbous bow section port in the present embodiment, therefore can see that the center of major part " ten " is that (design mock-up due to bulbous bow in Fig. 2 is only illustraton of model to off-design model, its size differs huge with the size of actual bulbous bow, thus with the naked eye seem to depart from seldom from Fig. 2, but calculate by actual ratio, part may deviation tens millimeters to tens millimeters).
The numbering of also each measurement point exportable in step S200, as shown in Figure 2, add digital mode with " " the inside in Fig. 2 and output the numbering of each measurement point to distinguish, one have 41 measurement points as seen from Figure 2, but the numbering of these measurement points might not need to arrange in order, only need to distinguish each measurement point.
Step S300 refers to Fig. 3, determines the mathematical point (in Fig. 3 mathematical point with solid stain illustrate) corresponding with each measurement point in Fig. 3 on the design mock-up of bulbous bow.
In like manner, the numbering of step S300 also each mathematical point exportable, the numeral not adding " " in Fig. 3 is the numbering of mathematical point, the numbering of these mathematical points equally not necessarily needs to arrange in order, base to can not corresponding with the numbering of corresponding measurement point (in such as Fig. 3 numeral number be the mathematical point corresponding to measurement point of 31 be numbered 9 instead of 31).
Step S300 specifically comprises: the selection instruction inputted on described assay surface according to user, and described design mock-up is determined the mathematical point that each measurement point is corresponding.In specific implementation, when determining the mathematical point of a measurement point, a point can be selected as mathematical point by the cursor of mouse place that this measurement point of distance is nearer on design mock-up by user, the position of mathematical point does not need identical with the position of measurement point, as long as only will greatly with the deviation of measurement point, this be completely controlled.Such as, in Fig. 3 when the selected mathematical point of user, the coordinate of this mathematical point and this mathematical point deviation to the measurement point of corresponding with it (recently) can be shown, such as hypothesis user is the mathematical point that measurement point 31 is selected is mathematical point 9, illustrate in Fig. 3 that the three-dimensional coordinate of mathematical point 9 is X=66703, Y=2111, Z=698, namely (66703, 2111, 698), (notice that there is a numeral " 9 " in the square frame lower right corner showing the D coordinates value of mathematical point 9 in Fig. 2, this numeral " 9 " is used for representing that this D coordinates value belongs to the D coordinates value of mathematical point 9, ) axial deviation of itself and measurement point 11 is (-34, 19,-4), can determine that one from the mathematical point close to measurement point completely according to the axial deviation demonstrated, to improve accuracy rate.
The vertical distance value to the model plane at corresponding mathematical point place of each measurement point in described assay surface is calculated in step S400, concrete, if each mathematical point optional all in one plane on design mock-up, so for a measurement point, no matter which position is mathematical point is selected in by user, from this measurement point to the plane at mathematical point place be namely all equal (reality also same plane).But because each mathematical point on design mock-up usually all can not be at grade, but on curved surface, and the curved surface on design mock-up is actually and is made up of many little model planes, therefore each mathematical point can find that model plane residing for oneself, therefore can calculate the vertical distance value of each measurement point to the model plane at corresponding mathematical point place in step S400.
Step S500 refers to Fig. 4, and in the diagram, for the vertical distance value of computation and measurement point 31 to the model plane at mathematical point 9 place, the vertical distance value calculated is XYZ=5, and this vertical distance value is presented near measurement point 31 and mathematical point 9.Also show the direction mark of the intersection point of the model plane residing for measurement point 31 to mathematical point 9 simultaneously, in Fig. 4, this direction sign is specially arrow, carrying out instruction with arrow is more a kind of scheme, such user can revise according to the direction of arrow when carrying out Correction and Control to port is linear, concrete correction is described vertical distance value (for vertical distance value for XYZ=5mm, namely revising 5mm in the direction of arrows).Also can further control in step S500 to show the function that vertical distance value projects to the projection value on each three-dimensional coordinate plane or 3-D walls and floor, and control direction mark (the such as XOY=12 of display projection value simultaneously, YOZ=8, the phraseologies such as DY=15), this function can be combined with practice of construction condition better.
A kind of hull section port lines conformal analysis method that the present embodiment proposes, it is by being plotted on the corresponding coordinate position of assay surface by each measurement point, and determine each mathematical point, then on computational analysis interface measurement point to the vertical distance value of the model plane at corresponding mathematical point place, and control the described vertical distance value of display, also control the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously, therefore user can find out the deviate of measurement point very intuitively according to the vertical distance value of display, and the bias direction of measurement point can be found out very intuitively according to direction mark, thus later stage artificial treatment is eliminated, improve efficiency, when carrying out Correction and Control, indicated direction can be identified along direction, carrying out Correction and Control by described vertical distance value.Therefore, the present embodiment does not need the problem considering port margin or compensation rate, even if directly gather on port edge when gathering measurement point, finally all can obtain correct departure and bias direction; And the measurement point that also no matter gathers of the present embodiment whether belong to the sheet material of non-structure constraint place linear on point, equally all can obtain correct departure and bias direction.
Simultaneously, the invention allows for a kind of hull section port linear control method embodiment, it identifies according to the vertical distance value controlling display in upper hull section port lines conformal analysis embodiment of the method and direction, along described direction mark indicated direction, carry out Correction and Control by described vertical distance value.No matter the hull section port linear control method of the present embodiment is when port has surplus or compensation rate, or when the measurement point gathered belong to the sheet material of non-structure constraint place linear on some all can realize relatively accurate Correction and Control.
In addition, the present invention is a kind of hull section of corresponding proposition port lines conformal analysis system embodiment also, and refer to Fig. 5, it comprises:
3 D measuring instrument 10: for the coordinate information of linear each measurement point upper of acquisition vessel body section port;
Draw display module 20: for according to described coordinate information, be plotted to by each measurement point on coordinate position corresponding on assay surface;
Mathematical point determination module 30: determine the mathematical point corresponding with each measurement point on the design mock-up at described assay surface;
Distance calculation module 40: for calculating the vertical distance value to the model plane at corresponding mathematical point place of each measurement point in described assay surface;
Draw display module 20 and also show described vertical distance value for controlling, control the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously.
Corresponding with step S100 to S500 in above-mentioned hull section port lines conformal analysis method in the present embodiment, therefore it possesses the beneficial effect in above-mentioned hull section port lines conformal analysis method achieved by step S100 to S500 equally.
In the present embodiment, described drafting display module 20 is also for exporting the numbering of each measurement point; Described mathematical point determination module 30 is also for exporting the numbering of each mathematical point.Described 3 D measuring instrument 10 is specially total powerstation, theodolite or spatial digitizer.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made, as the control and analysis of hull structure deviation, port length chi.These all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a hull section port lines conformal analysis method, is characterized in that, comprise the following steps:
The coordinate information of linear each measurement point upper of acquisition vessel body section port;
According to described coordinate information, each measurement point is plotted on coordinate position corresponding on assay surface;
The design mock-up of described assay surface determines the mathematical point corresponding with each measurement point;
Calculate the vertical distance value to the model plane at corresponding mathematical point place of each measurement point in described assay surface;
Control the described vertical distance value of display, control the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously.
2. hull section port lines conformal analysis method according to claim 1, is characterized in that, the described step be plotted to by each measurement point on coordinate position corresponding on assay surface also comprises:
Export the numbering of each measurement point;
The design mock-up of described assay surface being determined, the step of the mathematical point corresponding with each measurement point also comprises:
Export the numbering of each mathematical point.
3. hull section port lines conformal analysis method according to claim 1, is characterized in that, described direction mark is specially arrow.
4. hull section port lines conformal analysis method according to claim 1, is characterized in that, the design mock-up of described assay surface is determined the step of the mathematical point corresponding with each measurement point comprises:
According to the selection instruction that user inputs on described assay surface, described design mock-up is determined the mathematical point that each measurement point is corresponding.
5. a hull section port linear control method, it is characterized in that, vertical distance value and the direction mark of display is controlled in hull section port lines conformal analysis method according to any one of Claims 1-4, along described direction mark indicated direction, carry out Correction and Control by described vertical distance value.
6. a hull section port lines conformal analysis system, is characterized in that, comprising:
3 D measuring instrument: for the coordinate information of linear each measurement point upper of acquisition vessel body section port;
Draw display module: for according to described coordinate information, be plotted to by each measurement point on coordinate position corresponding on assay surface;
Mathematical point determination module: determine the mathematical point corresponding with each measurement point on the design mock-up at described assay surface;
Distance calculation module: for calculating the vertical distance value to the model plane at corresponding mathematical point place of each measurement point in described assay surface;
Described drafting display module also shows described vertical distance value for controlling, and controls the direction mark of the intersection point of the model plane of display from each measurement point to correspondence simultaneously.
7. hull section port lines conformal analysis system as claimed in claim 6, it is characterized in that, described drafting display module is also for exporting the numbering of each measurement point; Described mathematical point determination module is also for exporting the numbering of each mathematical point.
8. hull section port lines conformal analysis system as claimed in claim 7, it is characterized in that, described 3 D measuring instrument is specially total powerstation.
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