CN103279599A - Product modeling method based on interactive feature pair - Google Patents
Product modeling method based on interactive feature pair Download PDFInfo
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- CN103279599A CN103279599A CN2013101802734A CN201310180273A CN103279599A CN 103279599 A CN103279599 A CN 103279599A CN 2013101802734 A CN2013101802734 A CN 2013101802734A CN 201310180273 A CN201310180273 A CN 201310180273A CN 103279599 A CN103279599 A CN 103279599A
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Abstract
The invention provides a product modeling method based on an interactive feature pair. The method includes the steps of firstly, conducting product part modeling, and enabling the interactive feature pair to be embedded in a part model on the basis of interactive interfaces among product parts, then, achieving assembly modeling through feature elements of the fully specified interactive feature pair on the basis of the part model where the interactive feature pair is embedded. The product modeling method based on the interactive feature pair has the advantages that the interactive feature pair is divided into six types of highly abstracted basic classifications, in the assembly modeling method from top to bottom, ports are set up through the interactive feature pair so that enough abstraction and generality can be ensured, consistency of constraints analysis for designers can be ensured when the interactive feature pair is embedded in the part model in comparison with a traditional assembly modeling method from bottom to top, and the interactive feature pair can be used for geometric reasoning in a downstream technology design process. Through the product modeling method based on the interactive feature pair, the advantages of the assembly modeling technology from top to bottom and the advantages of the assembly modeling technology from bottom to top can be combined, and therefore product assembly modeling can be better conducted.
Description
Technical field
The invention belongs to field of computer aided design, specifically is a kind of Product Modeling Method based on the interaction feature idol.
Background technology
The assembling modeling is the key link in the modern product development process, and the quality of modeling quality, the height of efficient directly have influence on the quality of product final mass and the length of delivery time.The assembling modeling generally realizes by the restriction relation of setting up on the basis of part modeling between the part.Current, this modeling pattern is the main stream approach of assembling modeling, but this mode is different with the top-down mode of thinking of designer, is a kind of bottom-up modeling method,, the number of parts that comprise comparatively complicated when product needs the restriction relation huge amount of setting up more for a long time in modeling process.In addition, because constraint is to adopt Engineering Semantics to realize in conjunction with geometric parameter, therefore the different defined constraints of designer has randomness, cause the semantic parsing in the product development downstream stages of constraint to run into difficulty, different designers is difficult to understand connected mode between the part fully by restriction relation.Document Assembly Features in Modelling and Planning (van Holland W., 1997, Technische Universiteit Delft) this is improved, propose to adopt connection features (connection feature) package constraint relation.But these class methods are to record the end-state of assembling activity from the angle of Constraints Management more, do not have directly to realize explication from geometrical layers in the face of the characteristic element that part cooperates, and are difficult to the product assembling process is effectively guided and analyzes.
Another main flow mode is the top-down modeling work of carrying out in the assembling modeling.Document Multi-level assembly model for top-down design of mechanical products (Chen X., Gao S., Yang Y., and Zhang S., 2012, Computer-Aided Design 44:1033-1048) proposes, the designer is the layout structure of deisgn product model at first, defines the interface between each sub-assemblies, the part again; Based on this layout structure, progressively set up the detailed model of each part.This pattern meets designer's thinking characteristic, but require the designer just systematically to understand product structure in the Product Conceptual Design stage, and the layout structure of its definition and interface all depend critically upon the concrete assembling model that will set up, thereby assembling modeling difficulty is big, to designer's technical requirement height, and be difficult to set up general approach at dissimilar products.
Can find that by analyzing above-mentioned dual mode passes through all to consider that the mutual relationship between the part realizes the assembling modeling: bottom-up mode mainly realizes by constraint or the connection features of setting up between the part; Top-down mode mainly realizes by the interface between the definition part.But dual mode has its intrinsic deficiency: bottom-up mode is described mutual relationship (assembly constraint or connection features) between part and is difficult to the consistance that realizes that the designer resolves, the mutual relationship (interface in the layout structure) that top-down system is described between part depends critically upon the specific product model that will set up, is difficult to produce general method.
Summary of the invention
The technical matters that solves
Statement or the Engineering Semantics of being lack of consistency when describing the part mutual relationship at existing assembling modeling method resolved variation or depended critically upon the deficiency of the specific product model that will set up, the present invention proposes a kind of Product Modeling Method based on the interaction feature idol, in order to implement the assembling modeling better.
Technical scheme
In the assembling modeling, realize assembling by interacting activity (one group of part forms the dynamic process of assembly) between the parts, it is according to the mutual relationship that is the interaction feature that comprises of interactive interface on the part model (mating area between the part), as alignment, applying and coaxial etc.So-called interaction feature refers in part reciprocal process, participates in mutual on the model and has the shape area of engineering significance.Interaction feature that relate to, that belong to two parts has constituted the interaction feature idol when mutual.When connecting as bolts and nuts, the external thread feature that belongs to bolt namely is an interaction feature idol with the internal thread feature that belongs to nut.The assembling modeling is exactly the process that realizes cooperation according to the interaction feature between part.If the interaction feature idol is carried out independent modeling, both can be used as the constraint in the bottom-up modeling pattern, also can be used as layout structure or interface in the top-down modeling pattern, be a kind of assembling modeling method that can realize the consistance statement.
Wherein, the interaction feature idol has six kinds of basic topological forms:
● some point interaction feature idol (IFP-VV) is made of the pairing of the unique point in two part model interactive interfaces;
● dotted line interaction feature idol (IFP-VE) is made of the pairing of the characteristic curve in the unique point in the part model interactive interface and another part model interactive interface;
● the mutual feature idol of some hand-deliver (IFP-VF) is made of the pairing of the characteristic face in the unique point in the part model interactive interface and another part model interactive interface;
● line line interaction feature idol (IFP-EE) is made of the pairing of the characteristic curve in two part model interactive interfaces;
● the line mutual feature idol (IFP-EF) of delivering personally is made of the pairing of the characteristic face in the characteristic curve in the part model interactive interface and another part model interactive interface;
● the face mutual feature idol (IFP-FF) of delivering personally is made of the pairing of the characteristic face in two part model interactive interfaces;
In above-mentioned six kinds of forms, the interaction feature that relates to is three types of unique point, characteristic curve and characteristic faces, wherein:
● unique point, topological form are topological point (vertex), and geometric format is corresponding to the face central point in the part model interactive interface, the end points on limit and mid point etc. in the face;
● characteristic curve, topological form are topological line (edge), and geometric format is corresponding to limit and the normal of face in the part model interactive interface, the axis on the face of cylinder etc.;
● characteristic face, topological form are manifold (face), and geometric format is corresponding to various in the part model interactive interface.
Described Product Modeling Method based on the interaction feature idol is characterized in that: adopt following steps:
Step 1: carry out the product parts modeling, and based on the interactive interface between product parts, in part model, embed the interaction feature idol:
Step 1.1: the part model set P={p that need to determine foundation
1, p
2..., p
n, wherein n represents the quantity of part model;
Step 1.2: select part model p
i∈ P, (i=1 ..., n), adopt the CAD modeling tool to set up part model p
i
Step 1.3: determine part model p
iWith part model p
j∈ P, (j=1 ..., n, the interactive interface of j ≠ i) if there is not interactive interface, then enters step 1.5, otherwise enters step 1.4;
Step 1.4: determine part model p in the interactive interface
iThe interaction feature collection F={f that comprises
1, f
2..., f
m, wherein m represents the quantity of interaction feature;
Step 1.4.1: get k=1;
Step 1.4.2: according to interaction feature f
kWith part p
jThe topological structure form of the interaction feature of middle correspondence is selected corresponding interaction feature idol model;
Step 1.4.3: give the scale-of-two global identifier for the interaction feature idol model of selecting among the step 1.4.2, make this scale-of-two global identifier and follow-up embedding part p
jIn the scale-of-two global identifier of corresponding interaction feature idol identical, but do not repeat with the scale-of-two global identifier of other interaction feature idol;
Step 1.4.4: with in the interaction feature selected among the step 1.4.2 idol with interaction feature f
kA corresponding characteristic element is appointed as part model p
iInteraction feature f
k
Step 1.4.5: get k=k+1, if k≤m returns step 1.4.2 and continues to embed the interaction feature idol, otherwise enters step 1.5;
Step 1.5: if j≤n then gets j=j+1, and returns step 1.3;
Step 1.6: repeating step 1.2～step 1.5, set up all part models and embed the interaction feature idol therein;
Step 2: to embed the part model of interaction feature idol, assemble modeling:
Step 2.1: adopt with step 1.2 in identical modeling tool, in the trim designs module of modeling tool, load the part model that needs assembling and gather Q={q
1, q
2..., q
s, wherein s is the quantity of the part model of loading;
Step 2.2: determine that the interaction feature idol that embeds among the part model set Q collects FQ={fq
1, fq
2..., fq
t, wherein t is the quantity of interaction feature idol;
Step 2.3: get i=1;
Step 2.4: from interaction feature idol collection FQ, select interaction feature idol fq
i, according to fq
iScale-of-two global identifier identification interaction feature idol fq
iTwo related part model q
kAnd q
j, k wherein, j ∈ 1 ..., s}, and k ≠ j;
Step 2.5: with part model q
kThe interaction feature idol fq that embeds
iIn unappropriated characteristic element be appointed as part model q
jThe interaction feature idol fq that embeds
iIn appointed characteristic element, simultaneously to part q
jThe middle interaction feature idol fq that embeds
iIn unappropriated characteristic element be appointed as part model q
kThe interaction feature idol fq that embeds
iIn appointed characteristic element, and realize one based on interaction feature idol fp by the relation between two characteristic elements of specifying
iPart assembling;
Step 2.6: get i=i+1, return step 2.4, the part assembling of all interaction feature idols in finishing based on interaction feature idol collection FQ.
Beneficial effect
Interaction feature idol among the present invention is divided into six kinds of highly abstract fundamental types, in top-down assembling modeling pattern, sets up interface with the interaction feature idol and can guarantee enough abstractnesss and generality; Compare with the bottom-up assembling modeling method of tradition, in part model, embed the consistance that interaction feature can guarantee that by chance the designer resolves constraint, and can be used for the geometric reasoning of downstream process design process.Therefore, by the present invention, comprehensively the advantage of top-down and bottom-up two kinds of assembling modeling techniques is assembled modeling thereby implement product better.
Description of drawings
Fig. 1 is the building-block of logic of key step of the present invention;
Fig. 2 is the type synoptic diagram of basic interaction feature idol;
Fig. 3 is based on the part modeling process flow diagram of interaction feature idol;
Fig. 4 is based on the assembling modeling process flow diagram of interaction feature idol;
Fig. 5 is the structural drawing of platform and addendum cone in the embodiment one;
Fig. 6 is the wiring layout of platform and addendum cone in the embodiment one;
Fig. 7 is interaction feature synoptic diagram on a rare occasion;
Fig. 8 is the synoptic diagram of interaction feature idol two;
Fig. 9 is the synoptic diagram of interaction feature idol three;
Figure 10 is the structural drawing of embodiment two middle plateforms peace nose cone;
Figure 11 is the wiring layout of embodiment two middle plateforms peace nose cone;
Figure 12 is the synoptic diagram of interaction feature idol four;
Figure 13 is the synoptic diagram of interaction feature idol five;
Figure 14 is the structural drawing of perforated plate and nail in the embodiment three;
Figure 15 is the wiring layout of perforated plate and nail in the embodiment three;
Figure 16 is the synoptic diagram of interaction feature idol six;
Figure 17 is the synoptic diagram of interaction feature idol seven.
Wherein:
1. platform 2. addendum cones 3. platform features are put 4. platform features faces
5. platform features line 6. addendum cone unique points one 7. addendum cone characteristic curves 8. addendum cone unique points two
9. platform-addendum cone assembles on a rare occasion 11. unique points, one 12. unique points two of 10. interaction features
13. interaction feature idol 2 14. characteristic faces one 15. characteristic curves one 16. interaction features idol three
17. characteristic curve 2 18. unique points 3 19. dull and stereotyped 20. tack awls
21. lithographic features face 22. tack awl unique point 23. tack awl characteristic curve 24. plates-awl assembling
25. interaction feature idol 4 26. characteristic faces 2 27. unique points 4 28. interaction features idol five
29. characteristic face 3 30. characteristic curves 3 31. perforated plates 32. nails
33. perforated plate characteristic curve 34. perforated plate characteristic faces 35. nail characteristic curves 36. nail characteristic faces
37. plate-bind and join 38. interaction features idol, 6 39. characteristic curves, 4 40. characteristic curves five
41. interaction feature idol 7 42. characteristic faces 4 43. characteristic faces five
Embodiment
Below in conjunction with specific embodiment the present invention is described:
Embodiment 1:
This embodiment is for setting up the assembling model platform-addendum cone 9 of platform 1 and addendum cone 2 based on the interaction feature idol.
Setting up part model platform 1 and addendum cone 2, and it is as follows to embed the concrete steps of interaction feature idol therein:
Step 1.1: need to determine the part model set P={ platform 1 of foundation, addendum cone 2}, number of parts n=2;
Step 1.2: select part model p
1=platform 1 adopts the CATIA modeling tool to set up the part model p of platform 1
1
Step 1.3: determine part model p
1=platform 1 and part p
2The interactive interface of=addendum cone 2 if there is not interactive interface, then enters step 1.5, otherwise enters step 1.4;
Step 1.4: determine part model p in the interactive interface
1The interaction feature collection F={ platform features point 3 that=platform 1 comprises, platform features face 4, platform features line 5}, wherein interaction feature number m=3;
Step 1.4.1: make interaction feature f
1=platform features point 3;
Step 1.4.2: according to the topological structure form of interaction feature corresponding in interaction feature and the part, select corresponding interaction feature idol model, for example, if f
kBe the outside surface of axle, part p
jIn corresponding interaction feature be the inside surface in hole, outside surface and inside surface all are manifold (face), then the selection face mutual feature idol IFP-FF that delivers personally;
In the present embodiment according to interaction feature f
1=platform features point 3 and part model p
2The topological structure form of corresponding addendum cone unique point 1 in the=addendum cone 2, selected element point interaction feature on a rare occasion 10;
Step 1.4.3: give 128 scale-of-two global identifiers for the interaction feature idol model of selecting among the step 1.4.2, make this scale-of-two global identifier and follow-up embedding part p
jIn the scale-of-two global identifier of corresponding interaction feature idol identical, but do not repeat with the scale-of-two global identifier of other interaction feature idol;
In the present embodiment for interaction feature on a rare occasion 10 models give 128 scale-of-two global identifier, namely ID(is because 128 bit identifiers are long, this embodiment replaces with " IFP-VV-1 " at this), make itself and follow-up embedding part p
2The ID of the corresponding interaction feature idol the in=addendum cone 2 is identical, but guarantees not to repeat with the ID of other interaction feature idol;
Step 1.4.4: with in the interaction feature selected among the step 1.4.2 idol with interaction feature f
kA corresponding characteristic element is appointed as part model p
iInteraction feature f
kFor example, if f
kBe the outside surface of axle, then corresponding characteristic element in the interaction feature idol of selecting be appointed as the outside surface of axle; A unappropriated characteristic element remains unchanged in the feature idol, waits in follow-up assembling modeling and further specifying;
In the present embodiment with interaction feature on a rare occasion the unique point 1 in 10 be appointed as part p
1The interaction feature f of=platform 1
1=platform features point 3; Interaction feature on a rare occasion in 10 unappropriated unique point 2 12 remain unchanged, wait in follow-up assembling modeling and further specifying;
Step 1.4.5: select interaction feature f
2=platform features face 4, f
3=platform features line 5 is according to interaction feature f
2=platform features face 4, f
3=platform features line 5 and part p
2The interaction feature line 7 of correspondence in the=addendum cone 2, the topological structure form of interaction feature point 8 is at part p
1Embed corresponding line deliver personally mutual feature idol 2 13 and dotted line interaction feature idol 3 16 in=the platform 1, and 1.4.3 gives identifier set by step, present embodiment replaces it respectively with " IFP-EF-1 " and " IFP-VE-1 ", 1.4.4 is appointed as p with the characteristic face 1 in the interaction feature idol 2 13 set by step
1The interaction feature f of=platform 1
2=platform features face 4 is appointed as p with the characteristic curve 2 17 in the interaction feature idol 3 16
1The interaction feature f of=platform 1
3=platform features line 5;
Step 1.5: repeating step 1.2～step 1.4, to part p
2=addendum cone 2, repeating step 1.2-step 1.4 is set up part p
2The model of=addendum cone 2, embed interaction feature on a rare occasion 10, interaction feature idol 2 13 and interaction feature idol 3 16, and being designated IFP-VV-1 respectively, IFP-EF-1 and IFP-VE-1 are appointed as p respectively with unique point 2 12, characteristic curve 1 and unique point 3 18 in three interaction feature idols afterwards
2The addendum cone unique point 1 of=addendum cone 2, addendum cone characteristic curve 7 and addendum cone unique point 28, thus part modeling finished.
In general, it at first is on the basis of determining the part interaction feature that the feature idol embeds, and selects the particular type of interaction feature idol, then the type of a characteristic element in the further specific characteristic idol.The feature idol embeds only that a characteristic element is directly related with the part interaction feature, and another characteristic element need be specified in follow-up assembling modeling.Because the part interactive interface is well-determined in the assembling of actual product, so one group of (at least one) feature of interactive interface correspondence by chance can be unique decides.
Next assemble modeling, the assembling modeling is on the part model basis that has embedded the interaction feature idol, realizes usually that by the characteristic element of specifying the interaction feature idol fully its basic step is as follows:
Step 2.1: select and the CATIA modeling tool, in the trim designs module of modeling tool, load the part model set Q={ platform 1 that needs assembling, addendum cone 2}, wherein the quantity s=2 of the part model of Jia Zaiing;
Step 2.2: determine the interaction feature idol collection FQ={ interaction feature that embeds among the part model set Q on a rare occasion 10, interaction feature idol 2 13, interaction feature idol three 16}, wherein the quantity t=3 of interaction feature idol;
Step 2.3: from interaction feature idol collection FQ, select interaction feature idol fq
1=interaction feature on a rare occasion 10 is according to fq
1Two part model q of its association of scale-of-two global identifier identification id (IFP-VV-1)
1=platform 1 and q
2=addendum cone 2;
Step 2.4: with part model q
kThe interaction feature idol fq that embeds
iIn unappropriated characteristic element be appointed as part model q
jThe interaction feature idol fq that embeds
iIn appointed characteristic element (exchange of specific characteristic element), simultaneously to part q
jThe middle interaction feature idol fq that embeds
iIn unappropriated characteristic element be appointed as part model q
kThe interaction feature idol fq that embeds
iIn appointed characteristic element, and realize one based on interaction feature idol fp by the relation between two characteristic elements of specifying
iPart assembling; For example, if part model q
kAnd q
jComprise axle and hole characteristic respectively and need carry out the hole axle and cooperate q
kAnd q
jIn embedded the mutual feature idol IFP-FF that delivers personally of the face with identical ID respectively, IFP-FF embeds q
kShi Zhiding one of them characteristic element be the axle outside surface, IFP-FF embeds q
jShi Zhiding one of them characteristic element be the inside surface in hole; At this moment, by the exchange of specific characteristic element, can q will be embedded
kAnd q
jIn feature idol IFP-FF in two characteristic elements all specify fully, namely form the feature idol of actual " inside surface-outside surface ", by specifying inside surface and appearance relation of plane can finish assembling based on this feature idol for " coaxial ", at this moment, interaction feature idol fp
iBe labeled as " having finished assembling ";
In the present embodiment with part q
1The interaction feature that=platform 1 embeds on a rare occasion in 10 unappropriated unique point 2 12 be appointed as part q
2On a rare occasion appointed unique point 2 12(specific characteristic points exchange in 10 of the interaction feature that=addendum cone 2 embeds), simultaneously, to part q
2The interaction feature that embeds in=the addendum cone 2 on a rare occasion 10 also carries out the specific characteristic element and exchanges, by specific characteristic put 1 and the pass of unique point 2 12 be " coincidences " can realize one based on interaction feature on a rare occasion 10 part assemble i.e. q
1Platform features point 3 and q on=the platform 1
2Addendum cone unique point 1 on the=addendum cone 2 overlaps, and forms actual " point-point " interaction feature idol, and at this moment, interaction feature on a rare occasion 10 is labeled as " having finished assembling ";
Step 2.5: repeating step 2.3-step 2.4 is marked as " having finished assembling " until interaction feature idol 2 13 and interaction feature idol 3 16.
Embodiment 2:
This embodiment is assembling model plate-awl 24 of setting up flat board 19 and tack awl 20 based on the interaction feature idol.
Setting up the dull and stereotyped 19 peaceful nose cones 20 of part model, and it is as follows to embed the concrete steps of interaction feature idol therein:
Step 1.1: need to determine the part model set P={ flat board 19 of foundation, tack awl 20}, number of parts n=2;
Step 1.2: select part model p
1=flat board 19 adopts the CATIA modeling tool to set up dull and stereotyped 19 part model p
1
Step 1.3: determine part model p
1=flat board 19 and part p
2The interactive interface of=tack awl 20 if there is not interactive interface, then enters step 1.5, otherwise enters step 1.4;
Step 1.4: determine part model p in the interactive interface
1=dull and stereotyped 19 interaction feature collection F={ lithographic features face the 21} that comprises, wherein interaction feature number m=1;
Step 1.4.1: make interaction feature f
1=lithographic features face 21;
Step 1.4.2: according to interaction feature f
1=lithographic features face 21 and part model p
2The topological structure form of corresponding tack awl unique point 22 in the=tack awl 20, the selected element mutual feature idol 4 25 of delivering personally;
Step 1.4.3: for interaction feature idol 4 25 models are given 128 scale-of-two global identifier, namely ID(is because 128 bit identifiers are long, and this embodiment replaces with " IFP-VF-1 " at this), make itself and follow-up embedding part p
2The ID of the corresponding interaction feature idol the in=tack awl 20 is identical, but guarantees not to repeat with the ID of other interaction feature idol;
Step 1.4.4: the characteristic face 2 26 in the interaction feature idol 4 25 is appointed as part p
1=dull and stereotyped 19 interaction feature f
1=lithographic features face 21; Unappropriated unique point 4 27 remains unchanged in the interaction feature idol 4 25, waits in follow-up assembling modeling and further specifying;
Step 1.4.5: select interaction feature f
2=lithographic features face 21 is according to interaction feature f
2=lithographic features face 21 and part p
2The topological structure form of corresponding tack awl characteristic curve 23 in the=tack awl 20 is at part p
1Embed the corresponding line mutual feature idol 5 28 of delivering personally in=dull and stereotyped 19, and 1.4.3 gives identifier set by step, with " IFP-EF-2 ", 1.4.4 is appointed as p with the feature idol face 3 29 in the interaction feature idol 5 28 to this embodiment set by step with it
1=dull and stereotyped 19 interaction feature f
2=lithographic features face 21;
Step 1.5: repeating step 1.2～step 1.4, to part p
2=tack awl 20, repeating step 1.2-step 1.4 is set up part p
2The model of=tack awl 20 embeds interaction feature idol 4 25 and interaction feature idol 5 28, and is designated IFP-VF-1 and IFP-EF-2 respectively, afterwards unique point 4 27 and characteristic curve 3 30 in two interaction feature idols is appointed as p respectively
2The tack awl unique point 22 peaceful nose cone characteristic curves 23 of=tack awl 20, thus part modeling finished.
Next assemble modeling, the assembling modeling is on the part model basis that has embedded the interaction feature idol, realizes usually that by the characteristic element of specifying the interaction feature idol fully its basic step is as follows:
Step 2.1: select and the CATIA modeling tool, in the trim designs module of modeling tool, load the part model set Q={ flat board 19 that needs assembling, tack awl 20}, wherein the quantity s=2 of the part model of Jia Zaiing;
Step 2.2: determine that the interaction feature idol that embeds among the part model set Q collects FQ={ interaction feature idol 4 25, interaction feature idol five 28}, wherein the quantity t=2 of interaction feature idol;
Step 2.3: from interaction feature idol collection FQ, select interaction feature idol 4 25, according to its ID(IFP-VF-1) identifies two part model q of its association
1=flat board 19 and q
2=tack awl 20;
Step 2.4: with part q
1Unappropriated unique point 4 27 is appointed as part q in=dull and stereotyped 19 interaction feature idols 4 25 that embed
2Appointed unique point 4 27(specific characteristic points exchange in the interaction feature idol 4 25 that=tack awl 20 embeds), simultaneously, to part q
2The interaction feature idol 4 25 that embeds in=tack the awl 20 is also carried out the specific characteristic element and is exchanged, and the pass by specific characteristic face 2 26 and unique point 4 27 is that " coincidences " can realize that a part based on interaction feature idol 4 25 assembles, i.e. q
1Lithographic features face 21 and q on=dull and stereotyped 19
2Tack awl unique point 22 on the=tack awl 20 overlaps, and forms actual " point-face " interaction feature idol, and at this moment, interaction feature idol 4 25 is labeled as " having finished assembling ";
Step 2.5: repeating step 2.3-step 2.4 is marked as " having finished assembling " until interaction feature idol 5 28.
Embodiment 3:
This embodiment is for setting up perforated plate 31 and assembling model plate-nail 37 of following closely 32 based on the interaction feature idol.
Setting up part model perforated plate 31 and nail 32, and it is as follows to embed the concrete steps of interaction feature idol therein:
Step 1.1: need to determine the part model set P={ perforated plate 31 of foundation, nail 32}, number of parts n=2;
Step 1.2: select part model p
1=perforated plate 31 adopts the CATIA modeling tool to set up the part model p of perforated plate 31
1
Step 1.3: determine part model p
1=perforated plate 31 and part p
2The interactive interface of=nail 32 if there is not interactive interface, then enters step 1.5, otherwise enters step 1.4;
Step 1.4: determine part model p in the interactive interface
1The interaction feature collection F={ band plate hole characteristic line 33 that=perforated plate 31 comprises, band plate hole characteristic face 34}, wherein interaction feature number m=2;
Step 1.4.1: make interaction feature f
1=band plate hole characteristic line 33;
Step 1.4.2: according to interaction feature f
1=band plate hole characteristic line 33 and part model p
2The topological structure form of corresponding nail characteristic curve 35 in the=nail 32 is selected line line interaction feature idol 6 38;
Step 1.4.3: for interaction feature idol 6 38 models are given 128 scale-of-two global identifier, namely ID(is because 128 bit identifiers are long, and this embodiment replaces with " IFP-EE-1 " at this), make itself and follow-up embedding part p
2The ID of the corresponding interaction feature idol of=nail in 32 is identical, but guarantees not to repeat with the ID of other interaction feature idol;
Step 1.4.4: the characteristic curve 4 39 in the interaction feature idol 6 38 is appointed as part p
1The interaction feature f of=perforated plate 31
1=band plate hole characteristic line 33; Unappropriated characteristic curve 5 40 remains unchanged in the interaction feature idol 6 38, waits in follow-up assembling modeling and further specifying;
Step 1.4.5: select interaction feature f
2=band plate hole characteristic face 34 is according to interaction feature f
2=band plate hole characteristic face 34 and part p
2The topological structure form of corresponding nail characteristic face 36 in the=nail 32 is at part p
1Embed the corresponding face mutual feature idol 7 41 of delivering personally in=the perforated plate 31, and 1.4.3 gives identifier set by step, this embodiment replaces it respectively with " IFP-FF-1 ", and 1.4.4 is appointed as p with the characteristic face 4 42 in the interaction feature idol 7 41 set by step
1The interaction feature f of=perforated plate 31
2=band plate hole characteristic face 34;
Step 1.5: repeating step 1.2～step 1.4, to part p
2=nail 32, repeating step 1.2-step 1.4 is set up part p
2The model of=nail 32 embeds interaction feature idol 6 38 and interaction feature idol 7 41, and is designated IFP-EE-1 and IFP-FF-1 respectively, afterwards characteristic curve 5 40 and characteristic face 5 43 in two interaction feature idols is appointed as p respectively
2The nail characteristic curve 35 of=nail 32 and nail characteristic face 36, thus part modeling finished.
Next assemble modeling, the assembling modeling is on the part model basis that has embedded the interaction feature idol, realizes usually that by the characteristic element of specifying the interaction feature idol fully its basic step is as follows:
Step 2.1: select and the CATIA modeling tool, in the trim designs module of modeling tool, load the part model set Q={ perforated plate 31 that needs assembling, nail 32}, wherein the quantity s=2 of the part model of Jia Zaiing;
Step 2.2: determine that the interaction feature idol that embeds among the part model set Q collects FQ={ interaction feature idol 6 38, interaction feature idol seven 41}, wherein the quantity t=2 of interaction feature idol;
Step 2.3: from interaction feature idol collection FQ, select interaction feature idol 6 38, according to its ID(IFP-EE-1) identifies two part model q of its association
1=perforated plate 31 and q
2=nail 32;
Step 2.4: with part q
1Unappropriated characteristic curve 5 40 is appointed as part q in the interaction feature idol 6 38 that=perforated plate 31 embeds
2Appointed characteristic curve 5 40(specific characteristic points exchange in the interaction feature idol 6 38 that=nail 32 embeds), simultaneously, to part q
2The interaction feature idol 6 38 that embeds in=the nail 32 is also carried out the specific characteristic element and is exchanged, and the pass by specific characteristic line 5 39 and characteristic curve 5 40 is that " coincidences " can realize that a part based on interaction feature idol 6 38 assembles, i.e. q
1Perforated plate characteristic curve 33 and q on=the perforated plate 31
2Nail characteristic curve 35 on the=nail 32 overlaps, and forms actual " line-line " interaction feature idol, and at this moment, interaction feature idol 6 38 is labeled as " having finished assembling ";
Step 2.5: repeating step 2.3-step 2.4 is marked as " having finished assembling " until interaction feature idol 7 41.
Interaction feature idol among the present invention is characterized by six kinds of highly abstract essential characteristic idols, in top-down assembling modeling pattern, sets up interface with the interaction feature idol and can guarantee enough abstractnesss and generality; Compare with the bottom-up assembling modeling method of tradition, in part model, embed the consistance that interaction feature can guarantee that by chance the designer resolves constraint, and can be used for the geometric reasoning of downstream process design process.Therefore, by the present invention, comprehensively the advantage of top-down and bottom-up two kinds of assembling modeling techniques is assembled modeling thereby implement product better.
Claims (1)
1. Product Modeling Method based on the interaction feature idol is characterized in that: adopt following steps:
Step 1: carry out the product parts modeling, and based on the interactive interface between product parts, in part model, embed the interaction feature idol:
Step 1.1: the part model set P={p that need to determine foundation
1, p
2..., p
n, wherein n represents the quantity of part model;
Step 1.2: select part model p
i∈ P, (i=1 ..., n), adopt the CAD modeling tool to set up part model p
i
Step 1.3: determine part model p
iWith part model p
j∈ P, (j=1 ..., n, the interactive interface of j ≠ i) if there is not interactive interface, then enters step 1.5, otherwise enters step 1.4;
Step 1.4: determine part model p in the interactive interface
iThe interaction feature collection F={f that comprises
1, f
2..., f
m, wherein m represents the quantity of interaction feature;
Step 1.4.1: get k=1;
Step 1.4.2: according to interaction feature f
kWith part p
jThe topological structure form of the interaction feature of middle correspondence is selected corresponding interaction feature idol model;
Step 1.4.3: give the scale-of-two global identifier for the interaction feature idol model of selecting among the step 1.4.2, make this scale-of-two global identifier and follow-up embedding part p
jIn the scale-of-two global identifier of corresponding interaction feature idol identical, but do not repeat with the scale-of-two global identifier of other interaction feature idol;
Step 1.4.4: with in the interaction feature selected among the step 1.4.2 idol with interaction feature f
kA corresponding characteristic element is appointed as part model p
iInteraction feature f
k
Step 1.4.5: get k=k+1, if k≤m returns step 1.4.2 and continues to embed the interaction feature idol, otherwise enters step 1.5;
Step 1.5: if j≤n then gets j=j+1, and returns step 1.3;
Step 1.6: repeating step 1.2～step 1.5, set up all part models and embed the interaction feature idol therein;
Step 2: to embed the part model of interaction feature idol, assemble modeling:
Step 2.1: adopt with step 1.2 in identical modeling tool, in the trim designs module of modeling tool, load the part model that needs assembling and gather Q={q
1, q
2..., q
s, wherein s is the quantity of the part model of loading;
Step 2.2: determine that the interaction feature idol that embeds among the part model set Q collects FQ={fq
1, fq
2..., fq
t, wherein t is the quantity of interaction feature idol;
Step 2.3: get i=1;
Step 2.4: from interaction feature idol collection FQ, select interaction feature idol fq
i, according to fq
iScale-of-two global identifier identification interaction feature idol fq
iTwo related part model q
kAnd q
j, k wherein, j ∈ 1 ..., s}, and k ≠ j;
Step 2.5: with part model q
kThe interaction feature idol fq that embeds
iIn unappropriated characteristic element be appointed as part model q
jThe interaction feature idol fq that embeds
iIn appointed characteristic element, simultaneously to part q
jThe middle interaction feature idol fq that embeds
iIn unappropriated characteristic element be appointed as part model q
kThe interaction feature idol fq that embeds
iIn appointed characteristic element, and realize one based on interaction feature idol fp by the relation between two characteristic elements of specifying
iPart assembling;
Step 2.6: get i=i+1, return step 2.4, the part assembling of all interaction feature idols in finishing based on interaction feature idol collection FQ.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913493A (en) * | 2016-04-25 | 2016-08-31 | 北京航空航天大学 | Interaction property and three-dimensional model combined construction method based on single image |
| CN112989518A (en) * | 2021-03-16 | 2021-06-18 | 华南理工大学 | Intelligent assembly modeling method based on design intention |
| CN113591232A (en) * | 2021-03-16 | 2021-11-02 | 华南理工大学 | Product information modeling method based on interactive feature couple |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2378445A1 (en) * | 2010-04-14 | 2011-10-19 | Sick AG | System and method for planning the security of a potentially hazardous industrial facility |
| JP2012073973A (en) * | 2010-09-30 | 2012-04-12 | Sharp Corp | Function analysis method, function analysis apparatus, and function analysis program |
| CN102609573A (en) * | 2012-01-18 | 2012-07-25 | 北京理工大学 | Method and device for predicting assembly dimension and form and position precision of product |
| US20120278046A1 (en) * | 2011-04-29 | 2012-11-01 | Siemens Product Lifecycle Management Software Inc. | Interactive configuration-management-based diagramming tool |
| CN102968520A (en) * | 2012-10-25 | 2013-03-13 | 北京航天新风机械设备有限责任公司 | Product assembling technology generation method based on assembling process simulation |
| CN103093045A (en) * | 2013-01-10 | 2013-05-08 | 浙江工业大学 | Interactive product configuration platform |
| CN103093012A (en) * | 2011-11-02 | 2013-05-08 | 同济大学 | Product behavior flow modeling method based on hybrid Petri network |
-
2013
- 2013-05-15 CN CN201310180273.4A patent/CN103279599B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2378445A1 (en) * | 2010-04-14 | 2011-10-19 | Sick AG | System and method for planning the security of a potentially hazardous industrial facility |
| JP2012073973A (en) * | 2010-09-30 | 2012-04-12 | Sharp Corp | Function analysis method, function analysis apparatus, and function analysis program |
| US20120278046A1 (en) * | 2011-04-29 | 2012-11-01 | Siemens Product Lifecycle Management Software Inc. | Interactive configuration-management-based diagramming tool |
| CN103093012A (en) * | 2011-11-02 | 2013-05-08 | 同济大学 | Product behavior flow modeling method based on hybrid Petri network |
| CN102609573A (en) * | 2012-01-18 | 2012-07-25 | 北京理工大学 | Method and device for predicting assembly dimension and form and position precision of product |
| CN102968520A (en) * | 2012-10-25 | 2013-03-13 | 北京航天新风机械设备有限责任公司 | Product assembling technology generation method based on assembling process simulation |
| CN103093045A (en) * | 2013-01-10 | 2013-05-08 | 浙江工业大学 | Interactive product configuration platform |
Non-Patent Citations (4)
| Title |
|---|
| ARIEL E. MECHALY ET AL: "Pores of the toxin FraC assemble into 2D hexagonal clusters in both crystal structures and model membranes", 《JOURNAL OF STRUCTURAL BIOLOGY》 * |
| MOHSEN ELHAFSI: "Optimal integrated production and inventory control of an assemble-to-order system with multiple non-unitary demand classes", 《EUROPEAN JOURNAL OF OPERATIONAL RESEARCH》 * |
| 武殿梁 等: "虚拟装配系统及其关键技术", 《上海交通大学学报》 * |
| 白跃伟 等: "基于结构造型技术的三维CAD系统的研究", 《计算机集成制造系统-CIMS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105913493A (en) * | 2016-04-25 | 2016-08-31 | 北京航空航天大学 | Interaction property and three-dimensional model combined construction method based on single image |
| CN105913493B (en) * | 2016-04-25 | 2019-03-08 | 北京航空航天大学 | A kind of interaction attributes based on single image and threedimensional model joint mapping method |
| CN112989518A (en) * | 2021-03-16 | 2021-06-18 | 华南理工大学 | Intelligent assembly modeling method based on design intention |
| CN113591232A (en) * | 2021-03-16 | 2021-11-02 | 华南理工大学 | Product information modeling method based on interactive feature couple |
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