Parametric Piping Models. Naveed Anwar July 2003

Transcription

1 Parametric Piping Models Naveed Anwar July 2003

2 The Idea Basic idea is to assign parametric objects to basic line or area objects in the SAP2000 model and then generate detailed mesh for each object, on-demand using physical dimensions and parameters of the respective objects The object parameters as well as its location in overall model can be modified any time and mesh re-generated

3 The Process The User Draws simplified line model Assigns the piping objects to the line objects Set the properties of the piping objects The Program Generates a Detailed Line Model Generates a Detailed Shell Model Generates a Mixed Model

4 Basic Object Types Pipes and Tubes Vessels Bends Joints and Connections Transitions Caps and Covers Pedestals

5 The Basic Line Model The line object model created in SAP2000 Objects are assigned to various line objects Parameters for each object assigned in separate templates and forms

6 The Parametric Models 1. Pedestal 5 2. Cap 4 3. Pipe 6 4. Cap 5. Bends Transition 7. Pipe 8. S-Bend Pipe 10. Bend Pipe and Transition 1

7 The Generated Model The Model The Mesh

8 Object Based Model The Line Model Meshed Model

9 Generated Shell Model

10 The Detailed Line Model The User Line Model The Generated Line Model

11 Parametric Models 1. Pipe 2. Bend, Sharp 3. Pipe 4. Bend, Sharp 5. Pipe 6. Bend, Arc 7. Joint

12 Parametric Models 1. Pedestal 2. Joint 3. Bend, Arc 4. Pipe 5. Bend, Arc 6. Pipe 7. Tube 8. Pedestal

13 Parametric Models 1. Graded Tube 2. Transition 3. Pipe 4. Joint Pipe 6. Transition 7. Transition Pipe

14 Parametric Models 1. Tube Joint 2. Tube 3. Transition Pipe Pipe Joint

15 Mesh Clipping A tool for Meshing of Junction and Intersections

16 Mesh Clipping Mesh clipping is used as the basic tool to create mesh at object intersections Four 3D Mesh Clippings are used Mesh Clipped by Plane Mesh Clipped by Pipe Mesh Clipped by Tube Mesh Clipped by Sphere Direct Mesh Intersection is computed using Triangle-Triangle Intersection

17 Mesh Clipped by Plane Given Mesh is clipped at the intersection of a Plane Defined by 3-Points Mesh above and below the plane is returned

18 Mesh Clipped by Pipe Given Mesh is clipped at the intersection of a pipe defined by diameter and centerline Mesh inside and outside the pipe is returned

19 Mesh Clipped by Tube Given Mesh is clipped at the intersection of a rectangular tube defined by b x h and centerline Mesh inside and outside the tube is returned

20 Mesh Clipped by Sphere Given Mesh is clipped at the intersection of a sphere defined by diameter and center Mesh inside and outside the sphere is returned

21 Object Intersections

22 Pipe and Plate Intersection Pipe Cut By Two Planes

23 Pipes and Plates Intersection

24 General 3-Pipe Junction

25 General 3-Pipe Junction

26 General Multi-pipe Junction

27 Cut Pipes Before Weld Pipe 1 Pipe 2 Pipe 4 Pipe 3

28 Mesh Unwrapping Mesh Intersection Result Flat Sheet Equivalent For Cutting Etc.

29 Sheets Before Pipes Pipe2 Pipe3 Pipe4

30 Sphere and Pipe Junction Holes Cut by Pipes The Assembly The Subtracted Sphere

31 Basic Piping Objects

32 Nuclear Plant Piping U Expansion Double Offset Expansion Single Offset U Double Offset U

33 Nuclear Plant Piping

34 Pipe and Vessel Pedestals

35 PLATES

36 Parametric Model Parametric Model

37 Parametric Model Parametric Model

38 Parametric Model Parametric Model

39 Parametric Model Parametric Model

40 Parametric Model Parametric Model

41 PIPES AND TUBES

42 Parametric Model Parametric Model

43 Parametric Model Parametric Model

44 Parametric Model Parametric Model

45 Parametric Model Parametric Model

46 Parametric Model Parametric Model

47 CONNECTIONS

48 Parametric Model Parametric Model

49 Parametric Model Parametric Model

50 Parametric Model Parametric Model

51 Parametric Model Parametric Model

52 Parametric Model

53 Transitions

54 Parametric Model Parametric Model

55 Parametric Model