Lecture 44: Analysis iteration 2 - Adding props and stay cables | Modelling and Analysis of Non-linear Cablenet Structures using Python and Blender | EngineeringSkills.com

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Section 1

Introduction, Course Breakdown & Prerequisites

1. Introduction and course overview

06:37 (Preview)

2. Course prerequisites

02:17 (Preview)

3. Moving to JupyterLab

06:52 (Preview)

4. Cablenet structures

31:25 (Preview)

Section 2

Developing the 3D non-linear stiffness matrix

5. Section 2 overview

01:12 (Preview)

6. Building the 3D transformation matrix

7. Extending the non-linear stiffness matrix

Section 3

Extending our Blender Utility Scripts

8. Section 3 overview

01:17 (Preview)

9. Generate a simple cablenet 📂

10. Extending our Blender export scripts

11. Visualising axial forces and deflections in Blender 📂

Section 4

Extending our solver toolbox from 2D to 3D

12. Section 4 overview

01:33 (Preview)

13. Updating our notebook structure 📂

14. Basic updates to our preprocessing code 📂

15. Implementing a basic 3D plot

16. Fixing the 3D scale problem

17. Implement support type visualisation

18. Implementing 3D arrows

19. Implementing 3D annotations

20. Building the transformation matrix

21. Calculating the pre-tension force vector

22. Building the stiffness matrix

23. Calculating the internal force system and axial forces

24. Recap of the main loop logic

25. Updating the results plot - phase 1

26. Updating the results plot - phase 2

27. Updating the results plot - phase 3

28. Using Pandas DataFrames to represent our data

29. Visualising deflection and axial force data in Blender 📂

Section 5

Cable-stayed antenna tower…in 3D

30. Section 5 overview

01:06 (Preview)

31. Model generation in Blender 📂

32. Solving the antenna tower 📂

33. Saving and exporting all simulation data 📂

34. Building a results viewer notebook 📂

Section 6

Parametric modelling and form-finding in Blender

35. Section 6 overview

01:24 (Preview)

36. Simulation initial geometry in Blender - Part 1

37. Simulation initial geometry in Blender - Part 2 📂

38. The relationship between form-finding and pre-tension

39. Procedural modelling with geometry nodes [Optional] 📂

Section 7

Cablenet Pavilion - Hyperbolic Paraboloid

40. Section 7 overview

01:00 (Preview)

41. Accommodating different cable types

42. Generating initial geometry and pre-tension 📂

43. Analysis iteration 1 - Establishing pre-tension

44. Analysis iteration 2 - Adding props and stay cables 📂

Section 8

Frei Otto's Dancing Fountain in Cablenet form

45. Section 8 overview

01:35 (Preview)

46. Form-finding the initial geometry

47. Roof pre-tension simulation

48. Full structure pre-tension simulation 📂

49. Applying load to the pre-tensioned structure 📂

Section 9

Course wrap up

50. Course wrap up

Section 10

Appendix: Building Axial Force Visualisations in Blender

51. Blender data-viz - Structure setup & force data 📂

52. Blender data-viz - Blocking out the code

53. Blender data-viz - The transformation matrix

54. Blender data-viz - Generating materials from force data 📂

44. Analysis iteration 2 - Adding props and stay cables

Cablenet Pavilion - Hyperbolic Paraboloid

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Modelling and Analysis of Non-linear Cablenet Structures using Python and Blender

Learn how to combine parametric modelling, exploratory form-finding and iterative analysis techniques to simulate 3D tensile structures.

After completing this course...

You will be able to apply an iterative Newton-Raphson technique to solve for the non-linear behaviour of 3D cablenet structures.
You will be able to apply parametric modelling and simulation-based form finding techniques to generate cablenet geometry.
You will have developed a complete modelling, analysis and visualisation workflow for exploring these elegant yet complex structures.

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45. Section 8 overview