david rasner, animation 3
DESCRIPTION
David Rasner, Animation David Rasner r0826035 3D Modelling and Animation III, S2015TRANSCRIPT
![Page 1: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/1.jpg)
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
![Page 2: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/2.jpg)
01 Design StrategyPage 1/2
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
1.1 Design ideas
NO NO NO
![Page 3: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/3.jpg)
01 Design StrategyPage 2/2
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
1.2 Design ideas
Maybe Yes
• 4 Anchor ground points, 1 Anchor top point • Rectangle a x b; b = 2 a• Min. hight (headspace) = 2.50 m• Area inside blue line: min. 70% of the rectangle a x b• Height h of the top point: h, max = a• Min. Volume between rectangle a x b and membrane = 500 m3• Can drain rain-water
![Page 4: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/4.jpg)
01 Design AnalyisChecking requirements
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
1.3 Analysis
![Page 5: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/5.jpg)
01 Design AnalyisChecking requirements
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
1.3 LoadProblem: Karamba (trial) wont let me use high resolution meshes (object number limit) and low resolution meshes behave differently (weird).
In Nastran (Autodesk): Material Model? Isotropic? Orthotropic? No idea (a little bit above my paygrade).
![Page 6: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/6.jpg)
NUMBER TO BEAT
02 David Rasner (r0826035) for 3D Modelling and Animation III, S2015
- Compression
2.1 Utilization analysis
2.2 Material setup
- Tension
Steel Cable
Wood
2.3 Deformation (optimized result, standard profiles only) 2.5 Various scenarios (standard profiles only)
2.5.1Allsteel,uniform(beamsgrouped)optimization,deformation≤10cm:
2.5.2Allsteel,independentelementoptimization,deformation≤10cm:
2.5.5Steelandwood,uniform(beamsgrouped)optimization,deformation≤10cm:
2.5.5Steelandwood,independentelementoptimization,deformation≤10cm:2.4 Element mass (optimized result, stand-ard profiles only)
Strategy ACrossection Optimization
Mass: 368.10 KgDisplacement: 9.895 cm
Mass: 582.61 KgDisplacement: 7.256 cm
Mass: 827.23 KgDisplacement: 6.376 cm
Mass: 1869.71 KgDisplacement: 4.391 cm
![Page 7: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/7.jpg)
02 David Rasner (r0826035) for 3D Modelling and Animation III, S2015Strategy AParametric model with a fitness function.
2.5 Starting point 2.6 Generation 2 (optimized result, standard profiles only) utilization analysis
2.7 Generation 2 (optimized result, standard profiles only) displacement analysis
Point allowed to move in a plane
Point anchored
Mass: 368.10 KgDisplacement: 9.895 cm
Mass: 246.68 KgDisplacement: 2.866 cm
Relative Coordinates = gene pool (Genom)
Assembly mass = fitness
MINIMIZE!
Evolutionary Solver
Karamba’sOptiCroSecCompontet
![Page 8: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/8.jpg)
02
THESIS: BUT:
Strategy BDensity Distribution
In terms of weight, it’s more or less the same as the second generation in strategy 1
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
2.6 Density distribution analysis 2.7 Karamba Model (optimized result, standard profiles only) utilization analysis
2.8 Most plausible approach: Density optimised microtrusses
How to, density optimised microtruss:
STEP #1: Triangulation of a density distribution map.
STEP #2: Removing all unnecessary elements (tension/compression eliminator), leaving a leigthweight, density optimized microtruss structure.
PROBLEM #1: The tools available to me do not produce high enough resolution maps.
PROBLEM #2:Karamba student license limits the beam num-ber to 82, not enough.
:(
Mass: 269.672 KgDisplacement: 2.731 cm
![Page 9: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/9.jpg)
03 Strategy ADensity Distribution
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
3.1 Design ideas, 1: No need to reinvent the wheel (edge length analysis)
3.1 Design ideas, 3: Arch truss 2 (edge length analysis)
3.1 Design ideas, 2: Arch truss (edge length analysis)
3.1 Design ideas, 4: ~1m Triangles (laplacian smoothing)
MAYBE MAYBE
MAYBEMAYBE
![Page 10: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/10.jpg)
03 Strategy ADensity Distribution
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
3.1 Design ideas, 1: Felting optimization3.1 Design ideas, 5: Force distribution in 3D (better Software)
MAYBE
Too long
![Page 11: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/11.jpg)
03 Strategy ADensity Distribution
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
3.1 Design ideas, 6: Felting optimization (edge length analysis)
3.1 Design ideas, 6: Felting optimization, Karamba Model (displacement)
3.1 Design ideas, 7: Truss along two catenary curves (edge length analysis)
NO NO
![Page 12: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/12.jpg)
03 Strategy ADensity Distribution
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
3.1 Design ideas, 1: Felting optimization3.2 Design Analysis, option 5 (wide flange 140). Axial stress (top), displacement (bottom).
NO
![Page 13: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/13.jpg)
03 Strategy ADensity Distribution
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
3.1 Design ideas, 1: Felting optimization3.2 Design Analysis, option 5 (DIN I 100). Axial stress (top), displacement (bottom).
YES
![Page 14: David Rasner, Animation 3](https://reader030.vdocuments.net/reader030/viewer/2022020112/579071a51a28ab6874a31457/html5/thumbnails/14.jpg)
03 Strategy ADensity Distribution
David Rasner (r0826035) for 3D Modelling and Animation III, S2015
3.1 Design ideas, 1: Felting optimization3.2 Design Analysis, option 5 (DIN I 100).