Quantifying M.C. Contents

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1 Quantifying M.C. Contents Introduction WandaX: Environmental Energy Harvesting Puppy: Agent-Environment Interaction, Efficiency Chain Robot: Passive Folding and AI Self-Assembly: Passive Assembly and AI Underlying Concepts Reproducibility Parametric Robots Minimal Approach: Simple not simpler 1

2 The A.I. Lab (aka the coolest place) 2

3 The A.I. Lab: Some Philosophy The synthetic approach 3

4 The A.I. Lab: Some Philosophy Design Principles 4

5 Background

6 Active Projects 4 projects will be presented here. Each project has its own objective but all of them share a common principle: WandaX: Environmental Energy Harvesting. Puppy: Agent-Environment Interaction, Efficiency. Chain Robot: Passive Folding and AI. Self-Assembly: Passive Assembly and AI. What can morphology do for us? 6

7 WandaX: Energy Harvesting... live trout can Kármán gait temporarily without any axial muscle activity. Consequently, dead trout towed behind a cylinder can generate thrust passively and move upstream on a slack line when the natural resonance of their body allows for synchronization with vortices. A review of fish swimming mechanics and behavior in altered flows Phil. Trans. R. Soc. B (2007) 362, doi: /rstb

8 WandaX: Energy Harvesting In collaboration with Marc Ziegler (the robot builder) and Tobi Delbrück. Video! 8

9 WandaX: Energy Harvesting D. N. BEAL, F. S. HOVER, M. S. TRIANTAFYLLOU, J. C. LIAO and G. V. LAUDER (2006). Passive propulsion in vortex wakes. Journal of Fluid Mechanics, 549, pp doi: /s

10 Puppy: Gait Efficiency In collaboration with Matěj Hoffmann (the great Logician) and Harold Martinez Salazar. 10

11 Puppy: Gait Efficiency Gait as an emergent behavior from interacting local controllers. The body of the robot and the environment act as the medium where information is transferred (with processing). 11

12 Puppy: Gait Efficiency The legs of the robot are considered transducers and we focus on their design. Get the maximum out of morphology. Video! Video! 12

13 Puppy: Gait Efficiency IO Spring Filtered 13

14 Puppy: Gait Efficiency After Jump 14

15 Puppy: Gait Efficiency Iterated Map ~ 20% compression. 80 kg ~3 Hz Fixed landing angle 15

16 Puppy: Gait Efficiency Video! 16

17 Puppy & WandaX Morphology as a tool to reduce computation and power consumption. Parametric robots used as experimental platforms. Reproducibility allows repeated experiments. Strong support from simulations. Once a configuration produces satisfactory results a final version of the robot is built. 17

18 Chain Robot: Passive Folding In collaboration with Shuhei Miyashita, Ezequiel Pozzo and Tomás Guozden. Hundreds of possible configurations each one with a potential functionality. Passive folding induced by magnets. Computational simulations to study the basin of attraction of each configuration. Quantify the effect of morphological (shape and magnet position) parameters on the basin of attraction measure, and in the creation and destruction of configurations. 18

19 Chain Robot: Passive Folding Possible folded states depend strongly on shape. How can we quantify this effect? Idea: Yield ratio. 19

20 Chain Robot: Passive Folding Actuation as perturbation allowing prohibited transitions. Exploration? Learning? Sensory-motor coordination? 20

21 Chain Robot: Passive Folding 21

22 Chain Robot: Passive Folding How do we implement function/behavior? 22

23 S.A.: Passive Assembly In collaboration with Shuhei Miyashita (Samurai Bushidooo!) and Marco Kessler. Video! 23

24 S.A.: Passive Assembly 24

25 S.A.: Passive Assembly 25

26 S.A.: Passive Assembly 26

27 Yield ratio S.A.: Passive Assembly Noise level 27

28 Chain Robot & S.A. Macroscopic systems can be studied with the same tools used with microscopic ones. Morphology plays a fundamental role in the behavior of the system. Exploiting morphology and the natural dynamics of the system can produce extreme interesting behavior with very simple brains. Important engineering challenges like the development of novel actuators. 28

29 Questions Thank you very much Please visit our website 29

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