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DTSTART;TZID=America/New_York:20191111T120000
DTEND;TZID=America/New_York:20191111T130000
DTSTAMP:20191028T151920Z
CREATED:20191028T151920Z
LAST-MODIFIED:20191028T151920Z
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SUMMARY:MEAM Doctoral Dissertation Defense: "High-Dimensional Design Evaluations for Self-Aligning Geometries"
DESCRIPTION:Physical connectors with self-aligning geometry aid in the docking process for many robotic and automatic control systems such as robotic self-reconfiguration and air-to-air refueling. This self-aligning geometry provides a wider range of acceptable error tolerance in relative pose between the two rigid objects\, increasing successful docking chances. In a broader context\, mechanical alignment properties are also useful for other cases such as foot placement and stability\, grasping or manipulation. Previously\, computational limitations and costly algorithms prevented high-dimensional analysis. The algorithms presented in this talk will show a reduced computational time and improved resolution for this kind of problem. \nThis dissertation will review multiple methods for evaluating modular robot connector geometries as a case study in determining alignment properties. Several metrics are introduced in terms of the robustness of the alignment to errors across the full dimensional range of possible offsets. Algorithms for quantifying error robustness will be introduced and compared in terms of accuracy\, reliability\, and computational cost. Connector robustness is then compared across multiple design parameters to find trends in alignment behavior. Methods developed and compared include direct simulation and contact space analysis algorithms (geometric by a ‘pre-partitioning’ method\, and discrete by flooding). Experimental verification for certain subsets is also performed to confirm the results. By evaluating connectors using these algorithms we obtain concrete metric values. We can then quantitatively compare their alignment capabilities in either SE(2) or SE(3) under a pseudo-static assumption.
URL:https://seasevents.nmsdev7.com/event/meam-doctoral-dissertation-defense-high-dimensional-design-evaluations-for-self-aligning-geometries/
LOCATION:Room 3W2\, David Rittenhouse Lab\, 209 South 33rd Street\, Philadelphia\, PA\, 19104\, United States
CATEGORIES:Dissertation or Thesis Defense
ORGANIZER;CN="Mechanical Engineering and Applied Mechanics":MAILTO:meam@seas.upenn.edu
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