Original scientific paper
https://doi.org/10.7305/automatika.54-4.309
Genetic Re-planning Strategy of Wormhole Model using Neural Learned Vibration Behavior in Robotic Assembly
Lejla Banjanovic-Mehmedovic
orcid.org/0000-0002-3810-8645
; Department for Automation, Faculty of Electrical Engineering, University of Tuzla, Franjevačka 2, 75000 Tuzla, Bosnia and Herzegovina
Fahrudin Mehmedovic
; ABB Representative, Sjenjak 1/222, 75000 Tuzla, Bosnia and Herzegovina
Ivan Bosankic
; IVL, Marsala Tita 155, 75000 Tuzla, Bosnia and Herzegovina
Senad Karic
; H&H Inc., Trg Stara Trznica 8, 75000 Tuzla, Bosnia and Herzegovina
Abstract
This paper investigates the genetic based re-planning search strategy, using neural learned vibration behavior for achieving tolerance compensation of uncertainties in robotic assembly. The vibration behavior was created from complex robot assembly of cogged tube over multistage planetary speed. Complex extensive experimental investigations were conducted for the purpose of finding the optimum vibration solution for each planetary stage reducer in order to complete the assembly process in defined real-time. However, tuning those parameters through experimental discovering for improved performance is a time consuming process. Neural network based learning was used to generate wider scope of parameters in order to improve the robot behavior during each state of the assembly process. As a novel modelling formalism of reactive hybrid automata, we propose the Wormhole Model with both learning and re-planning capacities (WOMOLERE). For our application, the states of hybrid automaton include amplitudes and frequencies of robot vibration module. The transition action is a function of minimal distance and uncertainty effects due to jamming during the assembly process. The results suggest that the methodology is adequate and could be recognized as an idea for designing of robot surgery assistance methods, especially in soft-robotics.
Keywords
Hybrid Automaton; Learning Behavior; Re-planning Search Strategy; Robot Assembly; Wormhole Model
Hrčak ID:
114767
URI
Publication date:
14.1.2014.
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