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Evaluation and selection of assembly plans

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2 Author(s)
Homem de Mello, L.S. ; Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA ; Sanderson, A.C.

Two criteria are introduced for the evaluation and selection of assembly plans. The first criterion is to maximize the number of different sequences encompassed by the assembly plan. The second criterion is to maximize the amount of parallelism (i.e., simultaneity) that is possible in the execution of the assembly tasks. While the metrics corresponding to the criteria used in previous work can be expressed as a sum of terms, each being a function of a task or a state, the metrics corresponding to the criteria introduced are more complex functions of the whole assembly plan. An algorithm that performs a heuristic search for the best assembly plan over an AND/OR graph representation of assembly plans is presented. Admissible heuristics for each of the two criteria are presented

Published in:

Robotics and Automation, 1990. Proceedings., 1990 IEEE International Conference on

Date of Conference:

13-18 May 1990