Accession Number : ADA260813


Title :   A Virtual Environment for Manufacturing Systems


Descriptive Note : Quarterly progress rept. Oct-Dec 1992


Corporate Author : IOWA CENTER FOR EMERGING MFG TECHNOLOGY AMES


Personal Author(s) : Oliver, J H ; Chen, L L ; Vanderploeg, M J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a260813.pdf


Report Date : Dec 1992


Pagination or Media Count : 2


Abstract : From October to December 1992, the research on Assembly Planning Through Visualization has been focused on the development and implementation of algorithms for proposing disassembly trajectories. One of the graduate students has been working on the development of a new set of algorithms for generating potential assembly/disassembly directions for components with free-form surfaces. To generate potentially feasible disassembly directions, an O(n logical and 2 alpha(n)) time algorithm has been developed for computing the spherical convex hull of a possibly self intersecting spherical curve consisting of n algebraic curved segments, where alpha(n) is the functional inverse of Ackermann's function and is a extremely slow growing function of n.


Descriptors :   *MANUFACTURING , *COMPUTER AIDED MANUFACTURING , ALGORITHMS , VERIFICATION , PLANNING , ASSEMBLY , SHEET METAL , CONVEX BODIES , DISASSEMBLY , TRAJECTORIES , VISION , COMPUTER APPLICATIONS , ROBOTS , SIMULATION


Subject Categories : Computer Programming and Software
      Cybernetics
      Mfg & Industrial Eng & Control of Product Sys


Distribution Statement : APPROVED FOR PUBLIC RELEASE