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Fig. 3 from the 2014 GENOPT paper.
Sample starting designs of corrugated panels, each with 8 major segments and with an alternating “convex surface up”/ “convex surface down” configuration. There are no sub-segments in this particular example, which is called “fold98updown”. PHIBIG is the overall arching angle in degrees. THICK(i), SUBWID(i), PHISEG(i), i = 1, 2, 3,…NSEG, and YPLATE(j), j = 1, 2, 3, …NSEG+1, are decision variable candidates. The overall arching angle, PHIBIG, is also a decision variable candidate. Top: No overall arching (PHIBIG=0.1 degree); Middle: small overall arching (PHIBIG=10 degrees); Bottom: large overall arching (PHIBIG=60 degrees). The number of major segments over half the width, WIDTH/2, of the panel is NSEG=8.
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