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Adaptive control of bucking on harvesters: Target and timing effects
Citation
Murphy, G and Acuna, MA and Amishev, D, Adaptive control of bucking on harvesters: Target and timing effects, Forest Products Journal, 56, (11/12) pp. 79-83. ISSN 0015-7473 (2006) [Refereed Article]
Abstract
Optimally bucking individual stems, based on market prices, is unlikely to provide log product yields that meet order book constraints at the harvest unit or forest level. Adaptive control, in conjunction with dynamic programming, has been shown in earlier research to provide superior results from stem and stand log bucking when the stand is subject to order book constraints. Adaptive control can be achieved by adjusting relative prices and small-end diameter specifications as the harvester progresses through the stand. In this paper, the simulated effects on overall apportionment degree of varying 1) target proportions for given log types and 2) update frequencies are examined. The results show that varying the target proportions provided the best overall apportionment degree in only one of four test Pinus radiata stands, compared with holding the target proportions constant. Also, no significant differences in apportionment degree were found when examining update rates from 4 to 512 stems in both of the two test stands. © Forest Products Society 2006.
Item Details
Item Type: | Refereed Article |
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Research Division: | Agricultural, Veterinary and Food Sciences |
Research Group: | Forestry sciences |
Research Field: | Forestry sciences not elsewhere classified |
Objective Division: | Plant Production and Plant Primary Products |
Objective Group: | Forestry |
Objective Field: | Harvesting and transport of forest products |
UTAS Author: | Acuna, MA (Mr Mauricio Acuna) |
ID Code: | 46867 |
Year Published: | 2006 |
Web of Science® Times Cited: | 1 |
Deposited By: | Architecture |
Deposited On: | 2007-09-05 |
Last Modified: | 2010-04-26 |
Downloads: | 0 |
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