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List of figures
Figure 1. A simplified example of information flow in a DSS simulation
FPInnovations Forestry group has developed a variety of computer-based systems or tools to aid forestry practitioners with decision making in harvest operations. These information systems, aptly called Decision Support Systems (DSS), allow the simulation of operational decisions using software applications. With these simulations, the outcomes of operational decisions can be promptly forecasted. DSSs thus allow users to compare the feasibility and economic value of different potential operational decisions.
This project presents the results of a computer simulation of the recovery obtained from six bucking optimization systems equipped with different scanner and conveyor combinations.
Forty sample stems were scanned and stem models developed to provide input for Forintek’s sawing simulation program, OPTITEK®. Input files of both sawmill machinery and their products were developed based upon the operation of a typical sawmill in the Interior of B.C. Optimized bucking solutions were generated, and sample stems were sawn accordingly. Lumber value and volume recovery data were obtained and enabled a performance evaluation of the six bucking optimization systems.
In this project the affect of both the log conveying system and the type of scanner was considered. Both lineal and transverse conveyor systems were studied and the effects of true shape, partial true shape and XY scanners were modelled. Various combinations of parameters were studied and the annual dollar production for such combinations were computed.
Recommendations are made relating to the different systems studied and how the results may be of benefit to mill optimization.
Le rapport présente une carte routière traçant les grandes lignes d'une stratégie d'innovation technologique, de recherche et de développement, ainsi que de transfert technologique pour les opérations forestières canadiennes au cours de la prochaine décennie. La carte identifie les points de départ et d'arrivée, discute des forces motrices, décrit les occasions favorables à des améliorations technologiques et donne des recommandations sur la meilleure route à choisir pour l'avenir.
The report presents the verification of two truss analysis computer programs developed at Forintek. Validation consisted of comparing the computed truss deflections with the deflections measured from full scale truss tests conducted at Forintek. Issues which should be considered when modeling parallel chord trusses using either of the two computer models are discussed. A strategy for estimating lateral load sharing and composite action in flat roof and floor systems using these models with the Floor Analysis Program (FAP) is discussed.
Trusses - Computer simulation
Joints and fastenings - Strength - Computer simulation
