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19 records – page 1 of 2.

Butt damage and machine productivity with various degrees of multiple-tree felling: a case study

https://library.fpinnovations.ca/en/permalink/fpipub3990
Author
Andersson, Björn
Dyson, Peter
Date
August 2005
Edition
40717
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Dyson, Peter
Date
August 2005
Edition
40717
Material Type
Research report
Physical Description
7 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Saws
Advantage
Series Number
Advantage ; Vol. 6, No. 18
Language
English
Abstract
The Forest Engineering Research Institute of Canada (FERIC) examined the level of butt damage from felling with a high-speed circular-saw felling head when a feller-buncher accumulated from one to five trees per cycle. The machine's productivity for the different number of trees per cycle was recorded, and the impact of factors such as terrain and stand conditions on wood damage is discussed.
Butt damage
Felling
Fibre loss
Feller bunchers
High-speed circular saws
Heads
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Butt damage associated with high-speed circular saws in winter operations

https://library.fpinnovations.ca/en/permalink/fpipub3908
Author
Andersson, Björn
Date
July 2003
Edition
40631
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Date
July 2003
Edition
40631
Material Type
Research report
Physical Description
11 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Saws
Advantage
Series Number
Advantage ; Vol. 4, No. 16
Language
English
Abstract
The Forest Engineering Research Institute of Canada (FERIC) examined the level of butt damage from felling with high-speed circular saws in three winter harvesting operations in Alberta and British Columbia. The location and extent of the butt damage on each damaged stem were recorded, and the impact of the butt damage in terms of loss of sawlog volume available for lumber manufacturing was projected. Factors influencing butt damage are discussed, and recommendations to reduce wood losses are made.
Butt damage
Felling
Fibre loss
Feller bunchers
High-speed circular saws
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Cut-to-length and tree-length harvesting systems in Central Alberta a comparison

https://library.fpinnovations.ca/en/permalink/fpipub39945
Author
Andersson, Björn
Date
October 1994
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Date
October 1994
Material Type
Research report
Physical Description
37 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Sites
Harvesting
Alberta
FOP Technical Report
FPI TR
Series Number
FO Technical Report ; TR 108
Language
English
Abstract
HARVESTING
Old growth
Second growth
FELLING
Manual method
Mechanical method
PROCESSING
EXCAVATOR-FORWARDERS
LOADERS
LONG-BOOM LOADERS
Grapple yarders
PRODUCTIVITY
COSTS
PERFORMANCE
POST-HARVEST SITE ASSESSMENT
Coastal British Columbia
ACL 771B FELLER-BUNCHER
JOHN DEERE 992D LOADER
HITACHI EX-400 LOADER
MADILL 075 LONG-BOOM LOADER
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A decision support model for predicting net revenue of harvesting coastal second-growth forests

https://library.fpinnovations.ca/en/permalink/fpipub36811
Author
Pavel, Mihai
Andersson, Björn
Young, G.G.
Date
1999
Material Type
Research report
Field
Fibre Supply
Author
Pavel, Mihai
Andersson, Björn
Young, G.G.
Date
1999
Material Type
Research report
Physical Description
8 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Value added
Systems
Simulation
Second growth forests
Second growth
Productivity
Logs
Harvesting
Growth
Costs
British Columbia
FPI TR
Series Number
Technical Report ; TR-000126
Language
English
Abstract
FERIC and the Faculty of Forestry of the University of British Columbia (UBC) developed a computer model, for use at the cutblock level, to predict the net revenue of coastal second-growth stands that are to be clear-cut or partial cut. Cruise data and company sort descriptions are used to predict volume by sort and timber value. Productivity and cost data from within the model, or as defined by the user, determine the total harvesting costs for an operation. Net revenue is obtained by subtracting the harvesting cost from the timber value. At two harvesting sites near Powell River, B.C., the predicted total volumes and timber values were within 5% and 3% of scaled volumes and actual values, respectively.
Harvesting
Second-growth forests
Economic aspects
Predicted log value
Productivity
Costs
Decision support systems
Models and simulation
Coastal British Columbia
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Dommages au gros bout des tiges dus à l'usage de scies circulaires à haute vitesse dans les opérations d'hiver

https://library.fpinnovations.ca/en/permalink/fpipub40405
Author
Andersson, Björn
Date
September 2003
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Date
September 2003
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Saws
Sawing
Feller
Advantage
Series Number
Avantage ; Vol. 4, No. 16
Language
French
Abstract
Dommages au gros bout des tiges
Abattage
Perte de fibre
Abatteuses-groupeuses
Scies circulaires à haute vitesse
Abstract
L'Institut canadien de recherches en génie forestier (FERIC) a examiné le niveau de dommages au gros bout des tiges à l'abattage par scies circulaires à haute vitesse, dans trois opérations de récolte d'hiver en Alberta et en Colombie-Britanique. L'emplacement et l'étendue de ces dommages ont été enregistrés pour chaque tige observée, et on a fait une projection de leur impact en termes de perte en volume des billes de sciage destinées à la fabrication de bois sciés. Les facteurs influençant l'endommagement des gros bouts sont discutés et des recommendations sont formulées en vue de réduire les pertes de bois.
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Dommages au gros bout des tiges et productivité de la machine à divers degrés d'abattage multi-tige : une étude de cas

https://library.fpinnovations.ca/en/permalink/fpipub40437
Author
Andersson, Björn
Dyson, Peter
Date
October 2005
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Dyson, Peter
Date
October 2005
Material Type
Research report
Physical Description
7 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Felling head
Saws
Sawing
Feller
Advantage
Series Number
Avantage ; Vol. 6, No. 18
Language
French
Abstract
Dommages au gros bout des tiges
Abattage
Perte de fibre
Abatteuses-groupeuses
Scies circulaires à haute vitesse
Têtes d'abattage
Abstract
L'Institut canadien de recherches en génie forestier (FERIC) a examiné le niveau de dommages au gros bout des tiges dus à l'abattage par scie circulaire à haute vitesse, quand une abatteuse-groupeuse accumule de un à cinq arbres par cycle. La productivité de la machine a été enregistrée pour les différents nombres d'arbres par cycle, et l'influence de facteurs tels que les conditions de terrain et de peuplement sur les dommages causés au bois fait l'objet de discussion.
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Dommages mécaniques aux tiges en longueur associés aux manutentions dans un parc d'usine : une étude de cas

https://library.fpinnovations.ca/en/permalink/fpipub40394
Author
Andersson, Björn
Forrester, Patrick
Dyson, Peter
Date
March 2003
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Forrester, Patrick
Dyson, Peter
Date
March 2003
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Mill
Piles
Storage
Advantage
Series Number
Avantage ; Vol. 3, No. 33
Language
French
Abstract
Dommages aux tiges
Bris
Tiges en longeur
Stockage des billes
Manutention des billes
Parc d'usine
Abstract
L’Institut canadien de recherches en génie forestier (FERIC) a examiné l’incidence des dommages mécaniques causés aux tiges en longueur, par suite du stockage et de la manutention dans un parc d’usine du nord de l’Alberta. Une projection de la fréquence des bris et de la perte en volume de sciage a été faite pour les tiges stockées dans le parc de l’usine pendant quatre périodes de durée différente. Les facteurs qui peuvent avoir influencé les niveaux de dommage sont discutés, et le rapport comprend des recommandations en vue de réduire les pertes de bois dues aux bris.
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Evaluating the measuring accuracy of harvesters and processors

https://library.fpinnovations.ca/en/permalink/fpipub40563
Author
Andersson, Björn
Dyson, Peter
Date
2002
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Dyson, Peter
Date
2002
Material Type
Research report
Physical Description
19 p
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Processors
Measurement
Harvesters
Canada
Advantage
Series Number
Advantage ; Vol. 3, No. 4
Language
English
Abstract
The Forest Engineering Research Institute of Canada (FERIC) examined the measuring accuracy of common harvesters and processors operating in British Columbia and Alberta. The results showed large variations in length and diameter performance of the machines, which was attributed partly to differences in emphasis placed on measuring accuracy at the harvesting site. Other factors affecting measuring accuracy included variation in tree characteristics, lack of properly calibrated measuring systems, and wrong target lengths programmed in the measuring system's computer. Based on the findings, FERIC made suggestions to improve measuring performance.
Measurement accuracy
Harvesters
Processors
Western Canada
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Harvesting coastal second-growth forests: hand falling and skyline yarding

https://library.fpinnovations.ca/en/permalink/fpipub5420
Author
Andersson, Björn
Warren, F.
Date
May 1996
Edition
36625
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Warren, F.
Date
May 1996
Edition
36625
Material Type
Research report
Physical Description
14 p
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Softwoods
Yarders
Sites
Site disturbance
Second growth forests
Second growth
Productivity
Logs
Harvesting
Growth
Cable logging
British Columbia
Series Number
Technical Note ; TN-000239
Language
English
Abstract
Between December 1993 and March 1994, FERIC monitored hand-falling and skyline-yarding operations in a 9.6-ha second-growth stand of Douglas-fir, western hemlock, and western redcedar in Coastal British Columbia. The study measured falling and skyline yarding productivities, identified factors influencing productivity, recorded extracted volumes by timber grades, and conducted post-harvest site assessments. Simple productivity prediction models were developed for falling only, falling and processing, and skyline yarding.
Harvesting
Second-growth forests
Softwoods
Felling
Manual method
Cable logging
Skyline
Productivity
Site disturbance
Coastal British Columbia
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Harvesting coastal second-growth forests: loader-forwarding of hand- and machine-felled timber

https://library.fpinnovations.ca/en/permalink/fpipub36685
Author
Andersson, Björn
Date
1997
Material Type
Research report
Field
Fibre Supply
Author
Andersson, Björn
Date
1997
Material Type
Research report
Physical Description
11 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Sites
Site disturbance
Second growth forests
Second growth
Productivity
Loaders
Harvesting
Growth
Costs
British Columbia
Series Number
Technical Note ; TN-000261
Language
English
Abstract
In the winter and spring of 1994, FERIC monitored a loader-forwarding operation extracting hand- and machine-felled timber from second-growth stands on Vancouver Island in British Columbia. FERIC measured worker and machine productivities, identified factors that influenced harvesting performance, and conducted post-harvest site assessments.
Harvesting
Second-growth forests
Forwarding
Loaders
Felling
MANUAL METHODS
MECHANICAL METHODS
Productivity
Costs
Site disturbance
Coastal British Columbia
ACL 771B FELLER-BUNCHER
Documents
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19 records – page 1 of 2.