The impact of disc settings and slash characteristics on the Bracke three-row disc trencher’s performance

Ersson, Back Tomas; Cormier, Denis; St-Amour, M.; Guay, J. E.

doi:10.1080/14942119.2017.1272286

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…The simulation model, despite its simplicity, generated realistic results that are in line with current literature; traditional disc trenching can efficiently create many planting spots per hectare (Ersson et al 2017;Wallertz et al 2018). Moreover, the simulation supported the hypothesis: introducing sensor technology will enable continuously advancing, partly automated tree planting machines to plant seedlings with adequate spacing.…”

Section: Resultssupporting

confidence: 76%

“…Because Super-Silva does not have an extra operator commanding the planting arms, combined with the ambition to increase the planting quality compared to that of the original Silva Nova, SuperSilva's top travelling speed was set below the level of the original Silva Nova. Based on Ersson et al (2017), TradTrencher was simulated with only one travelling speed of 55 m•min -1 .…”

Section: Methodsmentioning

confidence: 99%

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Mechanized tree planting in Nordic forestry: simulating a machine concept for continuously advancing site preparation and planting

Manner¹,

Ersson²

2021

J. For. Sci.

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As labour for manual tree planting becomes scarcer, regeneration costs are steadily increasing in Nordic forestry. Today’s intermittently advancing tree planting machines provide excellent silvicultural results, but are expensive to operate because of poor productivity. In contrast, continuously advancing planting machines, thanks to high productivities, are increasingly being regarded as a solution to these runaway regeneration costs. The Silva Nova was a historical, continuously advancing tree planting machine with high productivity. However, Silva Nova’s weaknesses included high labour costs (it required two operators) and the random nature of how it chose planting spots. In contrast, SuperSilva, a purely conceptual modernisation of Silva Nova, involves both automation and microsite identification to make the machine more efficient. We used discrete-event simulation to analyse the stocking rate and spatial distribution of tree planting with SuperSilva. The simulation results showed that introducing sensors for identifying suitable microsites will allow continuously advancing planting machines (like SuperSilva) to plant seedlings in a numerically and spatially adequate manner on moraine soils. Hence, these sensors will increase the competitiveness and versatility of tree planting machines. Unfortunately, such reliable and robust sensor technology (unaffected by a wide variety of operating conditions) is not yet commercially available.

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Section: Resultssupporting

confidence: 76%

Section: Methodsmentioning

confidence: 99%

Mechanized tree planting in Nordic forestry: simulating a machine concept for continuously advancing site preparation and planting

Manner¹,

Ersson²

2021

J. For. Sci.

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“…Traditional mechanical site preparation methods, such as mounding and disc trenching [9][10][11], involve high energy consumption and impact a significant proportion of the soil in a regeneration area (17-70% of the total area of a clearcut [8]). The dominant tree species to be planted in northern Europe are Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) H.…”

Section: Introductionmentioning

confidence: 99%

Autoplant—Autonomous Site Preparation and Tree Planting for a Sustainable Bioeconomy

Hansson,

Sten,

Rossander

et al. 2024

Forests

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Sustainable forestry requires efficient regeneration methods to ensure that new forests are established quickly. In Sweden, 99% of the planting is manual, but finding labor for this arduous work is difficult. An autonomous scarifying and planting machine with high precision, low environmental impact, and a good work environment would meet the needs of the forest industry. For two years, a collaborative group of researchers, manufacturers, and users (forest companies) has worked together on developing and testing a new concept for autonomous forest regeneration (Autoplant). The concept comprises several subsystems, i.e., regeneration and route planning, autonomous driving (path planning), new technology for forest regeneration with minimal environmental impact, automatic plant management, crane motion planning, detection of planting spots, and follow-up. The subsystems were tested separately and integrated together during a field test at a clearcut. The concept shows great potential, especially from an environmental perspective, with significantly reduced soil disturbances, from approximately 50% (the area proportion of the area disturbed by disc trenching) to less than 3%. The Autoplant project highlights the challenges and opportunities related to future development, e.g., the relation between machine cost and operating speed, sensor robustness in response to vibrations and weather, and precision in detecting the size and type of obstacles during autonomous driving and planting.

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Tracking Control of Hydraulic Circuit with Mulit-layer Winding Hoses Based on NB-ASMC with Input Time-Delay

Qiang

Sun

2021

Lecture Notes in Electrical Engineering

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The impact of disc settings and slash characteristics on the Bracke three-row disc trencher’s performance

Cited by 6 publications

References 3 publications

Mechanized tree planting in Nordic forestry: simulating a machine concept for continuously advancing site preparation and planting

Mechanized tree planting in Nordic forestry: simulating a machine concept for continuously advancing site preparation and planting

Autoplant—Autonomous Site Preparation and Tree Planting for a Sustainable Bioeconomy

Tracking Control of Hydraulic Circuit with Mulit-layer Winding Hoses Based on NB-ASMC with Input Time-Delay

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