Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines
The report deals with forces and power requirements for cutting machines of the belt type, as exemplified by large chain saws and ladder trenchers. The forces of single cutting tools are considered, and related to the overall forces on a cutter bar. Forces are related to power, and sources of loss a...
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ftdtic:ADA055247 2023-05-15T16:37:13+02:00 Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines Mellor,Malcolm COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H 1978-04 text/html http://www.dtic.mil/docs/citations/ADA055247 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA055247 en eng http://www.dtic.mil/docs/citations/ADA055247 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost Construction Equipment Materials & Supplies Machinery and Tools *CUTTING TOOLS LOADS(FORCES) ROCK ICE TRACTION BALANCE DRIVES POWER BELTS EXCAVATION DRILLING CUTTING EARTH HANDLING EQUIPMENT PERMAFROST SELF PROPELLED SAWS TRENCHING *Continuous belt machines Chain saws Ladder trenchers Boring machines Cutter bars PE62719A WU004 AST42 Text 1978 ftdtic 2016-02-20T13:10:46Z The report deals with forces and power requirements for cutting machines of the belt type, as exemplified by large chain saws and ladder trenchers. The forces of single cutting tools are considered, and related to the overall forces on a cutter bar. Forces are related to power, and sources of loss are identified. Tractive thrust and normal reaction are analyzed and used to assess the traction, weight and balance factors for self-propelled machines. Specific energy consumption and performance index are treated, and concepts of power density and apparent belt pressure are introduced. Requirements for acceleration of cuttings are assessed, and the report concludes with a set of worked examples. (Author) See also Part 6, AD-A045 127. Text Ice permafrost Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Snow Ice and Permafrost Construction Equipment Materials & Supplies Machinery and Tools *CUTTING TOOLS LOADS(FORCES) ROCK ICE TRACTION BALANCE DRIVES POWER BELTS EXCAVATION DRILLING CUTTING EARTH HANDLING EQUIPMENT PERMAFROST SELF PROPELLED SAWS TRENCHING *Continuous belt machines Chain saws Ladder trenchers Boring machines Cutter bars PE62719A WU004 AST42 |
spellingShingle |
Snow Ice and Permafrost Construction Equipment Materials & Supplies Machinery and Tools *CUTTING TOOLS LOADS(FORCES) ROCK ICE TRACTION BALANCE DRIVES POWER BELTS EXCAVATION DRILLING CUTTING EARTH HANDLING EQUIPMENT PERMAFROST SELF PROPELLED SAWS TRENCHING *Continuous belt machines Chain saws Ladder trenchers Boring machines Cutter bars PE62719A WU004 AST42 Mellor,Malcolm Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines |
topic_facet |
Snow Ice and Permafrost Construction Equipment Materials & Supplies Machinery and Tools *CUTTING TOOLS LOADS(FORCES) ROCK ICE TRACTION BALANCE DRIVES POWER BELTS EXCAVATION DRILLING CUTTING EARTH HANDLING EQUIPMENT PERMAFROST SELF PROPELLED SAWS TRENCHING *Continuous belt machines Chain saws Ladder trenchers Boring machines Cutter bars PE62719A WU004 AST42 |
description |
The report deals with forces and power requirements for cutting machines of the belt type, as exemplified by large chain saws and ladder trenchers. The forces of single cutting tools are considered, and related to the overall forces on a cutter bar. Forces are related to power, and sources of loss are identified. Tractive thrust and normal reaction are analyzed and used to assess the traction, weight and balance factors for self-propelled machines. Specific energy consumption and performance index are treated, and concepts of power density and apparent belt pressure are introduced. Requirements for acceleration of cuttings are assessed, and the report concludes with a set of worked examples. (Author) See also Part 6, AD-A045 127. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H |
format |
Text |
author |
Mellor,Malcolm |
author_facet |
Mellor,Malcolm |
author_sort |
Mellor,Malcolm |
title |
Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines |
title_short |
Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines |
title_full |
Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines |
title_fullStr |
Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines |
title_full_unstemmed |
Mechanics of Cutting and Boring. Part 8: Dynamics and Energetics of Continuous Belt Machines |
title_sort |
mechanics of cutting and boring. part 8: dynamics and energetics of continuous belt machines |
publishDate |
1978 |
url |
http://www.dtic.mil/docs/citations/ADA055247 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA055247 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA055247 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766027516837888000 |