MECHANICS OF CUTTING AND BORING--PART 8: DYNAMICS AND ENERGETICS OF CONTINUOUS BELT MECHANICS

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/

• Corporate Authors:

  U.S. Army Cold Regions Research and Engineering Laboratory

  72 Lyme Road
  Hanover, NH  United States  03755-1290
• Authors:
  • Mellor, M
• Publication Date: 1978-4

Media Info

• Features: Figures;
• Pagination: 24 p.

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Boring; Density; Dissipation; Excavating equipment; Force; Manual safety belts; Pile driving; Power; Pressure; Sawing; Tractive forces; Tunneling machines; Weight
• Uncontrolled Terms: Balancing
• Old TRIS Terms: Belts; Energy loss /pile driving/
• Subject Areas: Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00179724
• Record Type: Publication
• Report/Paper Numbers: CRREL Report 78-11
• Files: TRIS
• Created Date: Oct 12 1978 12:00AM