RRL EXPERIMENTS
THE SHAPE AND SURFACE FINISH OF THE BLADE ARE TWO OF THE MAIN FACTORS CONSIDERED IN RESEARCH TO IMPROVE THE PERFORMANCE OF FIXED-BLADE PLOUGHS. A PAPER PREPARED AT THE ROAD RESEARCH LABORATORY, HARMONDSWORTH, PRESENTS A THEORETICAL TREATMENT OF THE SUBJECT. FIELD TRIALS CONFIRMED TEST CONCLUSIONS THAT A CHANGE IN SHAPE COULD PRODUCE A 25 TO 30 PER CENT REDUCTION IN THE DRAUGHT OF CONVENTIONAL BLADES, AND A FURTHER REDUCTION OF SIMILAR EXTENT WAS POSSIBLE BY COATING THE BLADE WITH A LOW FRICTION MATERIAL SUCH AS PTFE. MAXIMUM CAST BOW-ANGLES ARE OF THE ORDER OF 110 DEG. SLIGHTLY HIGHER VALUES THAN THIS ARE REQUIRED FOR MAXIMUM CAST WITH MINIMUM POWER, AND SLIGHTLY LOWER VALUES WOULD GIVE MAXIMUM CAST FOR MINIMUM SPEED. /RRL/
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Supplemental Notes:
- Vol 143, No 26, PP 1375-1376, 1 FIG, 2 PHOT, 3 REF
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Authors:
- Price, W I
- Publication Date: 1966-7
Media Info
- Serial:
Subject/Index Terms
- TRT Terms: Blades (Machinery); Coatings; Experiments; Improvements; Performance; Performance tests; Power; Seal coats; Shape; Snowplows; Speed
- Old TRIS Terms: Shape factor
- Subject Areas: Energy; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 00219255
- Record Type: Publication
- Source Agency: Road Research Laboratory /UK
- Files: TRIS
- Created Date: Dec 12 1994 12:00AM