Wire rope improvement program. Final report. [For draglines]
Activities in five major areas were undertaken during the WRIP: experiments using PNL-developed bend-over-sheave fatigue test machines to generate data on which to base a model for predicting large-diameter rope performance from that of small-diameter ropes; bend-over-sheave fatigue testing to determine differences in rope failure rates at varying rope loads; analyses to determine how wire ropes actually fail; development of a load sensor to record and quantity operational loads on drag and hoist ropes; and technology transfer activities to disseminate useful program findings to coal mine operators. Data obtained during the 6-year program support are included. High loads on wire ropes are damaging. As an adjunct, however, potentially useful countermeasures to high loads were identified. Large-diameter rope bend-over-sheave performance can be predicted from small-diameter rope test behavior, over some ranges.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6120963
- Report Number(s):
- PNL-3976; ON: DE82001874
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
012000 -- Coal
Lignite
& Peat-- Mining
42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
CABLES
COAL MINING
EQUIPMENT
FAILURES
FATIGUE
HOISTS
MATERIALS HANDLING EQUIPMENT
MECHANICAL PROPERTIES
MINING
PERFORMANCE
ROPES
SERVICE LIFE
SURFACE MINING
TECHNOLOGY TRANSFER
WIRES