Call number:
ZSP-201-89/14
In:
CRREL Report, 89-14
Description / Table of Contents:
The effects of runner material and surface conditions on the friction between runners and ice were studied. A model sled was pushed over a 6-m-long ice sheet and the reduction of speed of the sliding sled was measured. The friction calculated by the reduction of speed between two gates indicated that smooth runners showed lower friction at around -1°C than at around -10°C, as expected, but the friction of rough runners showed little temperature dependence. The lower thermally conductive runners showed lower friction than higher thermally conductive smooth runners as the theory predicted, but such effects were obscured on rougher runners.
Type of Medium:
Series available for loan
Pages:
iii, 23 Seiten
,
Illustrationen
Series Statement:
CRREL Report 89-14
URL:
https://apps.dtic.mil/docs/citations/ADA211498
URL:
https://hdl.handle.net/11681/9087
Language:
English
Note:
CONTENTS
Preface
Introduction
Apparatus and procedures
General approach
Sled design
Sled propulsion
Ice sheet preparation
Experimental procedure
Results
General remarks
Effect of runner temperature
Effect of runner surface
Effect of ice surface conditions
Effect of velocity
Effect of runner materials
Observations of replicate surfaces
Statistical analysis
Discussion
Molecular interactions
Mechanical deformations
Thermal energy dissipation
Hydrodynamidc processes
Comparison of energy loss mechanisms
Summary and conclusions
Literature cited
Location:
AWI Archive
Branch Library:
AWI Library
