The objective of this study is the investigation of the mechanism responsible
for the squeal vibrations excited when bodies with fairly rough surfaces are rubbed
on a cold dry slightly compacted snow bed. To this end, signals were recorded and
analyzed when the snow surface was rubbed by the ends of baseball bats, the ends
of circular wood rods, and by the thick sole of a rubber boot. It is argued that the
vibration modes are confined in the rubbing bodies and that the role of the snow bed
is limited to providing the right conditions for the stick-slip effect to be applicable at
the rubbing interface. An attempt is made to account for the reported very intense
sound emission from a sheared very cold snow bed in terms of coherent snow granule
column vibrations around the shearing body, as in the case of a sheared singing sand
bed.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:OSUL.10219/2000 |
| Date | 26 June 2013 |
| Creators | Patitsas, Tom |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Preprint |
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