Even though the elastic deformations that occur during the
impact of colliding bodies may be small in comparison to their actual
dimensions, they play an important role in mechanical collisions.
During the time the bodies are in contact, elastic, friction, and inertia
properties combine to produce a complex variation of sliding and
sticking throughout the contact surface. Detailed analysis of this
interaction is quite tedious, but would seem to be necessary for
accurately predicting the impulse and velocity changes that occur
during contact. However, a considerably-simplified model captures
the essential characteristics of the elastic-friction interaction during
contact, leading to predictions of impulse and velocity changes that
agree well with those of more detailed analyses of a number of
different collisions.
The model's simplicity enables an examination of parameters
that affect a general class of collisions. For planar collisions, the
model contains five dimensionless parameters; the effects of four of
these on the rebound velocity are examined here.
In addition, comparisons are made with a previously-used,
somewhat simpler model, which neglects the tangential compliance in
the region of contact. / Graduation date: 1993
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/35770 |
| Date | 13 May 1992 |
| Creators | Aum, Ho Sung |
| Contributors | Smith, Charles E. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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