Analysis: Basic model of dry friction
Two Frenchmen constructed our basic model of friction. It’s rough and ready but often is useful enough for practical purposes.
With their ideas we can represent friction on Free-Body Diagrams and find forces as required.
This video introduces “coefficient of friction”. Often this is difficult to obtain accurately, but engineers can make allowances for variability.
Talking points
The basic model has a limiting coefficient of static friction and a coefficient of kinetic friction.
- Describe the sequence of events as you push increasingly harder on an object sitting on a rough surface.
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Through Engineers' Eyes - Expanding the Vision: Engineering Mechanics by Experiment, Analysis and Design
Through Engineers' Eyes - Expanding the Vision: Engineering Mechanics by Experiment, Analysis and Design
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