This table includes discussion summaries and lecture notes for the first 6 sessions. From session #7 on, class discussion focused on individual student projects.
Discussion: Might the natural frequencies of karabiner gates and ropes match under certain circumstances that would cause the karabiner gate to be open during fall arrest?
|Summary of In-class Derivation (PDF)|
|2||Open Questions in Rock Climbing||Presentation (PDF)|
|3||Discussion of karabiner-rope Coupling||Summary of Discussion (PDF)|
|4||Rope Behavior||Presentation (PDF)|
Three student projects defined:
- Measurement of karabiner gate opening due to oscillation, both in-vitro (say glued to a speaker cone) and in-vivo (in a drop test).
Measured the frequency of rope oscillation.
Measured the spring constant of a karabiner and came up with an estimate for the oscillation frequency of the gate (~25 Hz).
Marked nylon and tried to see if any changes were observable under a light microscope ~100x magnification. No changes were readily apparent.
|Rope Oscillation Experiment (PDF)|