Reciprocative friction in gem-gum technology
One may also want to call this more fancily "reciprocative energy dissipation".
This applies to any reciprocative motion both linear reciprocative and rotative reciprocative.
Essence is back and forth motion that requires accelerations and jerk.
Note that:
– in factory style there is much less reciprocative motion than in more general purpose kind of robotics akin to 3D printers.
– at least one more highly relevant thing …
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Contents
Mechanisms
Akhiezer damping
Physics
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Symbolic math
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Qunatitative example numbers
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Scaling & limits of model
Specifics to diamond (compared to metals or doped silicon).
It seems as if the the absence of dense electronic states in undoped diamond should reduce electron-phonon-coupling significantly. If so then by how much?
Having large amplitudes corresponds to many phonons bosonically overlapping in a few closeby modes.
Multi phonon processes may start to matter.
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Non recuperated phase shift
In some but not all cases this could be partially recuperated.
Physics
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Symbolic math
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Qunatitative example numbers
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Scaling & limits of model
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Accidental heatpump
See page: Accidental heatpump
Symbolic math
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Qunatitative example numbers
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Scaling & limits of model
It seems this should scale linearly over a very very wide range of speeds. Including proposed ~1mm/s scale.
Nontrivial things might happen near absolute zero where phonon modes freeze out.
Especially for diamond.
