Friction in gem-gum technology - Revision history

Apm: Category:Surprising facts

2026-03-29T20:35:24Z

← Older revision		Revision as of 22:35, 29 March 2026
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	* [https://pubs.rsc.org/en/content/articlehtml/2017/me/c7me00021a 2017 Evaluating the Friction of Rotary Joints in Molecular Machines] <br>[https://arxiv.org/abs/1701.08202 (arxiv)]		* [https://pubs.rsc.org/en/content/articlehtml/2017/me/c7me00021a 2017 Evaluating the Friction of Rotary Joints in Molecular Machines] <br>[https://arxiv.org/abs/1701.08202 (arxiv)]

			[[Category:Surprising facts]]

	= References =		= References =

	<references/>		<references/>

Apm: /* External links */

2026-01-17T19:11:12Z

External links

← Older revision		Revision as of 21:11, 17 January 2026
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	* https://sci-nanotech.com/index.php?thread/43-a-closer-look-at-friction-in-cog-gear-style-stiff-nanomachinery/		* https://sci-nanotech.com/index.php?thread/43-a-closer-look-at-friction-in-cog-gear-style-stiff-nanomachinery/
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	* [https://~~arxiv~~.org/~~abs~~/~~1701.08202~~ 2017 Evaluating the Friction of Rotary Joints in Molecular Machines]		* [https://pubs.rsc.org/en/content/articlehtml/2017/me/c7me00021a 2017 Evaluating the Friction of Rotary Joints in Molecular Machines] <br>[https://arxiv.org/abs/1701.08202 (arxiv)]

	= References =		= References =

	<references/>		<references/>

Apm: /* External links */

2026-01-17T19:10:34Z

External links

← Older revision		Revision as of 21:10, 17 January 2026
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	* https://sci-nanotech.com/index.php?thread/43-a-closer-look-at-friction-in-cog-gear-style-stiff-nanomachinery/		* https://sci-nanotech.com/index.php?thread/43-a-closer-look-at-friction-in-cog-gear-style-stiff-nanomachinery/
			----
			* [https://arxiv.org/abs/1701.08202 2017 Evaluating the Friction of Rotary Joints in Molecular Machines]

	= References =		= References =

	<references/>		<references/>

Apm: added chart on superlubric friction

2025-10-30T13:48:11Z

added chart on superlubric friction

← Older revision		Revision as of 15:48, 30 October 2025
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	{{wikitodo\|This page needs major cleanup - several parts need to be merged and completed and factored out}} <br>		{{wikitodo\|This page needs major cleanup - several parts need to be merged and completed and factored out}} <br>
			[[File:Superlubricity scaling chart.png\|800px\|thumb\|right\|Double logarithmic chart of several estimations for [[superlubricity\|superlubric friction]] and its quadratic scaling. Note that at moderate speeds like 1m/s it is actually quite high but it quickly drops off going to lower (proposed) speeds around ~1mm/s. The black line (way higher up than all the others) is not superlubric friction but dynamic friction in fluids for comparison. '''This does not cover [[reciprocative dissipation mechanism]]s modes''' which can be significant and can't be co-plotted without a number of (at this point in 2025 still too difficult to pin down) assumptions.]]
	Up: [[Friction]]		Up: [[Friction]]

Apm: /* External links */

2024-10-06T14:21:07Z

External links

← Older revision		Revision as of 16:21, 6 October 2024
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	* Wikipedia: [https://en.wikipedia.org/wiki/Rotational%E2%80%93vibrational_spectroscopy Rotational–vibrational spectroscopy]		* Wikipedia: [https://en.wikipedia.org/wiki/Rotational%E2%80%93vibrational_spectroscopy Rotational–vibrational spectroscopy]
	* Wikipedia: [https://en.wikipedia.org/wiki/Infrared_spectroscopy Infrared spectroscopy] & [https://en.wikipedia.org/wiki/Thermal_infrared_spectroscopy Thermal infrared spectroscopy]		* Wikipedia: [https://en.wikipedia.org/wiki/Infrared_spectroscopy Infrared spectroscopy] & [https://en.wikipedia.org/wiki/Thermal_infrared_spectroscopy Thermal infrared spectroscopy]
			----
			* https://sci-nanotech.com/index.php?thread/43-a-closer-look-at-friction-in-cog-gear-style-stiff-nanomachinery/

	= References =		= References =

	<references/>		<references/>

Apm: /* Main sources of friction and countermeasures */ added link to Reciprocative friction in gem-gum technology

2023-11-19T10:47:20Z

Main sources of friction and countermeasures: added link to Reciprocative friction in gem-gum technology

← Older revision		Revision as of 12:47, 19 November 2023
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	* (1) band-stiffness scattering drag and		* (1) band-stiffness scattering drag and
	* (2) shear-reflection drag		* (2) shear-reflection drag
	Source: [[Nanosystems]] 10.4.6. Mechanisms of Energy dissipation f. Summary		Source: [[Nanosystems]] 10.4.6. Mechanisms of Energy dissipation f. Summary <br>
			{{todo\|find and add an intuitively comprehensible explanation for these two [[phonon interaction based dissipation mechanisms]]}}

	~~{{todo\|find and add an intuitively comprehensible explanation for these two~~ [[~~phonon interaction based dissipation mechanisms~~]]}}		Furthermore there are energy dissipation mechanisms that are specific to reciprocative motion. <br>
			'''See page: [[Reciprocative friction in gem-gum technology]]'''

	== Tuning for superlubricity against band-stiffness scattering drag ==		== Tuning for superlubricity against band-stiffness scattering drag ==

Apm: /* Related / added Wear

2023-03-16T13:00:38Z

Related: added * Wear

← Older revision		Revision as of 15:00, 16 March 2023
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	* [[Losses from mechanochemical reactions]]		* [[Losses from mechanochemical reactions]]
			----
			* '''[[Wear]]'''

	== External links ==		== External links ==

Apm: /* Related */ added Losses from mechanochemical reactions

2022-10-17T18:38:04Z

← Older revision		Revision as of 20:38, 17 October 2022
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	[[Nanosystems]] – Chapter 7 – Energy Dissipation – (page 161 to 190)		[[Nanosystems]] – Chapter 7 – Energy Dissipation – (page 161 to 190)
			----
			* [[Losses from mechanochemical reactions]]

	== External links ==		== External links ==

Apm: /* Related */ '''Mesoscale friction'''

2022-08-30T15:30:18Z

Related: '''Mesoscale friction'''

← Older revision		Revision as of 17:30, 30 August 2022
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	* [[How friction diminishes at the nanoscale]]		* [[How friction diminishes at the nanoscale]]
	* [[Atomically precise bearings]] – especially [[Atomically precise slide bearing]]s		* [[Atomically precise bearings]] – especially [[Atomically precise slide bearing]]s
			* '''[[Mesoscale friction]]'''

	[[Nanosystems]] – Chapter 7 – Energy Dissipation – (page 161 to 190)		[[Nanosystems]] – Chapter 7 – Energy Dissipation – (page 161 to 190)

Apm: /* Cranking up "compenslow" to reduce friction overall */ expanded an innocent looking side-note to a section – matching its importance

2022-08-11T13:07:37Z

Cranking up "compenslow" to reduce friction overall: expanded an innocent looking side-note to a section – matching its importance

← Older revision		Revision as of 15:07, 11 August 2022
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	'''Increasing compenslow can reduce losses from friction by many orders of magnitude.''' <br>		'''Increasing compenslow can reduce losses from friction by many orders of magnitude.''' <br>
	~~<small>~~At some point friction from fast transport motions ~~should become~~ relevant.<br>
	Only the assembly motions are slowed down but ~~these nake~~ up most of the distance the robotics travels.<~~/small~~>		=== Limits to optimization by increase of "compenslow" ===

			At some point friction from fast transport motions becomes relevant.<br>
			Only the assembly motions are slowed down but assembly motions make up most of the distance the robotics travels. <br>
			Once transport motions get similar in length to the assembly motions. Increasing compenslow is no longer a viable optimization option.

			Also:
			* the more parts are assembled per [[assembly cycle]] across an [[assembly level]]
			* the more there is potential for reduction of friction by increase of compenslow across that assembly level

	== Don't over-optimize friction way below mechanochemical losses ==		== Don't over-optimize friction way below mechanochemical losses ==

Friction in gem-gum technology - Revision history

Apm: Category:Surprising facts

Apm: /* External links */

Apm: /* External links */

Apm: added chart on superlubric friction

Apm: /* External links */

Apm: /* Main sources of friction and countermeasures */ added link to Reciprocative friction in gem-gum technology

Apm: /* Related */ added * Wear

Apm: /* Related */ added Losses from mechanochemical reactions

Apm: /* Related */ '''Mesoscale friction'''

Apm: /* Cranking up "compenslow" to reduce friction overall */ expanded an innocent looking side-note to a section – matching its importance

Apm: /* Related / added Wear