resistance
Let an agent handle mechanical resistance by type, coefficients, effects and control, separate from electrical resistance and political resistance.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Type Which resistance.
Kind
Friction, drag.
Kind
Resistance type.
- Which kind of mechanical resistance is involved? definition
- Between which bodies or media? definition
Coefficient
Magnitude.
Coefficient
Coefficient.
- What is the friction or drag coefficient? measurement
- From which test or data source? provenance
Effects Heat and wear.
Energy
Losses.
Energy
Energy loss.
- How much energy is lost to resistance? measurement
- How can it be reduced? action
Wear
Abrasion.
Wear
Wear.
- How fast are surfaces wearing? measurement
- What is the wear mechanism? definition
Design Control.
Reduce
Lubrication and shape.
Reduce
Reduction.
- Which lubricant or design reduces friction or drag? action
- What trade-offs arise? boundary
Use
Brakes and grip.
Use
Useful friction.
- Is enough friction available for braking or grip? boundary
- How is it tested? provenance
Safety Slips and brakes.
Slips
Surfaces.
Slips
Slip resistance.
- Is the floor slip-resistant enough? boundary
- Which test method applies? provenance
Senses
Disambiguation.
Senses
Other senses.
- Is electrical, biological or political resistance meant? boundary
- Which entry fits? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- noun.phenomenon
- Plane
- PHY
- Domain
- PHY.FLW
- Facets: substance
- energy
- Facets: origin
- natural
- Facets: agency
- inert
- Facets: mobility
- not-applicable
- Facets: scale
- not-applicable
- Facets: affordances
- observable
- Other names and narrower kinds
- friction, rubbing, grinding, abrasion, attrition, detrition, grip, traction, adhesive friction, acoustic resistance, acoustic impedance, acoustic reactance
What it is Filled
Any mechanical force that tends to retard or oppose motion, such as friction between surfaces, drag in fluids and rolling resistance; related processes include rubbing, abrasion and attrition.
Why it exists Filled
Let an agent handle mechanical resistance by type, coefficients, effects and control, separate from electrical resistance and political resistance.
Distinguishing features Filled
- Opposes motion
- Converts energy to heat
- Causes wear
- Electrical resistance is a different quantity
What robots and AI may and may not do Filled
Must not
- Remove or disable brakes or friction devices that people rely on to stop motion.
- Report a friction or drag value as measured when it was estimated.
- Ignore heat from friction near flammable materials.
Only with a human decision
- Changing braking or friction components on vehicles and machines.
May
- Calculate friction, drag and rolling resistance from given data, stating assumptions.
- Monitor resistance in machines it is authorized to check and report wear.
Moral aspects Filled
- Friction is what lets vehicles stop and people walk safely.
- Reducing drag and friction saves energy and emissions.
Who is affected
- Road and machine users
- Maintenance workers
Owners Filled
Steward
Nobody: a physical phenomenon held in common.
Links to other meta-models Filled
parent
- oewn-11501098-n - registry parent class
related
- force - category
- friction - kind
- wear and heat - effects
- electrical resistance - another sense
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.resistance-2
- Open English WordNet: oewn-11524062-n
Direct properties required Filled
- friction coefficient (rubber on dry asphalt): about 0.7-1.0 dimensionless
- friction coefficient (steel on steel, lubricated): about 0.05-0.2 dimensionless
Recognition required Filled
- Friction between surfaces
- Drag on moving objects in air or water
- Wear marks from abrasion
- Not visible directly; seen as slowing, heating and wear.
Capabilities and actions required Filled
- measure friction coefficients
- reduce drag and wear
- design brakes and grip
- lubricate surfaces
Hazards and failure modes required Filled
- Brake fade from overheating
- Slips on low-friction surfaces
- Excessive wear
Standards and interfaces required Filled
- ASTM G99 and G115 friction and wear testing
- Tyre labelling for rolling resistance (EU 2020/740)
Context of use required Filled
- Explaining energy loss, wear, braking and grip.
- static and kinetic friction
- rolling resistance
- fluid drag
- abrasion and attrition
Sources Filled
- Open English WordNet 2024, synset oewn-11524062-n - sense and gloss of the concept
- Wiktionary: resistance - word senses and usage
Open questions
- Should friction and drag be separate entries?
- How should coefficient data be linked?
- How should other senses be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-resistance-2/spec.json