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Published

resistance

vr.tr.resistance-2 · thing-resistance-2

Let an agent handle mechanical resistance by type, coefficients, effects and control, separate from electrical resistance and political resistance.

Thing Registry Physical world and living systems PHY.FLW

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Type Which resistance.

Kind

Friction, drag.

Kind

Resistance type.

  1. Which kind of mechanical resistance is involved? definition
  2. Between which bodies or media? definition

Coefficient

Magnitude.

Coefficient

Coefficient.

  1. What is the friction or drag coefficient? measurement
  2. From which test or data source? provenance
Effects Heat and wear.

Energy

Losses.

Energy

Energy loss.

  1. How much energy is lost to resistance? measurement
  2. How can it be reduced? action

Wear

Abrasion.

Wear

Wear.

  1. How fast are surfaces wearing? measurement
  2. What is the wear mechanism? definition
Design Control.

Reduce

Lubrication and shape.

Reduce

Reduction.

  1. Which lubricant or design reduces friction or drag? action
  2. What trade-offs arise? boundary

Use

Brakes and grip.

Use

Useful friction.

  1. Is enough friction available for braking or grip? boundary
  2. How is it tested? provenance
Safety Slips and brakes.

Slips

Surfaces.

Slips

Slip resistance.

  1. Is the floor slip-resistant enough? boundary
  2. Which test method applies? provenance

Senses

Disambiguation.

Senses

Other senses.

  1. Is electrical, biological or political resistance meant? boundary
  2. 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

  1. Open English WordNet 2024, synset oewn-11524062-n - sense and gloss of the concept
  2. 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