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Research draft

force

vr.tr.force · XCT.QLT

Let an agent handle forces and loads with magnitude, direction, unit and load type, aligned with the lexical force entry.

Thing Registry Cross-cutting context

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle forces and loads with magnitude, direction, unit and load type, aligned with the lexical force entry.

Force as a physical quantity and as loads in engineering: an influence that changes motion or deforms bodies, measured in newtons, including static and dead loads, surface loads and intramolecular forces.

What it is for: Designing structures and machines and explaining motion.

It can be calculate and measure it; classify loads, such as dead and live loads; combine loads, with safety factors; design to resist it.

Distinguishing features

Vector quantity

In engineering, loads are forces acting on structures

Load combinations use safety factors

Aligned with the lexical force entry

What it looks like

Not visible; shown in diagrams and load tables.

Physical character

SI unit: newton N

How it is recognised

Values in N or kN, or loads in kN/m2

Load types such as dead load and static load

Force arrows in diagrams

Related models

is the same quantity as - aligned entries

force (lexical entry)

acts on - structures

building and bridge

is a kind of - vector

physical quantity

relates to - force per area

pressure

In practice

Families and kinds

dead and live loads

static and dynamic loads

surface and point loads

intramolecular and intermolecular forces

Standards and regulation

Eurocode 1 actions on structures

ASCE 7 minimum design loads

Failure modes and hazards

Underestimated loads

Ignoring dynamic effects

Unit confusion

Also called

intramolecular forcejet forcemechanical loadsurface loadstatic loaddead loadstructural loadfloor loadSpecified loadwind loadQuasistatic loadinglift forcemechanical forceforce between two point massesforce between two point chargesresistance forcethermoelectromotive forcecompressive forceCoulomb forcerepulsive forcegravitational forceexternal forceequilibrant forcejuggernautreactive centrifugal forcepressure-gradient forceMaxwell forceelectrostatic pressureLorentz forcecentripetal forcebollard pullbody forcecentral forcesurface forcefictitious forcestictiontidal forceintermolecular forcebite forceAbraham–Lorentz force

+46

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Also registered as vr.tr.force-2

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Quantity Magnitude and direction.

Forces are vectors.

Value

Newtons.

Value

Magnitude and unit.

  1. What is the magnitude, in newtons? measurement
  2. In which direction? definition

Type

Load type.

Load type

Kind of load.

  1. Is it a dead, live, wind or other load? definition
  2. Is it static or dynamic? definition
Design Resisting loads.

Design must resist loads with margin.

Combination

Load combinations.

Combinations

Load combinations.

  1. Which load combinations apply, with which factors? provenance
  2. Which code? provenance

Capacity

Resistance.

Capacity

Structural capacity.

  1. Can the member resist the design load? measurement
  2. What is the utilisation? measurement
Measurement Measuring forces.

Measurements verify designs.

Instrument

Load cells.

Instrument

Instrument.

  1. How was the force measured? provenance
  2. Is the instrument calibrated? provenance

Monitoring

Structural monitoring.

Monitoring

Monitoring.

  1. Is the structure monitored for loads? definition
  2. What thresholds trigger action? boundary
Safety Overload.

Overload causes failure.

Overload

Exceeding limits.

Overload

Overload risk.

  1. Could the load exceed design limits? boundary
  2. What happens then? boundary

Signage

Load limits.

Load limits

Posted limits.

  1. Are load limits posted, such as on floors or bridges? boundary
  2. Are they respected? boundary

What the second pass must settle

  • How should the Wikidata and lexical force entries be merged or linked?
  • Should load types be separate entries?
  • How should load combinations be represented?
Draft as JSON