machine
a device for overcoming resistance at one point by applying force at some other point
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.
recalled by Codex without web access - no source was read
Researched by: Codex
Purpose and description
Enable an agent to recognise a machine by how it transfers force to overcome resistance, assess its operating condition, and determine which operations its configuration and evidence support.
A machine is a mechanical device that transmits or transforms an applied force and associated motion to overcome resistance at another point, without increasing the total energy supplied to it.
It can be Trace applied effort through the mechanism to the resistance and supporting reactions.; Estimate required input effort and resulting movement from a documented configuration.; Compare a proposed load and motion with the evidenced operating envelope.; Select an admissible configuration or operating sequence when its preconditions are satisfied.; Identify inspection and maintenance needs from wear, losses and abnormal motion.; Determine the isolation, restraint and verification steps required before mechanical intervention..
Distinguishing features
An identifiable mechanical path connects force applied at an input with resistance overcome at an output; a device that only senses or displays information does not satisfy this definition.
The arrangement redirects or transmits force and constrains relative movement; merely bearing a static load does not establish that a structure is a machine.
External electrical power and automation are not required: manually driven simple machines can satisfy the registry definition.
A tool can also be a machine when its arrangement provides the required input-to-output force relationship; hand-held use does not exclude it.
The registry kind describes the operating relationship, while a manufacturer's model designation and a physical unit's serial number identify different levels.
Scope
+ Input, transmission and output relationships that connect applied force to resistance
+ Mechanical arrangement, constraints, supports and reaction forces
+ Mechanical advantage, displacement trade-offs, losses and operating limits
+ Manual or powered operation, control arrangements and stored-energy states
+ Wear, failure modes, protective measures and conditions for intervention
- Product-line identity, commercial variants and procurement records owned by product models
- Individual-unit ownership, location and service history owned by asset models
- Detailed properties of constituent materials owned by material models
- Independent models of motors, controllers and other component kinds
- Production workflows, operator qualifications and organisational authorisations
Characteristics
- Mechanical task
- lifting; pressing; pulling; cutting; positioning; transmitting motion; other specified task Identifies the resistance the machine is intended to overcome and the useful output.
- Mechanical arrangement
- lever; wheel and axle; pulley; inclined plane; wedge; screw; compound or other specified mechanism Connects recognition of the machine to an explainable force-transfer principle.
- Input and output interfaces
- Force application point or axis → transmission path → load application point or axis Makes the registry definition testable and establishes the machine boundary.
- Drive source
- human; animal; electric; hydraulic; pneumatic; combustion; gravity; stored mechanical energy; other; multiple Determines how effort enters the machine and which energy sources require control.
- Input and output effort
- Force in N or torque in N·m, with direction, interface and operating condition Relates the supplied effort to the resistance and distinguishes useful output from overload.
- Travel and speed
- Linear travel in m and speed in m/s; angular travel in rad and speed in rad/s Records the movement exchanged for output effort and the limits of useful motion.
- Mechanical advantage
- Dimensionless output-force/input-force ratio at stated interfaces and configuration; identify ideal or measured value Describes force multiplication without treating it as energy multiplication or mixing force with torque.
- Mechanical efficiency
- Useful output work/input work, dimensionless or %, over a stated cycle or interval Makes friction and other losses explicit when estimating achievable output.
- Operating envelope
- Applicable limits for load, torque, speed, travel, duty cycle and temperature, each with units and evidence Provides the conditions against which an intended operation can be assessed.
- Motion and energy condition
- Motion: stationary or moving; supply: connected or isolated; stored energy: present, restrained, dissipated or unknown Prevents stationary or switched-off equipment from being mistaken for equipment safe to approach.
- Mechanical integrity
- Within documented limits; degraded; failed; unassessed Connects wear, damage and inspection evidence to continued use or withdrawal.
Analytical facets
- substance
- material
- origin
- manufactured
- agency
- operable
- mobility
- portable
- scale
- handheld
- affordances
- graspable, operable
Also called
+53
Where this came from
oewn:2024 · CC BY 4.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 6 bundles · 11 layers · 15 findings · 27 questions.
Force-transfer identity Establishes what makes the registered thing a machine and where its mechanical function begins and ends.
Recognition must depend on the input-to-resistance relationship rather than appearance, automation or a product label.
Effort and resistance
Identifies the mechanical input and the useful load interaction.
Input-output relationship
Record the applied effort, the resistance and the mechanical connection between their interfaces.
- Where is input force or torque applied, and where does the machine act against resistance? definition
- What counts as useful output for the stated task, and what movement or deformation demonstrates it? measurement
Machine boundary
Separates the machine from its drive, workpiece, supports and neighbouring registry concepts.
Included mechanism
Record which connected parts constitute the machine for this account and which provide external inputs or constraints.
- Are the drive, base, attachments and load included in the machine boundary or related as external things? boundary
- Which force-transfer feature establishes machine status, including when the same thing is also called a tool? definition
Mechanism and constraints Describes how geometry, connections and supports determine force and movement.
A machine's behaviour depends on its arrangement and constraints, not simply its list of components.
Motion transmission
Captures the mechanism connecting input motion to output motion.
Kinematic relationship
Record the motion path, relevant geometry and configuration-dependent transmission relationship.
- Which levers, gears, pulleys, screws, sliding contacts or other mechanisms transmit the input? definition
- How do input and output displacement, direction and speed relate across the usable travel? measurement
Reactions and restraints
Identifies the constraints that make the intended force transfer possible.
Reaction load path
Record how pivots, bearings, frames, anchors and contact surfaces carry reaction forces.
- Which supports or contacts carry reactions, and which must remain fixed, aligned or engaged? boundary
- What installation or setup checks establish that those constraints can sustain the intended operation? action
Effort, performance and limits Relates effort and movement to achievable output within an evidenced operating envelope.
An agent needs to distinguish theoretical advantage, actual performance and permissible loading.
Mechanical exchange
Accounts for force or torque transformation, movement trade-offs and energy losses.
Advantage and losses
Record ideal and observed transmission performance with explicit interfaces and measurement conditions.
- What force ratio or torque ratio applies at the stated configuration, and how was it calculated or measured? measurement
- How much input work becomes useful output work over the same interval, accounting for changes in stored energy? measurement
Admissible loading
Defines the supported combinations of load, speed, travel and duration.
Operating-envelope evidence
Record limits together with their configuration, conditions and documentary or test basis.
- Which load, speed, travel and duty-cycle combinations are permitted, and which proposed combinations remain unassessed? action
- Which manufacturer document, engineering assessment or test establishes each limit for the relevant configuration? provenance
Operation and energy control Captures how motion starts, changes and stops, including energy that remains after stopping.
Machines may move through manual effort, external power, inertia or stored energy, so command state alone is insufficient.
Operating transitions
Describes available controls or manual actions and their mechanical effects.
Start, stop and reversal
Record how engagement, input application, stopping and reversal affect the load and mechanism.
- Which manual actions or controls start, engage, stop or reverse the mechanism, and what preconditions apply? action
- What happens to motion and load support when input effort or external power is removed? definition
Hazardous energy
Accounts for inertia, suspended loads, springs, pressure and other sources of unintended movement.
Intervention preconditions
Record energy sources, accessible mechanical hazards and the verified conditions needed for intervention.
- Which parts can continue moving, back-drive, fall or release stored energy after an apparent stop? definition
- What isolation, blocking, dissipation and verification steps are required before clearing a jam or entering the mechanism? action
- Which guards, interlocks or other protective measures apply, and what evidence supports their required condition? provenance
Degradation and return to service Connects mechanical deterioration with inspection, repair and renewed operating eligibility.
Wear can change force transmission, load retention and stopping behaviour before a machine ceases to function.
Failure and condition
Identifies deterioration in the machine's load path and moving interfaces.
Mechanical degradation indicators
Record applicable failure modes and observable evidence such as backlash, slip, cracking or abnormal friction.
- Which failure modes could interrupt force transfer, release the load or cause unintended motion in this mechanism? definition
- Which observations or measurements distinguish acceptable wear from a condition requiring withdrawal? measurement
Maintenance and verification
Defines evidence needed to maintain or restore the intended mechanical behaviour.
Service acceptance
Record applicable lubrication, adjustment, replacement and post-intervention acceptance requirements.
- Which maintenance actions and consumables are required for the mechanism, and what conditions trigger them? action
- What checks establish acceptable force transfer, load retention and stopping behaviour after repair or adjustment? action
- Which instructions or applicable standards, identified by issuer and edition, establish these acceptance requirements? provenance
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- The requested sense is the classical mechanics sense; the six listed kinds are the conventional simple machines, not an exhaustive taxonomy of modern machinery.
- Force multiplication is accompanied by a displacement trade-off; friction and other losses reduce useful output work relative to input work.
- There is no useful class-wide range for capacity, dimensions or operating speed, and applicable identifiers and safety requirements depend on the particular machine and use.
- Which of these check these first hold for the sense of machine this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Lever
- Wheel and axle
- Pulley
- Inclined plane
- Wedge
- Screw
- Which of these kinds and varieties hold for the sense of machine this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Lifting loads with levers, pulleys or screw jacks
- Moving loads to a higher elevation using ramps
- Splitting or cutting materials using wedges
- Transmitting force and motion through wheels and axles
- Clamping components using screw mechanisms
- Which of these real-world use hold for the sense of machine this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Overloading can bend, fracture or buckle load-bearing components.
- Wear, poor lubrication or contamination can increase friction and cause seizure.
- Slipping loads, failed supports or unintended reverse motion can release a load.
- Moving components can create pinch, crush, shear or entanglement hazards.
- Stored elastic energy or raised loads can cause unexpected movement when restraints are released.
- Which of these failure modes and hazards hold for the sense of machine this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- mechanism - A mechanism is an arrangement that constrains or transmits motion; a machine in this sense uses force and motion to overcome resistance.
- tool - A tool is an implement used to perform a task; tools such as wedges and levers also qualify as machines, but the terms classify objects by different criteria.
- engine - An engine converts an energy supply into mechanical output; a machine in this sense may simply transmit force supplied by a person or another device.
- compound machine - A compound machine combines multiple simple machines into an interacting assembly.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of machine this model covers, and on what evidence? provenance
What the second pass must settle
- Does the registry explicitly include all conventional simple machines, including fixed inclined planes and wedges, within this entry?
- Which existing Vercy models already own overlapping concepts such as tool, mechanism, engine and powered machinery, and should this entry link to any of them?
- How should the model represent machines whose load interaction is distributed through fluid flow rather than concentrated at a discrete output point?
- Which machine subclasses, intended uses and jurisdictions determine applicable standards or certification requirements?
- Which characteristics can receive meaningful kind-level ranges, and which require a specified mechanism, product configuration or measured unit?