The Simulations Library
Every simulation on the site in one place. Pick a subject, narrow it to a topic, then choose how you want to work with it — watch a concept, run a virtual lab, read an instrument, build a circuit or size a part.
- 149 simulations
- 12 subjects
- 55 topics
Nothing matches all of these at once.
Remove a filter above, try a broader word, or start again.
Simulations by course
Starting points for the courses these simulations are used in most.
High-school physics simulations
Forces, motion, energy, light, pressure and electricity, the core of a school physics course.
Chemistry simulations
Atoms and bonding, balancing equations, acids and bases, gases and electrochemistry.
Engineering mechanics & strength of materials
Statics, trusses, beams, stress, buckling and the tensile test, the first year of an engineering degree.
Fluid mechanics & thermodynamics
Bernoulli, pipe flow, aerodynamics, power and refrigeration cycles, and heat transfer.
Electrical engineering & electronics
DC and AC circuits, machines and transformers, digital logic and PLC programming.
Workshop & vocational trade training
Reading instruments, machining, CNC, threads, fluid power and house wiring for technical and vocational courses.
Every simulation, by subject and topic
The full index. Open a subject to see its topics; a simulation that belongs to several topics is listed under each.
Mechanics & Motion
17
Forces & equilibrium
- Free Body Diagram & Force Resolver
- Friction & Contact Forces
- Hooke’s Law Simulator
- Newton’s Laws of Motion
- Simple Machines
- Torque & Rotation
Motion & gravity
Momentum & energy
Rotation
Oscillations
Mechanisms & Machines
18
Linkages
Cams & indexing
Gears & drives
- Belt & Chain Drive
- Gear Strength Simulator
- Gear Train Calculator
- Gearbox Simulator
- Planetary Gear Simulator
Bearings
Flywheels & governors
IC engines
Strength & Materials
34
Beams, columns & sections
- Beam Bending — SFD & BMD
- Column Buckling Simulator
- Moment of Inertia — Simulation Trainer
- Moment of Inertia of a Channel Section
- Moment of Inertia of a Circle
- Moment of Inertia of a Hollow Circle
- Moment of Inertia of a Hollow Rectangle
- Moment of Inertia of a Rectangle
- Moment of Inertia of a T-Section
- Moment of Inertia of an Angle Section
- Moment of Inertia of an I-Beam
Trusses & frames
Stress analysis
Torsion
Material testing
- Fatigue Testing Virtual Lab
- Hardness Testing Simulator
- Impact Testing Virtual Lab
- Stress-Strain Diagram
- Torsion Testing Machine
- UTM Virtual Lab
Fatigue & fracture
- Crack Propagation & Critical Crack Length
- Fatigue Life Simulator
- Fatigue Testing Virtual Lab
- Impact Testing Virtual Lab
- Stress Concentration (Kt) Simulator
Joints & fasteners
- Bolted Joint Design
- Power Screw Calculator
- Rivet Joint Designer
- Riveted Joints Trainer
- Weld Strength Calculator
Springs
Materials structure
Fluid Mechanics
13
Fluid properties & statics
Pipe & channel flow
- Bernoulli’s Principle
- Continuity Equation
- Fluid Flow in Pipes
- Orifice & Coefficient of Discharge
- Reynolds Number
Aerodynamics
Pumps & turbines
Heat & Thermodynamics
18
Gas laws
Heat & temperature
- Phase Change & Latent Heat
- Specific Heat Capacity
- Thermal Expansion Calculator
- Thermocouple & Seebeck Effect
Heat transfer
Cycles & engines
- Four Stroke Engine
- Morse Test Rig — IC Engine
- Rankine Cycle Simulator
- Refrigeration Cycle Simulator
- Thermodynamics Cycles
- Two Stroke Engine
Psychrometrics & HVAC
Fluid Power & Automation
8
Pneumatics & electro-pneumatics
Hydraulics
PLC & digital logic
Electrical & Electronics
20
DC circuits
- Capacitor Bank — Series & Parallel
- Kirchhoff’s Circuit Solver
- Ohm’s Law Calculator & DC Circuit Builder
- RC Circuit — Charging & Discharging
- Resistor Color Code Calculator
- Wheatstone Bridge
AC circuits
- Capacitor Bank — Series & Parallel
- Diode & Rectifier Circuits
- RLC Circuit — AC Analysis
- Star-Delta (Y-Δ) Conversion
Electric machines
- AC Generator Simulator
- DC Motor Simulator & Load Test Virtual Lab
- Induction Motor Simulator & AC Motor Lab
- Star-Delta (Y-Δ) Conversion
- Transformer — Step-Up & Step-Down
Electromagnetism
Electronics
- BJT Transistor
- Diode & Rectifier Circuits
- Karnaugh Map Solver
- Logic Gates Simulator
- Resistor Color Code Calculator
Wiring & installation
Manufacturing & Workshop
16
Machining & CNC
- CNC G-Code Simulator
- Drilling Machine Simulator
- Lathe Machine Simulator
- Machining Calculator
- Milling Machine Simulator
Threads & fasteners
Drawings & standards
Fabrication: welding & sheet metal
Inspection & quality
Measurement & Metrology
11
Linear instruments
Angular instruments
Pressure, temperature & strain sensing
Chemistry
11
Atoms & bonding
Reactions & electrochemistry
Acids & bases
Gas laws
Waves & Optics
6
Light & radiation
Sound & vibration
Mathematics
16
Graphs & calculus
Geometry
- Area Calculator
- Moment of Inertia — Simulation Trainer
- Moment of Inertia of a Channel Section
- Moment of Inertia of a Circle
- Moment of Inertia of a Hollow Circle
- Moment of Inertia of a Hollow Rectangle
- Moment of Inertia of a Rectangle
- Moment of Inertia of a T-Section
- Moment of Inertia of an Angle Section
- Moment of Inertia of an I-Beam
- Protractor
Algebra & logic
How the library is organised
The homepage groups tools the way a course timetable does. The library sorts them the way you look for one. Each simulation carries a subject (Fluid Mechanics, Electrical & Electronics, Chemistry and nine more), one or more topics inside it, a format and a level.
Many simulations belong in more than one place. The four-stroke engine is an IC-engine mechanism and a thermodynamic cycle; the thermocouple is a heat topic and a measuring instrument; Pascal’s law is fluid statics and the basis of hydraulics. The library lists each one once in any result, and the card tells you where else it lives.
Formats
A concept animation shows a law or mechanism working. A virtual lab puts you in front of a real apparatus — a universal testing machine, a Morse test rig, a hydraulics bench. An instrument teaches you to read a caliper, micrometer or gauge. A builder lets you draw your own circuit, truss or ladder program. A calculator sizes or checks a part. Games and reference trainers cover the rest.
A PhET-style library, built for engineering
If you have used PhET Interactive Simulations from the University of Colorado Boulder, this library will feel familiar: free, in the browser, nothing to install and no sign-up. It goes further into engineering — virtual test rigs, measuring instruments, circuit builders and design calculators sit beside the physics and chemistry. MechSimulator is independent and is not affiliated with PhET.
Browse by category instead
Prefer the course view? Every category has its own page: virtual lab testing, measuring instruments, mechanics & motion, mechanisms & machines, strength of materials, thermal & fluid engineering, electrical engineering, workshop & manufacturing, engineering calculators, basic science and mathematics.
Updated