Kinematics & Gears
Involute Gear Mesh & Velocity Simulator
Real-time 2D animated pitch circle mesh, contact ratio calculator, module ratio, and backlash analyzer for spur and helical gears.
Velocity Ratio i & Pitch Diameter
✦ MotionSimulator Engine v2.5
Interactive Mechanical Simulator Online
Access the ultimate mechanical simulator online. A comprehensive, free web suite for mechanical engineers, designers, and students to solve physics, stress, fluid dynamics, and kinematic problems in real-time.
60 FPS Real-Time Physics
HTML5 Canvas & WebGL animated kinematic solvers with instant slider response.
Mathematical Rigor
Built directly on classical analytical formulas (Euler-Bernoulli, Darcy, Grashof).
Export CAD & CSV Data
Export high-resolution stress diagrams, motion curves, and calculation tables.
Apple HIG iOS Aesthetic
Clean frosted glass UI, fluid spring physics, dark/light theme for mobile & desktop.
All Simulators & Calculation Modules
Interactive visualizers and analytical calculation engines.
Fluid Mechanics
Interactive Wind Tunnel Simulator & Aerodynamics Lab
Real-time 2D wind tunnel simulator, Reynolds number solver, drag coefficient (Cd), lift (Cl), boundary layer, and flow visualization.
Reynolds No. & Drag/Lift Coeff
Machine Design
Interactive 3D G-Code CNC Simulator & Verification
Real-time 3D G-Code CNC toolpath simulator, interactive motion parser, feed/speed analyzer, and machine collision detector.
3D Toolpath & Motion Parser
Vibrations & Control
High Pitch Sound Simulator & Frequency Generator
Free online High Pitch Sound simulator & frequency generator. Test high frequency sound waves (1 kHz - 20 kHz), pitch vs frequency, volume, and oscilloscope.
High Pitch f & Amplitude A
Thermodynamics
Vapor Compression Refrigeration Cycle (VCRC) Simulator
Real-time VCRC thermodynamics cycle simulator. Calculate COP, mass flow rate, subcooling, superheat, P-h & T-s diagrams, and compare refrigerants.
COP_R & P-h / T-s Diagrams
Thermodynamics
Rankine Cycle Simulator & Thermodynamics Solver
Real-time ideal Rankine Cycle simulator. Calculate thermal efficiency, work output, steam quality, T-s & P-h phase diagrams for saturated & superheated steam.
Thermal Efficiency η & T-s Diagram
Thermodynamics
SteamCalc Pro — IAPWS-IF97 Steam Property Calculator
Free online IAPWS-IF97 Steam Property Calculator & Steam Tables. Calculate enthalpy, entropy, density, phase regions, Mollier (h-s) & P-h diagrams.
IAPWS-IF97 Enthalpy h & Entropy s
Fluid Mechanics
AeroSim — Compressible Flow Engineering Suite
Real-time compressible aerodynamics solver. Calculate 1D Isentropic flow, Normal Shock waves, Fanno flow, Rayleigh flow, oblique shocks, and Prandtl-Meyer expansion.
Mach No. & Shock Relations
Fluid Mechanics
Wind Turbine Simulator - BEM Aerodynamics
Real-time 2D wind turbine simulator based on Blade Element Momentum (BEM) theory. Calculate power output, Cp, Ct, TSR, pitch control, and velocity triangles.
BEM Theory & Cp Power Coefficient
Machine Design
Vernier Caliper Simulator & Metrology Lab
Real-time 2D Vernier Caliper simulator & measurement calculator. Practice metric readings (0.02mm, 0.05mm, 0.10mm), zero error calibration, 3D specimen snapping, and interactive metrology quizzes.
MSR + VSR & Zero Error Calibration
Fluid Mechanics
Hydraulic Flow Calculator & Pipe Sizing Solver
Real-time Hydraulic Flow Calculator. Calculate volumetric flow rates, line velocities, Darcy-Weisbach pressure drop, Reynolds number, pump power, and cylinder dynamics.
Flow Q, Velocity v & Darcy ΔP
QUICK DIRECTORY
Complete Tools & Simulators Index
Direct links to all engineering calculation modules (plain index view without descriptions).
● Kinematics & Gears
● Fluid Mechanics
● Machine Design
● Vibrations & Control
ENGINEERING HANDBOOK
Core Mechanical Engineering Formulas
Key mathematical relationships implemented across MotionSimulator modules.
Kinematics & Gears
Involute Gear Pitch Diameter & Module
d = m · z, i = z₂ / z₁Module (m) defines the gear tooth size scale. Pitch diameter (d) determines center distance and velocity ratio.
Stress & Deflection
Euler-Bernoulli Beam Bending
E·I · (d²y / dx²) = M(x)Relates second derivative of beam flexural deflection (y) to flexural rigidity (EI) and internal bending moment M(x).
Fluid Mechanics
Darcy-Weisbach Pipe Head Loss
h_f = f · (L / D) · (v² / 2g)Calculates major friction head loss (h_f) in circular pipes using the friction factor (f) from the Moody diagram.
Thermodynamics
Thermal Cycle Efficiency
η_th = 1 - (Q_out / Q_in) = 1 - (T_L / T_H)Defines upper Carnot limit and actual net work output relative to heat input across thermal engines.
Vibrations
Natural Undamped Frequency
ω_n = √(k / m), f_n = ω_n / 2πFundamental resonance frequency of single degree-of-freedom mass-spring system without external damping.
Machine Design
Flywheel Fluctuation Energy
ΔE = I · ω₀² · C_sRelates peak energy variation (ΔE) to flywheel moment of inertia (I) and speed fluctuation coefficient (C_s).
FAQ
Frequently Asked Questions
Common questions regarding MotionSimulator algorithms and CAD workflow integration.
What makes this the best mechanical simulator online?↓
MotionSimulator stands out as a leading mechanical simulator online by offering 60 FPS real-time interactive canvas solvers, accurate analytical solutions based on classical mechanics textbooks, and instant CSV/SVG data export features with no registration or installation required.
Are MotionSimulator calculations accurate for CAD and manufacturing?↓
Yes. MotionSimulator tools use exact analytical formulas from standard engineering handbooks (Shigley's Mechanical Engineering Design, Roark's Formulas for Stress and Strain, White's Fluid Mechanics). However, for mission-critical aerospace or structural applications, FEA validation is recommended.
Do I need to install any software or plugins?↓
No. MotionSimulator runs entirely in modern web browsers (Chrome, Safari, Firefox, Edge) using native WebAssembly and HTML5 Canvas. It requires no installation or registration.
Can I export simulation diagrams and data?↓
Yes. You can export high-resolution SVG/PNG plots of shear force, bending moment, gear tooth profiles, and downloadable CSV spreadsheets for further processing in Excel, MATLAB, or Python.
Is MotionSimulator free to use?↓
MotionSimulator is 100% free for engineers, researchers, educators, and students worldwide, supported by non-intrusive partner advertising.
About Our Mechanical Simulator Online Platform
MotionSimulator is the premier open-access mechanical simulator online platform, delivering high-precision physics simulation and mechanical engineering calculations. Designed with modern visual standards, this interactive mechanical simulator online enables engineers, educators, and students to analyze dynamic mechanical systems, fluid flows, structural beams, and thermodynamic cycles directly in their browser.
⚙️ Kinematics & Gears
Model spur gear teeth mesh, planetary gear reduction ratios, and 4-bar linkage coupler paths.
📐 Stress & Structural Analysis
Solve beam deflection profiles, SFD/BMD diagrams, and 2D finite element truss stress states.
🌊 Fluid Dynamics & Hydraulics
Calculate pipe friction losses, Bernoulli energy equations, and pump NPSH margins.
🔥 Thermal & Power Cycles
Plot P-V and T-S state curves for Rankine, Carnot, Otto, and Diesel thermodynamic power cycles.