Mechanical Engineering Simulators

Ackermann Steering Geometry Simulator

Vehicle Dynamics

When a car turns, the inner and outer front wheels follow circles of different radius and so must be steered to different angles.

AGV/AMR Warehouse Traffic Throughput Simulator

Mechanisms & Robotics

Pick one of four warehouse types — e-commerce fulfillment, manufacturing flow, cold storage or cross-dock — then dial in floor area, AGV count, speed, charging cycle and…

Air Spring Stiffness Simulator

Springs

Design an air spring that carries a load on the resistance of trapped gas to being compressed.

Ball Bearing Hertz Contact Stress Simulator — Inner & Outer Race Stress

Bearings & Lubrication

Ball Bearing Hertz Contact Stress Simulator for inner and outer race stress analysis. Real-time contact pressure visualization and per-ball load computation.

Ball Screw Drive Simulator

Power Transmission & Brakes

Design the ball screw that converts a motor's rotary motion into the linear motion of a table.

Band Brake Torque Simulator

Power Transmission & Brakes

Design the band brake that stops a rotating drum by wrapping a flexible band around it.

Rolling Bearing Life Calculator (L10 · ISO 281)

Bearings & Lubrication

Calculate rolling bearing life (L10 & Lnm) per ISO 281. Real-time tool with load-life charts and Weibull distribution for ball and roller bearings.

Belleville Spring (Disc Spring) Simulator

Springs

Belleville Spring (Disc Spring) Simulator: Design a coned disc spring (Belleville washer). Adjust the outside and inside diameter, thickness, free height and…

Belt Conveyor Power Simulator

Power Transmission & Brakes

Estimate the required drive power of a belt conveyor carrying bulk material (ore, gravel, grain and the like).

Belt & Chain Drive Calculator

Power Transmission & Brakes

Calculate belt length, tension, and power for your drive system. Set pulley dimensions, center distance, and speed with this interactive CAE transmission calculator.

Belt Friction Simulator — Capstan Equation

Power Transmission & Brakes

Belt Friction Simulator using Capstan Equation to visualize exponential tension amplification with wrap angle and friction coefficient adjustments for engineers.

Straight Bevel Gear Tooth Force Simulator

Gears

Straight Bevel Gear Tooth Force Simulator: For straight bevel gears that transmit power between intersecting shafts, this tool computes the three tooth-force…

Bicycle Gear Ratio Simulator

Gears

Bicycle gear ratio simulator: calculate cycling speed by adjusting sprocket teeth and cadence. Essential tool for drivetrain analysis and performance optimization.

Bolt Fatigue Analysis — Goodman Diagram & Safety Factor Calculator

Fasteners & Joints

Calculate bolt preload, working stresses, and fatigue safety factor with this online tool. Input bolt grade, diameter, and load for instant analysis.

Bolt Preload & Fatigue Design Calculator

Fasteners & Joints

Calculate bolt tightening torque, preload, joint stiffness, and fatigue safety factor in real time for grades 4.6–12.9 and sizes M6–M48.

Bolted Joint Analysis (Preload & Fatigue)

Fasteners & Joints

Set preload, external force, and bolt/flange stiffness to analyze load distribution, separation safety factor, and fatigue safety factor in real time.

Cam and Follower Mechanism Designer

Mechanisms & Robotics

Design cam profiles with real-time animation. Calculate follower displacement, velocity, acceleration, pressure angle, and contact stress for cycloidal and polynomial motions.

Cam Mechanism Simulator — Displacement, Velocity & Acceleration

Mechanisms & Robotics

Visualize cam follower motion in real time. Compare SHM, cycloidal, and polynomial profiles. Analyze displacement, velocity, and acceleration instantly.

Cam Profile Design Simulator

Mechanisms & Robotics

Design and animate disk cam profiles in real time. Compare SHM, cycloidal, and modified sinusoidal motion programs. View displacement, velocity, and acceleration curves.

Car Braking Distance Calculator

Vehicle Dynamics

Calculate total car stopping distance interactively. Set speed, road friction and reaction time to see why braking distance grows as v squared.

Cardan Joint Simulator — Shaft Angle and Angular Velocity Variation

Power Transmission & Brakes

Cardan (Hooke / universal) joint angular velocity ratio simulator. Visualize output speed, max ratio and tan-squared-beta variation from shaft angle and input rotation.

Center of Percussion Simulator

Machine Dynamics

Calculate center of percussion and sweet spot physics in real-time. Adjust mass, length, CG position, radius of gyration to minimize grip jolt.'s "sweet spot". Adjust the mass, length, CG position,…

Centrifugal Clutch Simulator

Power Transmission & Brakes

Design a centrifugal clutch that engages automatically as speed rises.

Crank-Slider Mechanism Simulator — Piston Motion Analysis

Mechanisms & Robotics

Simulate piston kinematics in real-time. Adjust crank radius, rod length, and speed to visualize position, velocity, and acceleration.

DH Parameters & Forward Kinematics Calculator (Up to 6-DOF)

Mechanisms & Robotics

Calculate forward kinematics for 6-DOF robot arms using DH parameters. Includes PUMA, SCARA, and UR presets with real-time transformation matrices.

Drum Brake Shoe Friction & Contact Pressure Simulator

Power Transmission & Brakes

Drum Brake Shoe Friction & Contact Pressure Simulator: A sizing aid for the rear drum brakes used on passenger cars and light trucks. Change drum diameter, s…

Elevator Rope Tension & Sag Simulator

Power Transmission & Brakes

Real-time tension, safety factor, elastic stretch and sag for the suspension ropes of a high-rise traction elevator.

Engine BMEP Simulator

Vehicle Dynamics

Engine BMEP Simulator: Real-time brake mean effective pressure calculation tool for comparing engine performance across displacement and RPM ranges.'s power, rpm and displacement to see the brake mean effective pressure (BMEP), brake torque and specific power update…'s power, rpm and displacement to see the brake mean effective pressure (BMEP), brake torque and specific power update…

Engine Crank-Slider Kinematics Analyzer

Mechanisms & Robotics

Analyze crank-slider kinematics with displacement, velocity, and acceleration calculations. Understand motion intuitively with animations and graphs.

EV Tire Rolling Resistance Coefficient & Range Impact

Vehicle Dynamics

EV Tire Rolling Resistance Coefficient & Range Impact: For an EV, driving range is set almost as much by tire rolling resistance coefficient (CRR) as by batt…

Forward Kinematics Simulator — Two-Link Planar Manipulator

Mechanisms & Robotics

Forward kinematics for a 2-link planar manipulator. Compute end-effector (x,y), reach r, and Jacobian determinant detJ = L1 L2 sin theta2 with singularity visualization.

Friction Clutch Torque Simulator

Power Transmission & Brakes

Friction Clutch Torque Simulator: Design the torque a disc (plate) friction clutch can transmit. Adjust the inner and outer friction diameters, axial force, …

Gear Train Efficiency & Tooth Bending Stress Calculator (AGMA)

Gears

Calculate gear train efficiency and tooth bending stress instantly. Adjust module, tooth count, and torque for real-time AGMA and Lewis bending stress results.

Epicyclic Gear Train Calculator — Speed Ratio, Torque & Efficiency

Gears

Calculate gear ratios, torque, and efficiency with our interactive epicyclic gear train calculator. Visualize planetary gear motion instantly.

Gear Ratio, Speed & Torque Calculator

Gears

Calculate gear ratios, output speed, and torque in real-time. Visualize rotation with animations for simple, compound, and planetary gear systems.

Gear Tooth Stress Calculator — Lewis Bending & Hertz Contact Stress

Gears

Calculate gear tooth stress with our free online tool. Input module, power, speed & material to get Lewis bending and Hertz contact stress results instantly.

Gear Tooth Design Calculator — Involute Profile, Contact Ratio & Stress

Gears

Design and analyze spur gears instantly. Adjust module, teeth, and pressure angle to render involute profiles and compute contact ratio and bending stress.

Gear Train Simulator (Spur & Planetary Gears)

Gears

Interactive simulator for spur & planetary gear trains. Visualize meshing, calculate ratios, speed, torque, and pitch diameters with accurate animations.

Greenwood-Williamson Rough Contact Simulator

Bearings & Lubrication

Greenwood-Williamson rough surface contact simulator (GW model). Compute real contact area, load and count from Gaussian asperity heights with sigma, beta, eta, d sliders.

Gyroscope Precession Calculator & Visualizer

Machine Dynamics

Calculate gyroscope precession instantly. Input spin, mass, radius, and tilt to visualize angular momentum and nutation for engineering and physics.

Hydraulic Cylinder Calculator — Force, Speed & Buckling Safety

Mechanisms & Robotics

Calculate hydraulic cylinder forces, piston speed, buckling safety factor, and power. Instant F-P curves and design analysis for engineers.

Hydraulic Jack Calculator — Pascal's Principle Simulator

Mechanisms & Robotics

Hydraulic jack calculator for Pascal's principle and adjust piston sizes in real time.

Hydrodynamic Bearing Analysis — Oil Film Pressure & Sommerfeld Number

Bearings & Lubrication

Design hydrodynamic journal bearings with real-time Sommerfeld number, minimum film thickness, friction coefficient and friction loss using Raimondi-Boyd approximations.

Industrial Robot Payload-to-Weight Ratio Simulator

Mechanisms & Robotics

Industrial Robot Payload-to-Weight Ratio Simulator: Enter rated payload, reach and tool conditions for a 6-DOF articulated, SCARA, delta or collaborative rob…

Interference Fit Torque Simulator

Fasteners & Joints

Interference Fit Torque Simulator: Design the interference fits — press fits and shrink fits — where a shaft made slightly larger than its hub bore is forced…

Robot Arm Inverse Kinematics Calculator (2/3-DOF)

Mechanisms & Robotics

Calculate joint angles for 2R/3R robot arms from target position. Visualizes elbow-up/down solutions and checks reachability with the cosine rule.

Journal Bearing Sommerfeld Number Simulator

Bearings & Lubrication

Design the hydrodynamic journal bearing that supports a rotating shaft on a self-generated film of oil.

Kinematics Calculator & Visualizer — 1D/2D Constant Acceleration

Machine Dynamics

Solve 1D & 2D motion problems instantly. Visualize projectile arcs and sketch graphs to see kinematic equations in action. Perfect for physics students.

Knuckle Joint Design Simulator

Fasteners & Joints

Knuckle Joint Design Simulator: A knuckle joint (clevis-and-eye joint with a pin) is one of the most basic mechanical elements that transmits axial tension b…

Multi-Leaf Spring Deflection Simulator

Springs

Multi-Leaf Spring Deflection Simulator: Design the multi-leaf (carriage) springs that suspend trucks, vans, trailers, railway carriages and heavy SUVs. Vary …

Crank-Slider & Four-Bar Linkage Analyzer

Mechanisms & Robotics

Analyze 4-bar linkage and crank-slider mechanisms with real-time animation. Calculate Grashof condition, transmission angle, velocity, and acceleration.

Lubrication Regime Calculator

Bearings & Lubrication

Calculate journal bearing lubrication regimes in real-time. View Sommerfeld number, film thickness, and the Stribeck curve for precise regime identification.

Active Magnetic Bearing (AMB) Radial Load Simulator

Bearings & Lubrication

Active Magnetic Bearing (AMB) Radial Load Simulator: Design an Active Magnetic Bearing that levitates a spinning rotor with electromagnets. Adjust rotor mass…

Active Magnetic Bearing Rotor Stiffness Simulator

Bearings & Lubrication

Active Magnetic Bearing Rotor Stiffness Simulator: Design Active Magnetic Bearings (AMB) that levitate a rotor without contact. From rotor mass, RPM, air gap…

Mechanical Advantage Simulator — Lever, Pulley, Inclined Plane

Mechanisms & Robotics

Mechanical Advantage Simulator: Calculate force amplification for levers, pulleys, inclined planes. Animate real-time efficiency with friction parameters.

O-Ring Gland Design Simulator

Fasteners & Joints

O-Ring Gland Design Simulator: Design the groove (gland) that houses an O-ring seal. Adjust the cord diameter, groove depth, groove width and shaft diameter …

Planetary Gear Ratio Simulator

Gears

Design a planetary (epicyclic) gear train made of a sun gear, planet gears, a ring gear and a carrier.

Pneumatic Circuit Calculator

Mechanisms & Robotics

Calculate pneumatic cylinder forces, air consumption, pressure drop & compressor sizing in real-time. Essential tool for factory automation & industrial design.

Power Screw Efficiency Simulator

Fasteners & Joints

Power Screw Efficiency Simulator: Design the power screw (lead screw) that turns rotary motion into a powerful linear thrust. Adjust the nominal diameter, pi…

Interference / Press Fit Calculator (Lamé Equations, Contact Pressure)

Fasteners & Joints

Calculate contact pressure, assembly force, torque capacity, and stress for press-fit designs using Lamé thick-cylinder equations.

Pulley Simulator — Mechanical Advantage of a Block and Tackle

Power Transmission & Brakes

Block-and-tackle pulley simulator. Vary load, rope count N, efficiency and lift height to compute MA = N·eta, input force, work and friction losses in real time.

Riveted Lap Joint Strength Simulator

Fasteners & Joints

Calculate the strength of a "lap joint" — two plates overlapped and held by rivets — in real time.

Robot Joint Torque & Newton-Euler Dynamics Calculator

Mechanisms & Robotics

Calculate joint torques for a 2-DOF robot arm using Newton-Euler dynamics. Visualize torque variation along a cubic-spline trajectory with full term breakdown.

Roller Chain Drive Simulator

Power Transmission & Brakes

Roller Chain Drive Simulator: Design a transmission that carries torque between two sprockets with a roller chain. Adjust the tooth counts, pitch, speed and …

Rolling Bearing Life Calculator (L10, Dynamic Load)

Bearings & Lubrication

Calculate rolling bearing L10 life in hours & years. Enter load, bearing type & dynamic rating. Uses ISO 281 formula for ball or roller bearings.

Rolling Contact Fatigue & Pitting Resistance Calculator

Bearings & Lubrication

Calculate Hertz contact pressure, shear stress, and L10 fatigue life in real time. Essential for bearing and gear pitting resistance design.

Rolling Contact Stress & Hertz Theory Calculator

Bearings & Lubrication

Calculate rolling contact stress using Hertz theory. Visualize contact ellipse, peak pressure, and subsurface stress in real-time for ball-ball contacts.

Rollover Threshold Simulator

Vehicle Dynamics

Rollover Threshold Simulator: A tool to compute the Static Stability Factor (SSF) — the single geometric number that sets the lateral acceleration at which a…

Rotational Dynamics Simulator

Machine Dynamics

Simulate rotational dynamics in real-time. Calculate moment of inertia, torque, angular acceleration, kinetic energy, and angular momentum instantly.

Screw Tightening Torque Calculator

Fasteners & Joints

Calculate tightening torque, self-locking, and efficiency for metric, UNC, and UNF threads with our real-time bolt torque calculator.

Shrink-Fit Stress Simulator — Lamé Thick-Cylinder Solution

Fasteners & Joints

Shrink-fit stress simulator using Lamé equations. Model contact pressure, hoop stress, and torque capacity by adjusting shaft diameter, interference, and material properties.

Coil Spring Design Calculator (Buckling, Resonance, Fatigue)

Springs

Design and analyze coil springs instantly. Adjust wire diameter, coil count, and more to calculate spring rate, shear stress, Wahl factor, and natural frequency.

Coil Spring Fatigue Design Calculator — Wahl Factor & Modified Goodman Diagram

Springs

Calculate coil spring fatigue safety factors in real-time. Visualize stress on a Goodman diagram and apply the Wahl correction factor.

Spring Network Simulator — Series, Parallel & Combination

Springs

Simulate springs in series, parallel, or combination. Calculate equivalent stiffness, displacement, force, and strain energy with interactive physics formulas.

Railway Curve Cant & Cant Deficiency Simulator

Vehicle Dynamics

Design tool for high-speed, commuter and freight rail curves.

Suspension Kinematics Simulator — Double Wishbone & MacPherson

Vehicle Dynamics

Optimize double wishbone or MacPherson strut geometry in real time. Visualize camber, track width, and roll center height versus wheel travel in this CAE suspension simulator.

Tire Dynamics Simulator — Pacejka Magic Formula Friction Circle

Vehicle Dynamics

Visualize tire lateral force vs slip angle and the friction ellipse with the Pacejka Magic Formula. Tune B, C, D, E to explore cornering stiffness and grip limits.

Tire Mechanics Simulator

Vehicle Dynamics

Visualize tire forces in real time. Adjust slip angle, load, and friction to explore the Pacejka Magic Formula and the friction circle.

Torque & Lever Principle Simulator

Mechanisms & Robotics

Torque & Lever Principle Simulator: Adjust force magnitude, position, and angle on both sides of a lever to visualize torque balance in real time. Perfect fo…

Torsion Bar Spring Simulator

Springs

Torsion Bar Spring Simulator: Design a torsion bar spring — one of the most elegant and compact spring elements ever invented. A simple straight round rod st…

Shaft Torsion Design Calculator — Shear Stress, Twist Angle & Required Diameter

Power Transmission & Brakes

Calculate shaft torque, shear stress, and twist angle. Input power, RPM, cross-section, and material for instant design results.

Turn Radius & Bank Angle Simulator

Vehicle Dynamics

Turn Radius & Bank Angle Simulator: Analyze the level coordinated turn an aircraft flies at constant altitude. Adjust the airspeed and bank angle to see the …

Universal Joint Velocity Simulator

Power Transmission & Brakes

Universal Joint Velocity Simulator: Visualise the non-uniform motion of a universal joint (Hooke joint) connecting two shafts that meet at an angle. Adjust t…

V-Belt Drive Simulator

Power Transmission & Brakes

V-Belt Drive Simulator compares how nearby design assumptions and key metrics shifts as the main assumptions change.

Vehicle Cornering Stiffness & Understeer Gradient Simulator

Vehicle Dynamics

Vehicle Cornering Stiffness & Understeer Gradient Simulator: Compute axle cornering stiffness Cα, understeer gradient K, characteristic and critical speeds, …

Vehicle Dynamics Simulator

Vehicle Dynamics

Simulate vehicle handling with linear bicycle model. Compute yaw rate, sideslip, understeer gradient, and characteristic speed.

Vehicle Roll Stability SSF (NHTSA) Simulator

Vehicle Dynamics

Vehicle Roll Stability SSF (NHTSA) Simulator: Compute the NHTSA Static Stability Factor SSF = (Track Width / 2) / CG Height and compare it against the latera…'s Static Stability Factor SSF=(Track Width/2)/CG Height with star rating, lateral acceleration, maximum safe cornering speed, and tip-vs-slide failure mode. Free vehicle rollover analysis tool for SUVs, pickups, vans and buses.

Wahl Correction Factor Simulator — Maximum Shear Stress in Helical Springs

Springs

Wahl correction factor simulator for helical spring shear stress analysis. Calculate K_W and maximum shear stress with spring index, stiffness in real time.

Braking Weight Transfer Simulator

Vehicle Dynamics

Braking Weight Transfer Simulator: When the brakes are applied, the car pitches nose-down and load shifts from the rear axle onto the front. Adjust vehicle m…

Wire Rope Strength Calculator — Breaking Load, WLL & Fatigue Life

Power Transmission & Brakes

Calculate wire rope breaking load, working load limit & fatigue life instantly. Input diameter, construction, UTS & safety factor for real-time results.

Worm Gear Efficiency & Self-Locking Calculator

Gears

Calculate worm gear forward/reverse efficiency and self-locking threshold. Input lead angle and friction coefficient for instant results.