📚 Engineering Calculators & Simulators Directory

An ultra-precision 2D physics simulator that calculates and visualizes linear tip speed (tangential speed) in real-time by entering the diameter and rotational speed (RPM).

An ultra-precision 2D physics simulator that calculates the gear ratio, output speed, torque changes, and geometric dimensions in real time by adjusting the number of gear teeth and input RPM, and visualizes a perfectly meshed and rotating gear train.

An ultra-precision 2D simulator that visualizes a smoothly operating belt drive system while calculating belt length, contact angles, belt speed, and output speed in real-time by adjusting the diameter of two pulleys, center distance, and input RPM.

A high-precision 2D simulator that calculates the mutual conversion between power (kW, HP), torque (N·m, kgf·m), and rotational speed (RPM), while visualizing motor rotation and heat generation interactions under load.

A high-precision 2D physics simulator that calculates and visualizes chain linear velocity, pitch circle diameter (PCD), and acting tension force in real time based on user inputs for chain pitch, sprocket teeth (Z), rotational speed (RPM), and transmitted power.

A high-precision 2D simulator that calculates the equivalent dynamic load and rating life (L10h) of ball/roller bearings in accordance with the ISO 281 standard, and visualizes raceway contact stress distribution and lubrication flow based on load vectors.

This 2D mechanical element simulator precisely calculates the physical interaction between tightening torque and bolt tension based on nominal bolt diameter, strength class, and friction coefficient, while visualizing the tensile stress flow in the bolt shank and the clamping pressure distribution on the clamped plates.

A 2D simulator that precisely calculates the stiffness, deflection, and Wahl-corrected stress of a coil spring based on wire diameter, mean coil diameter, active coils, and applied load, while visualizing the spring’s real-time geometric compression state.

A 2D engineering simulator that calculates dimensional limits of size, maximum/minimum clearances, and interferences in real-time based on ISO 286 shaft and hole tolerance classes (H7, g6, etc.) and basic sizes, visualizing the mating area of micro-tolerance bands at 1000x magnification.

A simulator that calculates the effective throat area, shear/tensile stress, and AISC-compliant allowable safety factor for butt and fillet welds by adjusting weld length, leg size (throat thickness), applied load, and electrode strength (Exx) in real time.

A simulator that calculates and visualizes in real-time the optimal motor specifications (kW) considering required torque, moment of inertia, acceleration power, and efficiency by setting the load mass, diameter, acceleration time, and target RPM.

A simulator that calculates the synchronous speed, actual rotor speed, and slip of an induction motor by controlling the frequency and number of motor poles, while visualizing the V/F pattern curve and the speed deviation of the stator rotating magnetic field in real time.

A high-precision 2D simulator that performs real-time calculations of the mass moment of inertia (I), kinetic energy storage, and coefficient of speed fluctuation (Cf) based on the flywheel’s mass, radial dimensions, average rotational speed, and engine pulsation energy, while graphically visualizing rotational velocity pulsations.

A premium mechanical element simulator that visualizes the real-time displacement, velocity, and acceleration of a follower using a 2D physics engine, based on parameters such as base circle radius, lift stroke, rotational speed, and cam profile (eccentric, heart-shaped, and constant velocity).

A multi-disciplinary mechanical element simulator that precisely analyzes the power transmission of single-plate clutches (Uniform Wear/Pressure) and the braking torque and tension ratio (Euler-Eytelwein) of band brakes based on friction coefficient, applied load, contact radius, and wrap angle, verifying friction engagement and braking behavior with 2D graphics.

A professional web simulator that calculates the Reynolds number in real-time by inputting fluid density, viscosity, pipe diameter, and flow velocity, and visualizes fluid flow in laminar, transition, and turbulent zones using a 2D physics engine.

A high-precision simulator that calculates the cross-sectional flow velocity (v) in real-time based on the pipe’s internal diameter (D) and design flow rate (Q). It evaluates compliance with recommended flow velocity guidelines and visualizes fluid flow using a physics engine.

This is a 2D physics simulator that visualizes manometers and provides real-time analysis of velocity increase and static pressure drop (Venturi Effect) based on Bernoulli’s Theorem by inputting the inlet and throat diameters, flow velocity, and static pressure of a Venturi tube.

A 2D simulator that visualizes the linear expansion of various metal rods in real time based on temperature changes, demonstrating the linear expansion formula and micrometer-scale displacement through physical modeling and atomic vibrations.

An engineering simulator that precisely calculates temperature gradient diagrams and total heat loss by analyzing heat flow through a triple-layer composite wall structure (conduction, convection, and insulation) using real-time finite difference modeling.

A calculator that simulates hoop stress, longitudinal stress, maximum shear stress, safety factor, and burst behavior based on thin-walled pressure vessel theory by adjusting the inner diameter, wall thickness, operating internal pressure, and material yield strength of cylindrical and spherical pressure vessels.

This calculator computes the efflux velocity and discharge flow rate based on Torricelli’s Law by entering the orifice diameter (d), head height (H), and discharge coefficient (Cd), and visualizes the beautiful water jet trajectory using a 2D parabolic physics engine.

An engineering calculator that performs real-time analysis of Reynolds number (Re) determination, Darcy friction factor (f) via the Haaland equation, and pipe friction pressure loss by inputting pipe diameter, pipe length, design flow rate, and material-specific surface roughness (ε).

This high-precision 2D simulator calculates the extension/retraction thrust (force) and piston travel velocity in real time by adjusting the cylinder bore, rod diameter, operating pressure, and supply flow rate, while simulating bidirectional behavior based on valve switching.

A physics simulator for factory automation design that calculates and analyzes cylinder thrust force (N) and air consumption (NL/min) in real time based on inputs for cylinder bore diameter, rod diameter, operating stroke, control pressure, and operating cycles per minute.

A 2D simulator that visualizes pump operation conveying fluid upward, while calculating water power, shaft power, and motor design power in real time by adjusting the design flow rate (Q), total head (H), fluid density, and pump efficiency.

A calculator that performs real-time numerical analysis of outlet temperatures, heat transfer rates, Log Mean Temperature Difference (LMTD), and effectiveness (NTU) for double-pipe heat exchangers in parallel and counter flow configurations, while visualizing dynamic temperature gradients.

A premium simulator that takes real-time inputs for compressor efficiency, evaporating temperature, and condensing temperature to simulate the four major operating states of a refrigeration cycle, rendering the compressor work, refrigeration capacity, and Coefficient of Performance (COP) along with a pressure-enthalpy diagram.

A simulator that calculates key heat loss factors in real time based on the ASME PTC 4.1 heat loss (indirect) method and controls the operating point to maximize efficiency by adjusting flue gas temperature, excess air (oxygen concentration), boiler load factor, and fuel type.

This simulator visualizes the entire process of potential energy converting into rotational kinetic energy and ultimately into electrical energy (MW) based on the intake head height and volumetric flow rate, presented through a real-time 2D generator physics flow.

A mechanical engineering calculator that calculates normal force and critical sliding velocity, and simulates the accelerated sliding of an object in real-time by adjusting the object’s mass, inclination angle, and static/kinetic friction coefficients on an inclined plane.

This simulator precisely calculates changes in impact force (N) and momentum by allowing users to configure mass, velocity changes before and after collision, and contact time (crumple zone) from various angles, and visualize real-time deformation behavior through physics-based animations.

A physics simulator that tracks real-time non-linear motion trajectories and analyzes dynamic tension and potential/kinetic energy conservation behavior by configuring pendulum length, bob mass, initial release angle, and air damping coefficient.

A simulator that drives a launch dynamics physics engine to track 2D trajectories in real time by precisely configuring variables such as a projectile’s launch velocity, angle, initial height, and air resistance coefficient.

This simulator analyzes the behavioral regions along the stress-strain curve (elastic, yielding, plastic deformation, necking), the fracture point, and the safety factor by adjusting the material’s cross-sectional area, gauge length, tensile load, and material properties (elastic modulus, yield/tensile strength) in real time.

A simulator that calculates principal stresses and von Mises equivalent stress by adjusting yield strength, tensile/compressive strength, and 2D stress states (σx, σy, τxy) in real time, and visualizes/analyzes ductile (von Mises ellipse) and brittle (Coulomb-Mohr) failure model envelopes and factors of safety.

This simulator allows real-time configuration of the width, height, and thickness of rectangular, hollow box, I-beam, and circular cross-sections to dynamically derive and analyze cross-sectional area, centroidal axes, second moment of area (Ix, Iy), and radius of gyration.

A simulator that dynamically links column length, support conditions (pin-pin, fixed-free, fixed-fixed, fixed-pin), load, and stiffness in real time to visualize and analyze the critical buckling load (Pcr) at which a column buckles laterally under compressive loads.

A high-precision 2D structural analysis simulator that visualizes deflection curves, support reactions, and moment distributions in real-time by adjusting beam length, concentrated load and load position, section modulus, and modulus of elasticity.

Simulate the free vibration damping behavior of a damped system and the amplitude maximization phenomenon under resonance conditions in real time with 2D physical trajectories and spectrum charts by configuring mass, spring stiffness, damping coefficient, and external force frequency.

This visual simulator calculates the modified endurance limit (Se) by linking material tensile strength (Sut), mean stress (σm), alternating stress amplitude (σa), and reliability/surface factors, while diagnosing the life cycle (Cycles) on the S-N curve and the Goodman safety factor.

A physics circuit simulator that calculates the relationship between voltage, resistance, and current in real time, allowing you to visually observe the flow of electrons and energy consumption within a circuit.

This simulator precisely analyzes the required capacitor bank capacity (kVAR) for power factor correction and electrical energy savings by inputting the active power of the load, the existing power factor, and the target power factor, visualized through a 2D vector phase simulation.

This simulator designs the appropriate cable cross-sectional area (mm²) based on load current, transmission distance, allowable voltage drop, and installation environment, while providing a 2D visualization of charge density and cable thermal conditions.

Based on the workpiece diameter and spindle speed (RPM), this tool analyzes the peripheral cutting speed (m/min) of lathe machining, along with the theoretical surface roughness (Ra, Ry) and material removal rate (MRR) based on the feed rate, using a real-time 2D cutting chip simulation.

Visualizes the spindle speed (RPM), linear feed rate (mm/min), and machining time based on drill diameter and recommended cutting speed for different workpiece materials through a real-time 2D drill physics simulation.