EngineerHub category // Mechanical
Mechanical Engineering
Size and check machine elements, investigate stress and fatigue-related behaviour, and visualize vibration, resonance, fracture and rotating-system phenomena.
16 calculator / tools6 interactive simulators2 study materials1 case study25 pages total
This collection focuses on machine components, mechanics and mechanical response. It includes shaft, bearing, spring, fastener and stress calculators, plus visual tools for fracture, resonance, vibration and related physical behaviour. Material-property references are linked where they support a mechanical design calculation.
Choose a tool below by purpose. Individual pages include their own assumptions, equations, references and limitations where applicable.
Calculators & tools
16 pages
Bearing Life CalculatorCalculate rolling-element bearing L10 basic rating life in millions of revolutions and hours, using the ISO 281 dynamic load rating equation.→Bearing Life L10 CalculatorCalculate ISO-style basic rating life L10 for ball or roller bearings from dynamic load rating and equivalent dynamic load, with RPM and reliability adjustment.→Bending Stress CalculatorCalculate maximum bending stress from applied moment and cross-section geometry for rectangular, solid circular or hollow circular sections, with a factor of safety check.→Bolt Torque & Preload CalculatorCalculate bolt tightening torque or preload for metric and inch fasteners. Includes grades, proof load, lubrication factors, SI and US Customary units.→Compression Spring Design CalculatorCalculate compression spring rate, deflection, Wahl-corrected shear stress, solid height, stored energy and stress margin for helical coil springs.→Flywheel Energy CalculatorCalculate flywheel moment of inertia, stored rotational energy, rim speed and ideal runtime for solid disks, rims and rings in SI or US units.→Gear Ratio & Gear Train CalculatorCalculate speed ratio, output RPM, torque, power, pitch diameters and center distances for one-, two- and three-stage external gear trains.→Interactive Ashby ChartInteractive Ashby-style materials selection chart with 100 engineering materials, property ranges, density, Young's modulus, strength, thermal conductivity, performance-index lines and…→Keyway & Fastener CalculatorCheck parallel key shear and bearing stress or screen bolted fasteners under combined direct tension and shear using von Mises stress.→Magnetic Bearing CalculatorSize an active radial magnetic bearing: Maxwell force, bias linearisation, force constant, negative stiffness, saturation limit, PD gains, amplifier voltage limit and load capacity, with…→Pressure Vessel Thickness CalculatorEstimate preliminary pressure-vessel shell and head thickness from internal pressure, allowable stress, joint efficiency and allowances.→Quick Shaft Sizing CalculatorEstimate minimum solid or hollow shaft diameter from transmitted power, RPM, allowable shear stress and a torsional service factor.→Shaft Critical Speed CalculatorCalculate the first critical speed of a simply-supported rotating shaft, combining a concentrated mass and the shaft's own self-weight via Dunkerley's approximation.→Shaft Design CalculatorDesign and check solid or hollow rotating shafts for combined bending and torsion using von Mises stress, safety factor and angle-of-twist screening.→Thermal Expansion CalculatorCalculate expansion, contraction, strain and restrained stress for 50+ metals, plastics, glass, stone, composites and wood in SI or US units.→Thread Engagement CalculatorCalculate minimum thread engagement length so a bolted joint fails in the screw rather than by thread stripping, accounting for different-strength mating materials.→
Interactive simulators
6 pages
Coriolis Effect & Foucault Pendulum SimulatorSimulate Coriolis deflection, Foucault pendulum precession, Rossby number and geostrophic balance with latitude-dependent Earth rotation.→Fracture Mechanics & Crack Growth SimulatorSimulate stress intensity, critical crack size, Paris-law fatigue growth, Irwin plastic zones and a simplified leak-before-break geometry screen.→Helmholtz Resonator & Acoustic Resonance SimulatorCalculate Helmholtz resonance, neck end correction, pipe modes, damping, Q and response bandwidth with an interactive acoustic resonance simulator.→Pendulum SimulatorInteractive pendulum simulator for nonlinear motion, the small-angle approximation, energy, damping, driven resonance, coupled pendulums and physical pendulums. Explore live animated…→Spring / Hooke's Law / SHM SimulatorInteractive spring, Hooke's law and simple harmonic motion simulator. Explore force-displacement behavior, horizontal and vertical spring motion, energy exchange, damping and driven…→Vortex Shedding & Resonance SimulatorInteractive vortex shedding simulator with a 2.5D Kármán street, lock-in map, amplitude trend, Reynolds number, Strouhal number and VIV screening tools.→
Study materials
2 pages
Engineering Material PropertiesEngineering material properties database for steels, nickel alloys, aluminium, copper alloys, polymers, ceramics, semiconductors, composites, concrete, glass and wood. Compare density,…→Young’s Modulus ValuesBrowse typical Young’s modulus ranges and calculate elastic stress, strain, extension, force and strain-energy density.→
Case studies
1 page