Biped Walking: Compass Gait, Five-Link Walker and Poincaré Stability
Wired White v2 Find periodic walking gaits, Poincaré multipliers and disturbance margins for a passive compass gait or a full five-link HZD walker. Animate each hybrid step.
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Wired White v2 
Series Elastic Actuator: Spring Stiffness, Impact and Bandwidth
Wired White v2 Size an SEA spring for robot-leg impacts and force control. Compare nonlinear impact forces, spring travel, motor-limited bandwidth and output impedance across stiffness.
Robot Joint RMS Torque & S1 Motor Thermal Check
Wired White v2 Size a robot joint motor from a time–angle table or smooth trajectory. Check RMS and peak torque, the speed–torque curve, and winding temperature over repeated cycles.
Hexapod Leg Inverse Kinematics: 3-DOF Cycloidal Step and Workspace
Wired White v2 Calculate 3-DOF coxa–femur–tibia joint angles and speeds for a cycloidal swing. Animate the leg and explore joint-limited workspace and velocity manipulability.
Cycloidal & Planetary Reducer: Stress, Stiffness and Backlash
Wired White v2 Size a robot joint reducer using modified cycloid profiles or involute planetary meshes. Solve contact loads, Hertz pressure, torsional stiffness and clearance-driven backlash.
Humanoid Push Recovery: Capture Point, DCM and Step Placement
Wired White v2 Can a humanoid stop after a push? Calculate capture point and DCM motion, finite-foot N-step capture regions, touchdown deadlines and recovery foot placements.
Hexapod Gait Stability: Slopes, Support Polygon and ZMP
Wired White v2 Compare tripod, ripple and wave gaits on slopes and uneven footholds. Evaluate static margin, tipping energy, force-angle reserve and body-acceleration ZMP through a complete cycle.
QDD Actuator: Gear Ratio, Inertia, Bandwidth and Heating
Wired White v2 Size a quasi direct drive robot joint: compare gear ratios, reflected inertia, torque bandwidth and voltage limits, then simulate winding and housing heating during running and jumping.
Drone Ground Effect: Hover Thrust Gain and Pitch Stability
Wired White v2 Estimate quadcopter hover thrust gain, power saving and pitch moment near a landing-pad edge using Cheeseman–Bennett, Hayden and multirotor image-source models.
Tethered Drone Cable Size, Voltage and Wind Catenary
Wired White v2 Size a tethered drone’s DC conductors and voltage. Solve elastic cable shape in crosswind, endpoint tension, extra thrust and the altitude limit along a specified payout route.
Rotor Blade Icing, Power Penalty and Electrothermal Anti-Icing
Wired White v2 Calculate rotor ice growth, Messinger freezing fraction, blade-element power penalty, and running-wet or evaporative heater demand along the blade.
Ion Wind (EAD) Thruster: Thrust, Corona and Collector Grid
Wired White v2 Estimate ion-wind thrust, thrust density and thrust per watt from corona onset and Townsend current. Size emitter arrays, collector grids and repeated stages.
Drone Propeller Gyroscopic Moment and Shaft Bearing Loads
Wired White v2 Calculate drone propeller gyroscopic moments, two-blade oscillation, motor shaft bending and bearing reactions, with a Goodman fatigue check.
Drone Parachute: Deployment Height, Descent and Autorotation
Wired White v2 Model emergency drone parachute descent from hover or cruise, including deployment height, opening load, touchdown energy, rotor states and hybrid glide.
Drone & eVTOL Hover: Altitude, Cold Battery and Thrust Margin
Wired White v2 Check altitude and cold-weather hover using ISA density, rotor RPM, blade-loading and tip-Mach limits, battery voltage sag, thrust reserve and hover time.
Coaxial Rotor Calculator: Spacing, Interference and Efficiency
Wired White v2 Compare rotor spacing, diameter ratio and pitch offset using coupled blade-element momentum theory. Find a torque-balanced hover design and its figure of merit.
Fuel Cell–Battery Cargo Drone: ECMS Power Split and Hydrogen Use
Wired White v2 Simulate a cargo drone mission with SOC-dependent ECMS, PEM polarization and a dynamic battery. Compare hydrogen use and climb support with a rule-based split.
Tilt-Wing eVTOL Transition Corridor, Stall and Pitch Trim
Wired White v2 Map airspeed against wing tilt using coupled force and pitch equilibrium, propeller slipstream, wing stall, thrust and power limits. Inspect a chosen transition path.
eVTOL Rotor Noise Calculator: BVI and Ground dBA Contours
Wired White v3 Estimate directional eVTOL approach noise from rotor loading, thickness, blade-vortex interaction and broadband self-noise. Explore ground dBA contours and the BVI contribution.
eVTOL Rotor Wake Interaction and Thrust Loss
Wired White v2 Estimate thrust loss at fixed power or added power at held thrust for interacting eVTOL rotors. Includes conservative contracting vortex-ring wakes, forward-flight skew and marked sensitivity sweeps.
Towel Warmer Moved Away from the Riser: Will It Heat?
Will a towel warmer moved to another wall still heat by gravity from the hot-water riser? Flow, temperatures and heat output for your pipes, bends and heights, with the stall and backward-flow cases.
Sectional radiator: flow extender (pseudo-diagonal connection)
Flow and temperature of every section of a sectional radiator connected on one side, diagonally, or through a flow extender tube (pseudo-diagonal), and the hole size that makes a perforated extender heat evenly.
Lid-Driven Cavity: Reynolds Number, Vortex and Grid Convergence
Wired White v2 Calculate cavity Reynolds number, primary vortex position and centreline velocities. Compare two CFD grids, inspect residuals and animate tracers through the computed flow.
Drug Dosing Calculator: One- and Two-Compartment Pharmacokinetics
Wired White v2 Simulate repeated oral doses or IV boluses with one- and two-compartment pharmacokinetics. Compare accumulation, steady-state peaks, troughs and clearance scenarios.