Alighting Gear TRIZ Cases

A passive elastic telescopic leg lets a rotor-driven robot sustain continuous hopping with adjustable jump height while remaining stable in flight.

Wind sensing and landing gear motors rotate the aircraft into the wind for takeoff, cutting energy use and delicate propulsion maneuvers.

Separate fuse members for linear and torque loads cut false failures in aircraft tow-bar fittings while protecting landing gear from overloads.

Bias-based nose wheel offset control helps aircraft hold heading during ground manoeuvres while limiting lateral movement under asymmetrical thrust.

Adaptive PID nosewheel control expands steering authority against asymmetrical thrust while keeping ground manoeuvres within safe lateral limits.

Targeted hopping between field locations combines imaging and onboard treatment to improve weed detection while cutting chemical use and cost.

A closed front wing section with staggered engines simplifies tail-sitter structure while improving aerodynamic efficiency and cruise viability.

An integrated spring resists lower-member rotation during landing gear travel, replacing compass links to improve stability and reduce mass.

A shared drive links the top lens and landing gear, cutting UAV weight and cost while keeping panoramic images clear during flight.

A monolithic steering collar and ring gear simplifies nosewheel steering, improving reliability, maintenance ease, and steering range.

Differential thrust and nosewheel actuation let aircraft pivot near the center of gravity and turn within one wingspan in confined spaces.

Integrated aircraft sensors and visual indicators give tug operators real-time proximity feedback to reduce collision risk during towing.

A landing disc triggers a low-force WOW switch before shock absorber compression, giving VTOL aircraft faster, more reliable ground contact feedback.

A shared motor and transmission synchronizes lens elevation and landing gear retraction to avoid image blocking while reducing UAV weight and cost.

A landing disc and switch assembly detects touchdown or lift-off before shock absorber compression, giving faster and more reliable WOW feedback.

A tubular axle body routes power and signal harnesses to the wheel motor, protecting wires from impacts while enabling easy motor removal.

Remote hydraulic components can cause pressure drops and slow response; split servo and main circuits localize control near critical components.

A pressure relief valve routes fluid into the metering pin channel during hard landings, limiting pressure spikes and structural stress.

This case uses landing-gear force components and stress envelopes to detect hard landings without dedicated sensors.

A pivoting arm and actuator separate braked and motorized wheel contact to manage ground forces and protect motorized wheels.

Dynamic brake control adjusts torque application rate using aircraft speed and pedal deflection signals to reduce peak dynamic loads on landing gear.

A spring housing and plunger assembly absorbs landing impact forces through elastic compression.

A steering collar rotates about a sun gear via a crankshaft drive to simplify the nosewheel steering apparatus.

Nesting a capacitor inside the torque link hollow section protects the sensor from debris while measuring structural strain.

Replacing gearboxes with electric motors reduces propulsion weight and acoustic signature while maintaining flight reliability.

Mechanical tiller replaces RF remote controls to eliminate interference, enabling precise UAV positioning on aircraft carrier decks.

An adjustable fork mechanism modifies side member spacing to accommodate different aircraft wheel configurations.

Processor defines velocity vectors from rotation data to detect forces on aircraft portions without additional sensors.

An electric motor inside the wheel support housing adjusts angular position, eliminating torque links and simplifying shock absorber design.

Fixing the upper bearing to the stationary cylinder shifts wear from the piston, allowing lighter materials without durability loss.

A slip-reduction control unit adjusts the rate of change of steerable landing gear angles based on aircraft motion and steering parameters.