Without Power Ampliication TRIZ Cases

Fuse pins and spring-biased nut portions keep the secondary load path unloaded until primary screw-nut failure triggers engagement.

Control wheel force is compared with expected roll input to detect jams and adjust spoilers when hydraulic response is limited.

Nested flexible ring gears and a wave generator deliver high reduction and torque in a compact actuator drive for thin-wing aircraft.

A dual-actuator aircraft steering layout prevents jamming failures while reducing transmission complexity, weight, and heat buildup.

A ball ramp and bistable diaphragm spring clutch improves aircraft wing overload triggering accuracy while avoiding speed and temperature effects.

Oblique camming legs shift landing-gear actuator loads into a tube, blocking high axial forces without oversized or energy-hungry steering mechanisms.

A solenoid-driven output lever disconnects a jammed flight control actuator, preserving aircraft control without high pilot force or sudden movement.

Two independent EMAs drive the same control surface through a horn arm and rotary hinge-axis actuator, improving jam tolerance with less weight.

Form-fit pawls and ball cages block reverse torque in aircraft steering shafts without friction brakes, reducing wear, heat, and delay.

Linked hydraulic actuators, brakes, and motors keep aircraft flight control members synchronized and held in position when pressure is unavailable.

Multiple clutches in a common high-lift driveline enable independent inboard and outboard actuation while cutting gearbox complexity, weight, and noise.

A disengaged secondary lead reveals ball screw wear through efficiency loss and endplay changes, enabling maintenance before actuator failure.

Non-symmetrical spiral grooves on no-back brake disks drain lubricant films at high speed, preserving friction and motion control.

A common power distribution unit uses a T-gearbox, clutches, and brakes to actuate slats and flaps independently with less weight and complexity.

Dual flight control computers and self-checking actuators preserve high SCAS authority by isolating a failed actuator and rebalancing control.

A lever-mounted linear actuator and helical connection shift crank phase without deforming harnesses, cutting linkage weight and balance complexity.

Two parallel sensing paths with different ratios replace bulky reduction gears, improving actuator position accuracy while cutting size and cost.

A portable external oil cooler keeps hydraulic fluid from overheating during unfueled aircraft tests using 120 VAC air-cooled heat exchangers.

Redundant ball nut arms expose critical outer surfaces for visual fault detection while preserving backup load paths in aircraft actuators.

Integrated nut and stop features indicate screw freeplay in a horizontal stabilizer actuator, enabling precise wear inspection without complex tools.

A phase-shifted return lever uses a fixed linear actuator and helical link to avoid moving harnesses and compensation masses in flight controls.

A gearbox placed between independent partial drives limits fire damage propagation and keeps aviation actuator control available after failures.

A booster coil adds magnetic braking support to cut response time to un-commanded motion while enabling proportional speed control and lower wear.

Built-in nut and stop alignment features reveal screw assembly freeplay, enabling simple wear inspection for safer stabiliser actuator operation.

An adjustable sheet plate simplifies THSA lower attachment fitting, cuts manufacturing cost, and visibly indicates primary load path failure.

A single integrated actuator adds stick-force cueing and power boost to mechanical flight controls while preserving manual reversion.

A floating bushing, failsafe plate, and tightening ring remove secondary-path clearance to prevent THSA flutter and improve load transfer.

A joined flex spline with brazed flexible gears spreads load in compound harmonic drives to cut stress and fatigue in thin aircraft wings.