Rotocraft TRIZ Cases
- Active Vibration Control Using Real-Time Avionics Data
A vibration controller adapts control parameters via real-time avionics data, reducing structural impact during transient flight conditions.
- Rotor Assembly With High Lock-Number Blades and Flexures
High lock-number blades with flexures enable in-plane lead-lag motion, eliminating dampers while reducing rotor mass and vibration.
- Helicopter Transmission Mount for Dynamic Tilt Control
Dynamic transmission tilt adjusts rotor mast orientation to reduce component wear and eliminate ballast requirements.
- Helicopter Rotor Drive System with Electromagnetic Pitch Control
Electromagnetic induction actuates individual rotor blade pitch to resolve low thrust change rates at variable speeds.
- Aircraft Cable Cutting Device with Segmented Upstream and Downstream Edges
Segmented cutting edges in an aircraft cable severing jaw distribute mechanical tension across multiple zones.
- Rotor Hub Cup-Shaped Body Friction Press-Fit Fairing
Friction press-fit connection secures fairing to hub body, preventing rotation and blow-off while reducing weight.
- Coaxial Rotor Aircraft with Rear Ducted Fans for Yaw Control
Extracting yaw control from the main lift system via rear ducted fans reduces vibratory loads and simplifies operation.
- Stiff-in-Plane Rotor Hub with Flexure Yoke
A flexure-type twist-shank yoke enables blade pitch and flapping motion through elastic deformation.
- Aircraft Rotor Blade Segmentation for Weight Reduction
Segmented rotor blades reduce inboard size and weight by separating aerodynamic shell from load-bearing flexbeam.
- Counter Rotating Torque Rotor for Rotary Wing Aircraft
A counter rotating torque rotor generates drag torque opposite to the lifting rotor direction.