Mechanical Oscillations Control TRIZ Cases

See how a magneto-rheological fluid damper uses dynamic voltage control to reduce tub vibration

See how adaptive phase control dynamically adjusts command signal phase angles to cancel both f

By tracking balance-ball positions, the washer drum can accelerate through resonance with less tub movement and better load redistribution.

Adaptive phase control tunes cancellation signal phase across harmonics to suppress cryocooler vibration under changing temperature and orientation.

Different mounting rigidities across battery module rows shift natural frequencies to suppress resonance and reduce EV road noise.

Sensors and actuators actively counter cable vibration from modulated currents, cutting audible noise and structural disruption in EV lines.

Ramp, impulse, and steady-drive tests build a vibration model that controls electric machine resonance without complex modal analysis tools.

An adjustable pendulum rod tracks forcing frequency to sustain resonant vibration and improve broadband piezoelectric energy harvesting.

Measurement signals are transformed into virtual degrees of freedom to target tonal drivetrain vibrations and cut noise emissions.

Audio filtering and manual tempo-note inputs are combined to drive vibration motors with more expressive tactile feedback for music perception.

Dynamic delay-time smoothing shortens small-move servo positioning while preventing vibration through moving-average command generation.

Motor-current-based speed modulation cuts regenerative energy and reversal stress in reciprocating load drives without braking resistors.

Rotor speed and phase modulation spreads multi-rotor UAV tonal noise across frequencies, reducing nuisance in populated areas.

Pulse current combined with vibration lowers yield limits in high-strength metals, improving residual stress relief without thermal treatment.

Continuous intake and exhaust valve control shapes chamber water height and velocity profiles for more stable, customizable wave sections.

Test-signal frequency detection lets the processor identify a connected vibrator's operating frequency for stable aerosol generation.

Neural network control uses voltage or vibration signals to regulate speed and thrust in vibration-type actuators without speed or torque sensors.

Spectral analysis of sensor time-series signals predicts limit cycle amplitude and instability proximity without large oscillation excitation.

Separated pre- and post-exposure vibrations let users recognize long-exposure start and end without disturbing image quality.

Angled ToF sensors create overlapping detection zones that cut image-sensor cost and processing load while improving robot mapping and localization.

Electrohydraulic servo control and sensor feedback let a marine vibrator deliver strong 2-5 Hz output for more accurate seismic inversion.

Welded conductive layers join vibration parts and carry signals, cutting thickness and weight while improving sound pressure.

Dual vibration cues before and after electronic shutter exposure help users recognize long-exposure timing without degrading image quality.

An intermediary control module synchronizes viewer and model motors or heaters in real time, improving chat-based interaction without direct device coupling.

Distributed sensors and actuators create virtual floor stiffness to damp vibrations while preserving earthquake-resistant building behavior.

Standardized piezoelectric sensors and actuators cut active damping design cost while adapting control to real vibration frequencies.

Movable counterweights tune exhaust pipe natural frequency in variable-frequency screw units to avoid resonance, noise, and pipe damage.

Frequency-tuned supports balance load capacity and vibration output while isolating multiple sensory acoustic vibrators to reduce interference.

Timed acceleration segments cancel stage resonance in sequencing imaging, reducing z-axis vibration without slowing data collection.

Microphone feedback synchronizes fan speed, frequency, and phase to cut computer cooling noise and improve active noise cancellation.

Rotating-mass circular force generators cut cabin noise and vibration from cylinder deactivation without heavy linear actuators.

Piezoelectric vibration drives airflow through orifices to cool compact devices with less noise, lower power use, and no rotating blades.

By avoiding integer shaft speed ratios, this case reduces cross-shaft resonance and vibration while enabling lighter damping in rotating machinery.

Machine learning predicts UAV noise from flight and environmental data, then emits anti-noise to cut perceived sound in changing conditions.

Periodic pumping at the resonator difference frequency boosts mode localization sensitivity while avoiding fragile weak mechanical coupling.

Optimized force actuator placement lets an elastic panel excite selected resonant modes with one common signal, reducing distortion and electronics complexity.

Counter-rotating masses with adjustable radius and speed create a controllable force vector to suppress rotor hub vibrations and reduce fatigue.

Balancing only one sinusoidal encoder signal corrects Lissajous angle errors while reducing circuit scale and adjustment workload.

Strategic actuator placement and a common signal source selectively drive panel modes while cutting electronics, distortion, cost, and failure points.

Hydraulic pressure feedback adapts actuator oscillation to cut mechanical friction while limiting harmful pressure oscillations.

PI control tuned near the drill string’s fundamental frequency reduces effective inertia and damps both basic and higher-mode stick-slip.

Dynamic anti-resonance tracking keeps ultrasonic welding aligned with transducer frequency drift to prevent false welding and unstable joints.

Active vibration control actuators placed in the rotorcraft tail wake zone cut tail-surface vibration and in-plane loads across airspeeds.

Sensors and actuators counter frame vibrations in aerial vehicles to cut noise, improve stability, and reduce mechanical stress.

Motor current signals let each printing-unit drive locally damp torsional vibration across the gear train without complex modal analysis.

Rigidity and position tuning of elastic member groups shifts translational and rotational resonance without adding isolators or weight.

Resistance sensors adjust sonotrode vibration and motion to melt and inject plastic precisely while limiting material degradation.