Rotating Vibration Suppression TRIZ Cases

Applying tangential geometric offsets to aerodynamic profiles reduces synchronous forced response caused by coupling structure turbulence.

A feedforward and feedback controller pair manages torque commands for electric motor positioning.

A vibration control unit manages engine mount actuators using amplitude and phase variable control to suppress vibrations.

Centrifugal pendulum connects to inner disc carrier in hybrid drive module, eliminating clutch slip effects and simplifying vibration damping design.

Segmented flanges and radial flywheels resolve alternating torque complexity while enhancing damping through increased centrifugal mass.

A planetary gear torsional damper uses an inertial mass on the sun gear to absorb vibration energy.

A vibration damper mechanism with a resonator weight element and deformable member stabilizes rotor carrier structures.

Pre-twisting the damper enables precise ram installation, resolving time-consuming manual insertion and improving vibration attenuation.

Inverted stator within rotor assembly enables electromagnetic levitation, resolving stress and temperature management complexity in evacuated environments.

A torque fluctuation inhibiting device uses a cam mechanism to convert centrifugal force into circumferential force for damping.

Varying rolling element diameters improve guidance precision while eliminating separate collars to reduce manufacturing costs.

Axial vibration absorber placement alongside torsional damper stages minimizes constructed space while maintaining effective damping performance.

Composite aluminum and polymer layers reduce gear noise without increasing vehicle weight or sacrificing torque transmission strength.

An active engine mount uses an electromagnet to control a bypass valve for fluid flow between liquid chambers.

A rotary damper adjusts the contact position on viscoelastic bodies to stabilize vibration damping despite material aging.

A cam-driven stop block adjusts friction against a damping disc, resolving jamming and control issues in conventional tripod heads.

A movable ring adjusts position relative to a rotating shaft using elastic means to manage contact states.

An encapsulated inertia ring floats on an elastomeric core to resolve multi-directional vibration damping limits while enabling material replacement.

A fluid transmission apparatus couples a dynamic damper and centrifugal pendulum absorber to separate elements.

Asymmetric abutment placement increases pendular mass displacement amplitude and radial center of gravity position, improving vibration filtering effectiveness.

An elastic body with parallel and inclined contact surfaces absorbs axial and falling resonance modes in a rotating shaft, reducing vibration transmission.

Friction links between neighboring pendulum bodies limit gravity-induced displacement, maintaining filtering performance without adding spring complexity.

A speed-adaptive damper adjusts its natural frequency to reduce torsional vibrations, maintaining decoupling quality across varying engine excitation orders.

Electromechanical transmission apparatus uses a planetary gear system, electromechanical brake, and viscoelastic damper to manage actuation.

Replacing press-fit attachment with adhesive bonding eliminates cracking in nitrided steel springs while maximizing effective spring turns.

Radially staggered spring-mass and centrifugal-mass pendulum units reduce overall volume while maintaining effective damping across engine speeds.

A dynamic damper uses nonlinear torsional stiffness to elastically couple an inertia unit and base plate for rotational speed attenuation.

Tuned piezo elements dissipate mechanical vibration energy at resonance frequencies, resolving magnetic bearing instability.

Reducing tone wheel overlap with the inertial mass and adding viscoelastic damping lowers sound pressure levels by 6.5 dB at 1400 RPM.

Sheathed ropes embedded in cast metal parts dissipate vibration through inter-wire friction.

A dynamic vibration absorbing device uses a rotating mass part and elastic member to attenuate output-side member vibrations in an automobile torque converter.

A rotatable stop damper distributes impact forces across its circumference, preventing localized wear on the centrifugal pendulum mass.

Integrating centering and mounting into a single hardened turbine plate eliminates the separate hub, reducing torque converter weight and complexity.

A monolithic pulley-hub damper integrates inertia rings and elastomeric members to absorb angular vibrations directly.

Differential gas pressure lifts the rotor in an inertial energy accumulator, reducing bearing load and minimizing total energy losses from friction.

Cover ribs reinforce the housing against hydraulic pressure, preventing deformation that blocks rolling mass oscillation in torque converters.

Segmented return means in a coaxial damper increase blade drag natural frequency while suppressing ground resonance.

Dual-stage stiffness shifts transition torque near maximum engine speed, resolving decoupling quality issues at low torque speeds.

Radial welding replaces rivets on the pendulum mass carrier, expanding installation space and increasing inertia for better vibration damping.

Pre-formed carrier disk bores eliminate drilling chips that impair centrifugal pendulum function.

A vibration absorption device uses an oscillating flyweight and rolling bodies to filter engine vibrations in motor vehicle transmissions.

A torque fluctuation absorbing apparatus uses a plate member with arc-shaped and second rolling guide surfaces to transition mass members between loci.

Wobble decoupling structure connects guide elements to output sides for axial movement and rotational fixation.

A damped vibration absorber device reduces oscillations in rotating machine parts using an additional mass and elastic damping layer.

A reinforcing rib partitions an orifice passage in a fluid-filled cylindrical vibration-damping device to enhance structural strength.

Two asymmetrical sheet metal parts secure a radial damping element axially, reducing pendulum impact noise without increasing device complexity.

Abutment members protruding into axial spaces prevent rolling members from exceeding stop positions, ensuring reliable torsional oscillation filtering.

A centrifugal pendulum damping device uses layered elastomer materials to absorb mechanical vibrations and oscillations within rotating transmission systems.