Rotating Vibration Suppression TRIZ Cases

Electric machine positioned between flywheel and clutch decouples drive vibrations while enabling motor generator operation.

A propeller shaft anti-resonance apparatus uses a sliding mass body and return spring to adjust natural frequency dynamically.

A torsional vibration damper support uses a single window to house connecting and rolling members.

Replacing compression springs with a thin film structure reduces housing volume and simplifies the assembly process.

Shell-cast hub utilizes casting gate and draft angles to secure elastomeric strip, eliminating costly pre-machining steps.

Elastic assembly inside hollow body generates balancing moment to counteract robot arm gravity.

Replacing heavy conventional liners with low-density viscoelastic soy foam reduces propeller shaft weight while maintaining effective NVH damping.

Segmenting the vibration spectrum into integer and non-integer multiples allows dynamic counter-torques to reduce amplitude below acceptable thresholds.

Lead-lag dampers aligned with the pitch change axis provide consistent damping force across varying blade angles.

A dual mode tuning dynamic damper uses a hollow main bridge and auxiliary bridge to support the damper mass for lateral frequency adjustment.

Variable hysteresis torque from dynamic damper suppresses torque fluctuation peaks at high speeds without increasing device complexity.

Axially movable central disk supported by springs prevents overloading and reduces axial vibration transmission in vehicle drive trains.

Pivoting pendulum absorbers limit torsional vibration amplitudes, preventing driveline fatigue while a gearbox alters tuning order for compact design.

A hingeless negative stiffness structure uses flexible tensile and curved compressive members to generate mechanical displacement.

A propeller shaft design extends an outer paper portion to contact a dynamic damper ring member, preventing internal component interference.

An asymmetric split ring spring damper prevents dislocation during gas turbine transportation by generating restoring forces that counteract external loads.

Multiple dampers and centrifugal pendulums handle varying torque levels, resolving adaptability versus complexity trade-offs.

Pendulum damping device counters gravity-induced displacements through geometric rolling tracks and elastic washers, eliminating complex spring systems.

A pendulum absorber system uses a dynamic weight to attenuate torsional vibrations within vehicle drivetrains.

A dynamic vibration absorber integrates a torque limiting part to restrict rotational force transmission between components.

A torque fluctuation inhibiting device uses centrifugal elements and cam mechanisms to generate circumferential force that reduces relative displacement between a rotor and mass body.

Guide rollers eliminate gaps between centrifugal elements and recessed portions, preventing hysteresis in torsional characteristics.

Interposition members maintain constant gaps between pendulum bodies to guide torsional oscillation filtering.

A pendulum vibration damper retainer uses a restriction member to prevent axial movement and tilting of the holding component.

Cutout in pendulum flange reduces axial leverage on spacer bolts, eliminating bending forces that shorten connection service life.

A tunable gas spring damping system adjusts real-time volume and pressure to match dominant vibrational frequencies in drill strings.

An inertia member coupled via a second elastic member functions as a dynamic damper, expanding the lockup region to improve fuel efficiency at low speeds.

Segmenting the flywheel into rotors with adjustable moments of inertia resolves the trade-off between vibration damping and engine responsiveness.

A foamed drive shaft damper absorbs vibrations through viscoelastic damping to reduce noise in automotive applications.

A centrifugal pendulum with two distinct masses dampens multiple excitation orders in internal combustion engines.

Magnetic suspension decouples under high force, resolving stability versus shock absorption trade-offs.

A compact vibration damper converts linear mass movement into rotational motion via a crank mechanism and rotary damper.

A flange and snap ring axially position the electromagnet, reducing spring force requirements and mounting costs.

Press-fit cylindrical damper insert mitigates harmonic vibration in aircraft brake systems, reducing component damage risk.

Integral intermediate pieces on the flange secure leaf spring assemblies via a clamping ring, eliminating inner rings to reduce assembly complexity.

Segmented eccentric mechanism decouples spring travel adjustment from suspension damping to simplify vehicle seat assembly.

A decoupler uses a bent transition portion in its biasing member to urge a damping member against a friction surface for consistent torque.

Interconnected vibration damper units form a closed ring around wind turbine ring gears to absorb torsional vibrations with minimal space.

Viscoelastic lamination on the hollow shaft inner surface dissipates vibratory energy through shear deformation, reducing vibration modes and development time.

Automotive driveline disconnect assemblies use polymeric dampers and non-flat tooth profiles to absorb engagement forces.

Axial protrusions on absorber masses utilize unused space to boost intermediate inertia without compromising structural integrity.

Inverting assembly to fix the back plate from the outside reduces damper weight and structural complexity while maintaining torsional vibration absorption.

A damping device fixes torque transmission elements with a high hardness fixing member to prevent deformation under extreme centrifugal stress.

Spaced axial and radial springs reduce friction in a crank pulley decoupling device, improving durability against instantaneous speed changes.

Dynamic damper eliminates friction mechanisms to stabilize attenuation performance across the normal rotational speed range.

Nesting the pendulum plate axially between piston and damper components increases effective inertia while minimizing axial space requirements.

Nested shaft segments with slots increase torsional compliance, reducing crankshaft stress in driveline electric machines.

A vibration control system uses a frictional power transfer assembly to adjust vibratory force output from rotating mass discs.

A lightweight aluminum hub uses a steel reinforcing plate to secure mounting joints.

Spacing bolts in flange cutouts prevent absorber collision at low speeds, reducing drivetrain noise.