Arm With Actuators TRIZ Cases

A stiffener mounted on a disk drive motor limits bending to improve stroke efficiency and resonance performance.

A stacked d33 mode PZT microactuator uses a stiff constraint layer to increase effective stroke length.

Integrating deformable arm portions into the microactuator mounting section prevents deformation during handling while maintaining sway-direction accuracy.

Integrally formed stainless steel PZT limiters constrain vertical displacement of microactuator piezoelectric elements in dual stage suspensions.

Etched load beam regions isolate piezoelectric elements from handling shocks, resolving reliability trade-offs between stroke and bandwidth.

A victim feedforward signal compensates microactuator positioning errors caused by aggressor actuator vibrations, enhancing seek accuracy.

Stiffeners mounted on dual stage actuation motors balance gimbal rigidity to limit twisting, increasing stroke efficiency by over 70 percent.

A suspension assembly uses a counter-weight to align the moving mass center of rotation with its center of mass.

An etched cavity in the load beam houses a PZT microactuator, increasing sway resonant frequency and reducing vibration coupling.

Shear mode micro-actuator compensates head position via non-contact sensors to resolve mechanical disturbance mis-positioning errors.

Relocating piezoelectric actuators directly onto the flexure tongue eliminates intermediate structural dynamics that cause unwanted vibrations.

Non-right angle parallelogram PZT actuators shift the rotation center on disk drive mount plates to improve head positioning precision.

A moment balancer equalizes rotational moments in a flexure gimbal assembly, reducing sway mode gain and improving servo bandwidth.