Inertial actuator with multiple flexure stacks

Details Inertial actuator with multiple flexure stacks Inertial actuator with multiple flexure stacks

2007-10-30

2007-10-30

Tamai, Karl (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Reciprocating

C310S014000, C310S036000, C335S220000

Reexamination Certificate

active

10967771

ABSTRACT:
An inertial actuator for active vibration control utilizes a single cylindrical actuator module of the “voice coil” type. A moving armature assembly, including a soft iron shell with a tubular sleeve coaxially surrounding a core with two permanent magnets and corresponding pole plates, is suspended compliantly by a flexure assembly including a multiple-stack array of shaped flexure strips and a pair of end support flexure plates mounted to a base. Two magnetically charged annular air gaps at the pole plates in the moving armature traverse two corresponding annular coils wound in a tubular bobbin that extends as a heat-sinking mounting column attached to the base. This form of inertial actuator provides cost benefits along with improved performance and reliability due to the stability of the moving parts and uniformity of linear motion.

REFERENCES:
patent: 5231336 (1993-07-01), van Namen
patent: 5896076 (1999-04-01), van Namen
patent: 5973422 (1999-10-01), Clamme
patent: 5975510 (1999-11-01), Miyazaki
patent: 6935471 (2005-08-01), Noe

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