This paper discusses the design and fabrication of a prototype MEMS microactuator and vibration sensors, and controller design for suspension vibration compensation in disk drives. The microactuator utilizes parallel-plates actuation and comb-finger position sensing. An electrical isolation MEMS fabrication technique is utilized to increase the actuation force. An LQG method is proposed for vib...

 Abstract—The power flow analysis of a gearbox isolation system is carried out in accordance with the structural characteristics of a gearbox. Numerical simulation is conducted to study the influence of major structural parameters on the power flow of a gearbox isolation system. The present research can provide a theoretical basis for the vibration isolation system design of a gearbox.

The vibration stability requirements for the Next Linear Collider (NLC) are far more stringent than for the previous generation of Colliders. To meet these goals, it is imperative that the effects of vibration on NLC Linac components from near-field sources (e.g. compressors, high vacuum equipment, klystrons, modulators, pumps, fans, etc) be well understood. The civil construction method, wheth...

This paper describes a theoretical and experimental investigation into an active four-mount vibration isolation system, in which electromagnetic actuators are installed in parallel with each of the four passive mounts placed between a three-dimensional piece of equipment and a vibrating base structure. Decentralized velocity feedback control is applied, where each actuator is operated independe...

Vibration isolation control is the critical issue to guarantee the performance of various vibration-sensitive instruments and sensors in practical engineering systems. In this paper, single network adaptive critic (SNAC) based controllers are developed for vibration isolation applications. The SNAC approach differs from the typical action-critic dual network structure in adaptive critic designs...