Six‐degree‐of‐freedom active vibration isolation using a stewart platform mechanism

Intelligent Automation, Inc. has performed a study of a six‐degree‐of‐freedom (dof) active vibration isolation system based on a Stewart platform mechanism to be used for precision control of a wide range of space‐based structures as well as earth‐based systems. This article presents part of the study results, which includes a new Terfenol‐D actuator design and analysis, a design of a Stewart platform as a vibration isolation device, and robust adaptive filter algorithms for active vibration control. Prototype hardware of a six‐dof active vibration isolation system has been implemented and tested. About 30 dB of vibration attenuation is achieved in real‐time experiments.