Benefits and Challenges of Over-Actuated Excitation Systems | Zendy

Norman Fitz-Coy | Zendy; Vivek Nagabhushan | Zendy; Michael T. Hale | Zendy

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Benefits and Challenges of Over-Actuated Excitation Systems

Author(s) -

Norman Fitz-Coy,

Vivek Nagabhushan,

Michael T. Hale

Publication year - 2010

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2010/435740

Subject(s) - actuator , control engineering , control theory (sociology) , excitation , servo , computer science , servomechanism , degrees of freedom (physics and chemistry) , engineering , mechanical engineering , control (management) , electrical engineering , physics , artificial intelligence , quantum mechanics

This paper provides a comprehensive discussion on the benefits and technical challenges of controlling over-determined and over-actuated excitation systems ranging from 1-DOF to 6-DOF. The primary challenges of over-actuated systems result from the physical constraints imposed when the number of exciters exceeds the number of mechanical degree-of-freedom. This issue is less critical for electro-dynamic exciters which tend to be more compliant than servo-hydraulic exciters. To facilitate the technical challenges discussion, generalized methods for determining the drive output commands and the actuator input transform is presented. To further provide insights into the problem, over-actuated 1-DOF and 6-DOF examples are provided. Results are presented to support the discussions.

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