Linear precision inertial actuator built for low-impact in-situ installation on structures with vibration problems

Clark A. Updike; Scott W. Greeley; James A. King

doi:10.1117/12.328557

29 October 1998 Linear precision inertial actuator built for low-impact in-situ installation on structures with vibration problems

Clark A. Updike, Scott W. Greeley, James A. King

Author Affiliations +

Proceedings Volume 3429, Current Developments in Optical Design and Engineering VII; (1998) https://doi.org/10.1117/12.328557
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

In the process of designing a control actuator for a vibration cancellation system demonstration on a large, precision optical testbed, it was discovered that the support struts on which the control actuators attach could not be disassembled. This led to the development of a Linear Precision ACTuator (LPACT) with a novel two piece design which could be clamped around the strut in-situ. The design requirements, LPACT characteristics, and LPACT test results are fully described and contrasted with other earlier LPACT designs. Cancellation system performance results are presented for a 3 tone disturbance case. Excellent results, on the order of 40 dB of attenuation per tone (down to the noise floor on two disturbances), are achieved using an Adaptive Neural Controller (ANC).

Citation Download Citation

Clark A. Updike, Scott W. Greeley, and James A. King "Linear precision inertial actuator built for low-impact in-situ installation on structures with vibration problems", Proc. SPIE 3429, Current Developments in Optical Design and Engineering VII, (29 October 1998); https://doi.org/10.1117/12.328557

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available