Experimental study of model-based feedforward control of longitudinal wave transmission through hollow cylinders

Ion Pelinescu; Balakumar Balachandran

doi:10.1117/12.474677

15 July 2002 Experimental study of model-based feedforward control of longitudinal wave transmission through hollow cylinders

Ion Pelinescu, Balakumar Balachandran

Author Affiliations +

Proceedings Volume 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems; (2002) https://doi.org/10.1117/12.474677
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

Experimental studies of closed-loop control of longitudinal wave transmission through a hollow cylinder are presented in this article. Model studies coupled with experimental modal analysis are used to understand and characterize the actuator-strut ensemble, and a boundary control algorithm, which falls under the class of feedforward control schemes, is experimentally implemented. The algorithm is based on a partial differential equations (PDE) model of the strut-actuator system, and a combination of strain and acceleration measurements are used to solve the boundary-value problem in the implementation. Harmonic vibratory disturbances are transmitted in the frequency range extending up to 1 kHz, and it has been demonstrated that a vibration attenuation of up to 16 dB can be achieved by using a magnetostrictive actuator in this model-based control scheme.

Citation Download Citation

Ion Pelinescu and Balakumar Balachandran "Experimental study of model-based feedforward control of longitudinal wave transmission through hollow cylinders", Proc. SPIE 4701, Smart Structures and Materials 2002: Smart Structures and Integrated Systems, (15 July 2002); https://doi.org/10.1117/12.474677

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