Vibration and stability control of smart composite rotating shaft

Ohseop Song; Nam-Heui Jeong; Liviu I. Librescu

doi:10.1117/12.388788

19 June 2000 Vibration and stability control of smart composite rotating shaft

Ohseop Song, Nam-Heui Jeong, Liviu I. Librescu

Proceedings Volume 3984, Smart Structures and Materials 2000: Mathematics and Control in Smart Structures; (2000) https://doi.org/10.1117/12.388788
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

A dual approach based on both the structural tailoring and piezoelectric strain actuation, aimed at controlling the free vibration of rotating circular shaft subjected to axial forces is presented in this paper. Due to involvement in these systems of gyroscopic forces and, consequently of the possible occurrence of the divergence and flutter instabilities, implementation of the dual control methodology shows a high degree of efficiency toward postponement of the occurrence of these instabilities. The structural model of the shaft as considered in this paper is based on an advanced thin-walled beam that includes the effects of transverse shear, anisotropy of constituent materials, rotary inertias, etc. The displayed results reveal the synergistic implications of the application of this dual technology toward enhancing the dynamic response characteristics of these systems and expanding the domain of stability.

Citation Download Citation

Ohseop Song, Nam-Heui Jeong, and Liviu I. Librescu "Vibration and stability control of smart composite rotating shaft", Proc. SPIE 3984, Smart Structures and Materials 2000: Mathematics and Control in Smart Structures, (19 June 2000); https://doi.org/10.1117/12.388788

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