1Mechanical Engineering Department, PVP Siddhartha Institute of Technology, Kanuru, Vijayawada, A.P., India
2Structural Technologies Division, National Aerospace Laboratories, Bangalore, India
3VR Siddhartha Engg. College, Kanuru, Vijayawada, India
4Mechanical Engg. Dept., JNT University, Hyderabad, India
5Structural Technologies Division, NAL, Bangalore, India.
This paper presents the results of active vibration control (AVC) of a laminated composite cylindrical shell, equipped with piezoelectric composite actuators, Macro Fiber Composite (MFC) and PZT sensors. A four node, electro-mechanically coupled field consistent finite element formulation is made to model the shell vibration. Subsequently, a linear quadratic regulator (LQR) is designed in modal domain to conduct the vibration control simulation studies. The effectiveness of MFC in controlling shell vibration is evaluated. A selective modal space control approach (SMSC) is proposed to address the vibration suppression of critical elastic modes.
Active vibration control, Composite cylindrical shell, MFC, actuator
