Experimental verification of the corrected transfer function of a piezoelectric laminate beam

Active Vibration Control of a Smart Beam by Using a Spatial Approach

“…For a more detailed description of the pointwise controller design, the interested reader may refer to the reference (Kırcalı, 2006a and2006b). However, in order to give the idea of the previous studies, the comparative effects of the spatial and pointwise …”

“…Moheimani (2000d) and Moheimani et al (2000c) developed their corresponding approach to the spatial models which are obtained by different analytical methods. Moheimani (2006b) presented an application of the model correction technique on a simply-supported piezoelectric laminate beam experimentally. However, in all those studies, the damping in the system was neglected.…”

“…So, the spatial ∞ H controller resists more robustly to the constant resonant excitation than the pointwise one. The implementations of the controllers showed that both controllers reduced the vibration levels of the smart beam due to its first two flexural modes in comparable efficiency (Kırcalı, 2006a and2006b). The effect of both controllers on suppressing the first two flexural vibrations of the smart beam over entire structure can be analyzed by considering the ∞ H norm of the entire beam.…”

Closed-loop optimal control-enabled piezoelectric microforce sensors

“…ω s (r, t) is the elastic deflection of the flexible composite beam caused by the microforce f c (t) at the sensor tip, and 0 ≤ r ≤ L. E 9 is the Young's modulus of the PVDF sensing layer. In addition, since the small temperature and electric field effects are omitted in the PVDF sensing layer, (2) denotes that the main stress results from the applied force/torque [12], [13]. For the complete modelings of axial stress of piezoelectric sensors, refer to [7] and [16].…”

“…In the recent years, piezoelectric materials have been studied extensively for use as smart structures [14], or as sensors and actuators used to control the vibration of elastic structures [12], [13]. However, most of the above work do not focus on the issues of forcesensing performance.…”