Survey of Active Structural Control and Repair Using Piezoelectric Patches
نویسندگان
چکیده
منابع مشابه
Broadband control of plate radiation using a piezoelectric, double-amplifier active-skin and structural acoustic sensing
The potential of a piezoelectric, double-amplifier active-skin with structural acoustic sensing (SAS) is demonstrated for the reduction of broadband acoustic radiation from a clamped, aluminum plate. The active-skin is a continuous covering of the vibrating portions of the plate with active, independently controllable piezoelectric, double-amplifier elements and is designed to affect control by...
متن کاملDetection of Structural Cracks Using Piezoelectric Active Sensors
This study proposes a novel approach to identifying crack damage common to metallic structural elements under extreme cyclic loading. Using two piezoelectric pads surface mounted to a structural element, broadband signals can be used to locally excite the element using one pad and the corresponding system response measured with a second pad. An auto-regressive with exogenous input (ARX) system ...
متن کاملA discussion on the collocated active control of beams with piezoelectric patches
The structure of the control matrix of a direct strain rate feedback, based on collocated piezoelectric patches operated in surface mode, is analytically obtained in the elementary case of a simply supported beam. This kind of control, often improperly called "velocity feedback" because of a formal analogy with the equation of a classical velocity controlled system, has been exploited by severa...
متن کاملEfficiency of Active Control of Beam Vibration Using PZT Patches
This study is aimed to explore efficiency problems of using PZT patches in active vibration control of beams. The PZT patches are surface-bonded as actuators and strain gages are used as sensors. Distributed moment forcing mode is adopted to derive the control authority of actuators. Uniform beam model is applied when the mass and stiffness of PZT patches are ignored. Stepped beam model is then...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Actuators
سال: 2015
ISSN: 2076-0825
DOI: 10.3390/act4020077