Suppression of vibration with optimal actuators and sensors placement

Vibration Attenuation Timoshenko Beam Based on Optimal Placement Sensors/Actuators PZT Patches with LQR-MOPSO

The main objective of this study is to reduce optimal vibration suppression of Timoshenko beam under non-periodic step and impulse inputs. Cantilever beam was modeled by Timoshenko theory and finite element numerical method. Stiffness (K), mass (M), and damping (C) matrices are extracted. Then, in order to control structure vibration, piezoelectric patches were used due to simultaneous dual beh...

Optimal Placement of Actuators and Sensors for Vibration Active Control

Optimal placement of actuators and sensors is an important issue in vibration active control. An index for joint consideration of controllability and observability based on singular values of Hankel matrix is described at first, then an objective function according to the index is defined for actuator and sensor placement. A genetic algorithm procedure (GA) is adopted to solve the optimization ...

Vibration Attenuation Timoshenko Beam Based on Optimal Placement Sensors/ Actuators PZT Patches with LQR-MOPSO

Today, engineering structures have wide application in military equipment, industrial equipment, machines, robots, etc. How to make the engineering structures away from many damages, repairs, and other costs and how to control them in a way that their life reduction would be prevented are challenging problems for researches in recent decades. They are trying to find an appropriate control appro...

Optimal Vibration Control of a Model Frame Structure Using Piezoceramic Sensors and Actuators

This research concerns the active vibration control of a three-story model structural frame by using piezoceramics smart materials, in particular lead zirconate titanate (PZT), in the form of patches. These PZT patches are surface-bonded on the structure and function as actuators and sensors. To assist the control design, system identification is first performed. To excite the frame for identif...

Optimal Placement of Collocated Sensors and Actuators in FRP Composites Substrate