Vibration Control Of Steel Frames Using Magnetorheological Dampers: A New Control Algorithm.

  • Arunvivek G.K. Department of Civil Engineering, Sri Shakthi Institute of Engineering & Technology, Coimbatore, India 641062
  • Saravanakumar R Department of Civil Engineering, K.P.R. Institute of Engineering &Technology, Coimbatore, India 641407
Keywords: Sensors, Accelerometers, Magnetorheological dampers, Vibration control, Semi – Active Isolation


Control technologies application to steel structure is mainly anticipated to enhance the structural performance against natural hazards. In particular smart base isolation system connected with semi-active isolator at the base with controllable semi devices gaining impulse for its efficiency and economic reasons. Generally the development of control design strategies through system dynamics concept had not been considered entirely for structural applications. Structural characteristics which help to divulge structural properties, hitherto flout by civil engineering circle are assimilated with control techniques to construct indices in modal and nodal coordinates for the endurance of the control action to utilize their fullest capabilities. In this study, an isolated 3D steel frame model is developed.  Magneto-Rheological dampers are fixed with 3D steel frame model which act as a smart control device. Besides, Force transducers and Piezoresistive Actuator in tandem with Deltatron conditioning amplifier are also used. Presently many techniques are employed for the optimum placement of actuators and sensors in vibration control systems. The concept of controllability-observability is used in these methods. The specific relationship between the vibration modes and controllability-observability simplifies this approach. This study envisaged the compatibility of force transducers along with triaxial and uniaxial accelerometers fixed at various trial spots on the model structure to quantify the damping force and absolute accelerations of the structure and the dampers individually, positioned in the system, against the excitation of the structure.


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How to Cite
G.K., A.; R, S. Vibration Control Of Steel Frames Using Magnetorheological Dampers: A New Control Algorithm. ijceae 2019, 1, 62-66.

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