GA-OPTIMIZED SEMI-ACTIVE FUZZY BASED CONTROLLER FOR SEISMIC VIBRATION REDUCTION OF A 3 DOF STRUCTURE WITH VELOCITY FEEDBACK

• Type: Article in International Conference Proceedings Book
• Date: 2017

Authors

Cesar, MB (Author) Other; Rui Carneiro de Barros (Author) FEUP

Conference proceedings International

Title: Mechanics and Materials in Design

Pages: 1877-1878

M2D2017 - 7 th International Conference on MECHANICS AND MATERIALS IN DESIGN

Albufeira/Portugal, 11-15 June

Indexing

ISI Web of Knowledge - 0 Citations

Other information

Authenticus ID: P-00N-TVR

Abstract (EN): This paper aims to evaluate the effectiveness of a semi-active fuzzy logic based controller (FLC) with velocity feedback to reduce the response of a three degree-of-freedom (DOF) system representing a three floor shear building frame under seismic excitation. The proposed FLC controller uses the first and third floor velocity measurements to determine the desired control signal to command a MR damper. In this study the actuator is rigidly attached between the first floor of the structure and ground. The membership functions of the FLC were optimized using a genetic algorithm (GA) in order to obtain the best relationship between the controller inputs and output according with a predefined training data. The comparison between the uncontrolled and the controlled structural responses is used to assess the performance of the proposed semi-active FLC controller.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 2