Reliability-based optimization of an active vibration controller using evolutionary algorithms

Saraygord Afshari, S ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1117/12.2260031
  3. Publisher: SPIE , 2017
  4. Abstract:
  5. Many modern industrialized systems such as aircrafts, rotating turbines, satellite booms, etc. cannot perform their desired tasks accurately if their uninhibited structural vibrations are not controlled properly. Structural health monitoring and online reliability calculations are emerging new means to handle system imposed uncertainties. As stochastic forcing are unavoidable, in most engineering systems, it is often needed to take them into the account for the control design process. In this research, smart material technology is utilized for structural health monitoring and control in order to keep the system in a reliable performance range. In this regard, a reliability-based cost function is assigned for both controller gain optimization as well as sensor placement. The proposed scheme is implemented and verified for a wing section. Comparison of results for the frequency responses is considered to show potential applicability of the presented technique. © 2017 SPIE
  6. Keywords:
  7. Active Vibration Control ; Aircraft Structures ; Optimal Sensor Placement ; Optimization ; Probability Density Evolution ; Structural Reliability ; Aircraft manufacture ; Airframes ; Controllers ; Cost functions ; Frequency response ; Optimization ; Probability density function ; Reliability ; Stochastic systems ; Structural dynamics ; Structural health monitoring ; Vibration control ; Active vibration controls ; Aircraft structure ; Optimal sensor placement ; Probability density evolutions ; Structural reliability ; Structural optimization
  8. Source: Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 26 March 2017 through 29 March 2017 ; Volume 10168 , 2017 ; 0277786X (ISSN); 9781510608214 (ISBN)
  9. URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10168/1/Reliability-based-optimization-of-an-active-vibration-controller-using-evolutionary/10.1117/12.2260031.full?SSO=1