Contact Us
Experimental Aeroelastic Shape Sensing and Control

Experimental Aeroelastic Shape Sensing and Control

Monday 01/03/2021
  • Michael Simbuerger
  • Work towards MSc degree under the supervision of Professor Daniella Raveh (Technion)
  • Department of Aerospace Engineering
  • Technion – Israel Institute of Technology
  • The talk will be given in English

The main goals in aircraft design nowadays are noise and emission reduction, together with performance improvement.  These can be achieved straightforwardly with lightweight, large-span configurations. However, light aircraft are inherently more flexible and susceptible to adverse aeroelastic phenomena such as flutter, reduced control-surface efficiency, and large static and dynamic loads. Over the years, and with advances in aircraft control technology, several studies have shown that wings’ flexibility can be leveraged to achieve optimal performance (e.g., drag reduction, minimization of loads, or minimization of deformations) while minimizing adverse aeroelastic effects.

The current research study focuses on developing and implementing an aeroelastic shape sensing and control methodology that relies on strain-data from fiber-optic sensors (FOS).  Fiber-optic sensing is commonly used in civil engineering, aerospace, marine, and oil and gas. Prominent use of fiber-optic sensors (FOS) in the aerospace industry is for structural health monitoring of complex aero-structures. FOS’s inherent capabilities include strain accuracy, spatial resolution, broad strain dynamic range, high sampling rate, insensitivity to electromagnetic radiation, small size, and lightweight. These properties make FOS highly suitable for aerospace systems.  Recent studies demonstrated how FOS strain-data could be used to reconstruct the static and dynamic deformed shape of a flexible wing and predict the flutter onset speed. The current study further develops these capabilities and demonstrates wing-shape control based on strain-data measured via FOS.

The seminar will present the wing design, analyses, instrumentation with optical fibers, and experiments. FOS-based trim optimization was successfully realized, reducing the wing’s deformation by 30% while maintaining a required nominal lift.

Zoom Meeting
For more info
Please fill in the details

"*" indicates required fields

This field is for validation purposes and should be left unchanged.
*required fields are marked with an asterisk