Structural Health Monitoring (SHM) in air platforms has received great attention during the past decades and will likely play an important role in aircraft design and operation in the future. SHM aims to achieve in-service monitoring of the load condition and damage state of key structural components of an aircraft using advanced sensors which are permanently integrated to the aircraft.
Fiber Bragg Grating (FBG) is a sensor technique capable of strain measurement in the structure. Because of its advantageous properties (light weight, easy to multiplex, and immune to the electromagnetic interference), FBG is often used for the SHM purpose. Furthermore, Piezoelectric Transducer (PZT) can be used to generate and measure guided waves in the plate-like structures.
Proof the concept of the combination of fast FBG interrogating system and the PZT actuator for load and structural health monitoring purposes.
In this intern ship, a new concept will be explored where PZT’s are used as a wave generator while FBG’s measure the waves in the plate structure.
- Analytical and numerical derivation of expected results;
- Determine the accuracy and precision of the strain measurement with FBG;
- Measure and analyze guided waves and/or impact generated waves with the FBG;
- Compare measurements from a pristine and damaged plate structure;
- In cooperation with Technobis Group, an interrogator system capable of high-speed FBG interrogation up until 1 MHz, is available. The availability of the system may be limited, therefore, time planning and communicating with other parties will be crucial.
- At least Bachelor of Science title in mechanical, aerospace, computer science or any relevant field of engineering;
- Sufficient english skill;
- Knowledge in Matlab is desired.
This is a graduation internship for the master students!
Jason Hwang, department of gas turbines and structural integrity
+31 88 511 4426
Datum : 22/11/2017
Locatie : Flevoland/Marknesse
Uren : 40
Opleidingsniveau : WO
Achtergrond : Structural Health Monitoring