Structural health monitoring and impact detection for primary aircraft structures

2010 ◽  
Author(s):  
Eric Kosters ◽  
Thomas J. van Els
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Aircraft Structures ◽  
Structural Health ◽  
Impact Detection

Impact Detection Using an Array of Piezoelectric Wafer Active Sensors and a Microcontroller Unit

2010 ◽  
Author(s):  
Abraham Light-Marquez ◽  
Andrei Zagrai
Keyword(s):  
Structural Health Monitoring ◽  
Sensor Network ◽  
Health Monitoring ◽  
Detection System ◽  
Active Sensors ◽  
Structural Health ◽  
Impact Detection ◽  
Piezoelectric Wafer Active Sensors ◽  
Piezoelectric Wafer ◽  
The Impact

This report discusses the development of an embeddable impact detection system utilizing an array of piezoelectric wafer active sensors (PWAS) and a microcontroller. Embeddable systems are a critical component to successfully implement a complete and robust structural health monitoring system. System capabilities include impact detection, impact location determination and digitization of the impact waveform. A custom algorithm was developed to locate the site of the impact.. The embedded system has the potential for additional capabilities including advanced signal processing and the integration of wireless functionality. For structural health monitoring applications it is essential to determine the extent of damage done to the structure. In an attempt to determine these parameters a series of impact tests were conducted using a ball drop tower on a square aluminum plate. The response of the plate to the impact event was recorded using a piezoelectric wafer sensor network attached to the surface of the plate. From this testing it was determined that several of the impact parameters are directly correlated with the features recorded by the sensor network.

scholarly journals Ultrasonic Guided-Waves Sensors and Integrated Structural Health Monitoring Systems for Impact Detection and Localization: A Review

2021 ◽  
Author(s):  
Lorenzo Capineri ◽  
Andrea Bulletti
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Wireless Sensors ◽  
Real Life ◽  
Research Field ◽  
Time Signal ◽  
Signal Acquisition ◽  
Structural Health ◽  
Impact Detection ◽  
The Impact

In the last decade the research concerning Structural Health Monitoring (SHM) systems have continuously investigated toward autonomous systems based on sensor networks. The different functional blocks of these systems are described introducing first the basic concepts for the impact detection applications based on piezoelectric sensors for ultrasonic guided Lamb waves generated into planar structures. Then the paper will review the recent progresses of the research with focus on the integration of sensors with the electronic interface, including the embedding of sensors with the structure that is represented by the smart-skin concept. The latter benefits of the advancement in piezoelectric MEMS sensors with small footprint mounted on flexible substrates. This new layout of sensors is essential for the system design based on a network of sensors nodes with real time signal acquisition capability for impact event capture. The options of a wired or wireless sensors network are also discussed for different dimensions of the monitored structure. The multifunctional sensors capability is also a new feature discussed in the paper for sensing the environmental conditions that affect the Lamb wave signals interpretation. The power supply by environmental energy of an autonomous sensor node is another research field where large innovation is occurred and a review of energy harvesting devices is reported. The embedded signal processing capabilities in a node with IoT based wireless sensors networks, is an important fertilization between different disciplines and examples of SHM system tested in real-life application are discussed. Finally, the large capacity of data transfer of sensors networks toward large storage data archives also with low power WiFi protocols is the new frontier for exploring artificial intelligence and machine learning applied to big data and the recent research outcomes for impact detection and characterization in complex structures are reported.

Development of structural health monitoring systems for composite bonded repairs on aircraft structures

2001 ◽  
Author(s):  
Stephen C. Galea ◽  
Ian G. Powlesland ◽  
Scott D. Moss ◽  
Michael J. Konak ◽  
Stephen P. van der Velden ◽  
...  
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Monitoring Systems ◽  
Aircraft Structures ◽  
Structural Health ◽  
Health Monitoring Systems
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