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Online Structural Health Monitoring and Parameter Estimation for Vibrating Active Cantilever Beams Using Low-Priced Microcontrollers
Joint Authors
Takács, Gergely
Rohal’-Ilkiv, Boris
Vachálek, Ján
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-11
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
This paper presents a structural health monitoring and parameter estimation system for vibrating active cantilever beams using low-cost embedded computing hardware.
The actuator input and the measured position are used in an augmented nonlinear model to observe the dynamic states and parameters of the beam by the continuous-discrete extended Kalman filter (EKF).
The presence of undesirable structural change is detected by variations of the first resonance estimate computed from the observed equivalent mass, stiffness, damping, and voltage-force conversion coefficients.
A fault signal is generated upon its departure from a predetermined nominal tolerance band.
The algorithm is implemented using automatically generated and deployed machine code on an electronics prototyping platform, featuring an economically feasible 8-bit microcontroller unit (MCU).
The validation experiments demonstrate the viability of the proposed system to detect sudden or gradual mechanical changes in real-time, while the functionality on low-cost miniaturized hardware suggests a strong potential for mass-production and structural integration.
The modest computing power of the microcontroller and automated code generation designates the proposed system only for very flexible structures, with a first dominant resonant frequency under 4 Hz; however, a code-optimized version certainly allows much stiffer structures or more complicated models on the same hardware.
American Psychological Association (APA)
Takács, Gergely& Vachálek, Ján& Rohal’-Ilkiv, Boris. 2015. Online Structural Health Monitoring and Parameter Estimation for Vibrating Active Cantilever Beams Using Low-Priced Microcontrollers. Shock and Vibration،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1078182
Modern Language Association (MLA)
Takács, Gergely…[et al.]. Online Structural Health Monitoring and Parameter Estimation for Vibrating Active Cantilever Beams Using Low-Priced Microcontrollers. Shock and Vibration No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1078182
American Medical Association (AMA)
Takács, Gergely& Vachálek, Ján& Rohal’-Ilkiv, Boris. Online Structural Health Monitoring and Parameter Estimation for Vibrating Active Cantilever Beams Using Low-Priced Microcontrollers. Shock and Vibration. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1078182
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1078182