STRUCTURAL HEALTH MONITORING USING METAL WIRE BASED PIEZO-IMPEDANCE TRANSDUCER
نویسندگان
چکیده
منابع مشابه
Impedance-based Structural Health Monitoring
1. Introduction The development of a real-time, in-service structural health monitoring and damage detection technique has recently attracted a large number of academic and industrial researchers. The goal of this research is to allow systems and structures to monitor their own integrity while in operation and throughout their lives in order to prevent catastrophic failures and to reduce the co...
متن کاملStructural health monitoring using piezoelectric impedance measurements.
This paper presents an overview and recent advances in impedance-based structural health monitoring. The basic principle behind this technique is to apply high-frequency structural excitations (typically greater than 30kHz) through surface-bonded piezoelectric transducers, and measure the impedance of structures by monitoring the current and voltage applied to the piezoelectric transducers. Cha...
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In recent years, impedance measurement method by piezoelectric (PZT) wafer activesensor (PWAS) has been widely adopted for non-destructive evaluation (NDE). In this method, theelectrical impedance of a bonded PWAS is used to detect a structural defect. The electro-mechanicalcoupling of PZT materials constructs the original principle of this method. Accordingly, the electricalimpedance of PWAS c...
متن کاملRefinements of the Impedance-based Structural Health Monitoring Technique
In almost all practical field applications, the structure that is being monitored is constantly undergoing changes due to external boundary and environmental conditions. This change, in most cases, is considered to be normal and a part of the everyday use of the structure. Examples of the factors that lead to this change are loading of the structure, vibration of the structure and change in the...
متن کاملRefinements of the Impedance-based Structural Health Monitoring Technique
The objective of this chapter is to examine and obtain a better understanding of practical issues that are a result of monitoring the health of structures in an uncontrolled field environment. The effects of external boundary and environmental condition changes and other structural variations on the impedance-based health monitoring technique are investigated. Examples of the factors that consi...
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ژورنال
عنوان ژورنال: International Journal of Research in Engineering and Technology
سال: 2016
ISSN: 2321-7308,2319-1163
DOI: 10.15623/ijret.2016.0514007