Impedance-Based Structural Health Monitoring for Temperature Varying Applications.
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...
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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...
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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...
متن کاملImpedance-based Structural Health Monitoring of Thermal Protection Systems
Components used for thermal protection have not previously been interrogated with the impedance method. In this study, structures are fabricated to represent typical thermal protections systems. The replicas are designed to simulate actual protection systems in use. Observations are made into the verification of the impedance method in effectively monitoring complex thermal protection systems f...
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ژورنال
عنوان ژورنال: JSME International Journal Series A
سال: 1999
ISSN: 1344-7912,1347-5363
DOI: 10.1299/jsmea.42.249