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Bai, Shi; Li, Xuan; Xie, Zhaohui; Zhou, Zhi; Ou, Jinping (2014)
Publisher: Multidisciplinary Digital Publishing Institute
Journal: Sensors
Languages: English
Types: Article
Subjects: Digital Signal Processing (DSP), structural health monitoring (SHM), rain-flow counting method, fatigue, TP1-1185, data tracking of tree rings, Chemical technology, wireless sensor, PVDF, Article

Classified by OpenAIRE into

ACM Ref: ComputerApplications_COMPUTERSINOTHERSYSTEMS
Fatigue, a hot scientific research topic for centuries, can trigger sudden failure of critical structures such as aircraft and railway systems, resulting in enormous casualties as well as economic losses. The fatigue life of certain structures is intrinsically random and few monitoring techniques are capable of tracking the full life-cycle fatigue damage. In this paper, a novel in-situ wireless real-time fatigue monitoring system using a bio-inspired tree ring data tracking technique is proposed. The general framework, methodology, and verification of this intelligent system are discussed in details. The rain-flow counting (RFC) method is adopted as the core algorithm which quantifies fatigue damages, and Digital Signal Processing (DSP) is introduced as the core module for data collection and analysis. Laboratory test results based on strain gauges and polyvinylidene fluoride (PVDF) sensors have shown that the developed intelligent system can provide a reliable quick feedback and early warning of fatigue failure. With the merits of low cost, high accuracy and great reliability, the developed wireless fatigue sensing system can be further applied to mechanical engineering, civil infrastructures, transportation systems, aerospace engineering, etc.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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