Szczegóły publikacji
Opis bibliograficzny
Noncontact ultrasonic guided wave inspection of rails / Stefano Mariani, Thompson Nguyen, Robert R. Phillips, Piotr KIJANKA, Francesco Lanza di Scalea, Wiesław J. STASZEWSKI, Mahmood Fateh, Gary Carr // Structural Health Monitoring ; ISSN 1475-9217. — 2013 — vol. 12 no. 5–6 Special issue on Noncontact measurement technology for structural health monitoring, s. 539–548. — Bibliogr. s. 547–548, Abstr.
Autorzy (8)
- Mariani Stefano
- Nguyen Thompson V.
- Phillips Robert Ronald
- AGHKijanka Piotr
- di Scalea Francesco Lanza
- AGHStaszewski Wiesław Jerzy
- Fateh Mahmood
- Carr Gary
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 79163 |
|---|---|
| Data dodania do BaDAP | 2014-01-22 |
| Tekst źródłowy | URL |
| DOI | 10.1177/1475921713498533 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Structural Health Monitoring : an international journal |
Abstract
This article describes a new system for high-speed and noncontact rail integrity evaluation being developed at the University of California at San Diego. A prototype using an ultrasonic air-coupled guided wave signal generation and air-coupled signal detection has been tested at the University of California at San Diego Rail Defect Farm. In addition to a real-time statistical analysis algorithm, the prototype uses a specialized filtering approach due to the inherently poor signal-to-noise ratio of the air-coupled ultrasonic measurements in rail steel. The laboratory results indicate that the prototype is able to detect internal rail defects with a high reliability. Extensions of the system are planned to add rail surface characterization to the internal rail defect detection. In addition to the description of the prototype and test results, numerical analyses of ultrasonic guided wave propagation in rails have been performed using a Local Interaction Simulation Approach algorithm and some of these results are shown. The numerical analysis has helped designing various aspects of the prototype for maximizing its sensitivity to defects.
