Selva García, Anahí D. (2017) Diseño de un dispositivo para ensayos de fretting por impacto. / Desing of testrig for impact fretting tests. Proyecto Integrador Ingeniería Mecánica, Universidad Nacional de Cuyo, Instituto Balseiro.
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Resumen en español
En este trabajo se realizo el diseño de detalle, fabricación, montaje y pruebas preliminares de un dispositivo para realizar ensayos de fretting por impacto e impacto oblicuo destinado al estudio de los efectos de este fenómeno en las fallas en los tubos de generador de vapor de la industria nuclear. Este mecanismo de daño es reportado como una de las principales causas de fallas en servicio del generador de vapor, componente esencial de cualquier reactor nuclear. En primer lugar se realizo una revisión bibliográfica del fenómeno de impacto oblicuo y las variables esenciales a considerar al efectuar ensayos en materiales para determinar este tipo de daño. Posteriormente se analizaron algunos dispositivos comerciales y otros diseñados en distintos laboratorios especializados en la temática. En base a la información analizada se considero factible diseñar y construir un dispositivo localmente. Se procedió entonces al diseño conceptual del dispositivo teniendo como referencia el existente en el Canada Nuclear Laboratories. Luego se seleccionaron los actuadores y transductores y se procedió a realizar el diseño de detalle de los distintos componentes utilizando el software SolidWorks y Abaqus. Se estableció un codigo de control con el dispositivo Arduino comunicado con una PC a través del software Labview. La adquisición de los transductores se realizo mediante el dispositivo Quantum X de la empresa HBM. Posterior a la fabricación de las piezas constituyentes, se procedió al montaje y armado del dispositivo y se realizaron los ensayos necesarios para la caracterización del dispositivo. Se observo el daño producido en tubos de Inconel 690 en contacto con anillos soporte de AISI 304 para distintas condiciones de desgaste.
Resumen en inglés
In this work, the design, manufacture, assembly and preliminary tests of the impactfretting test rig were performed. The test rig developed is used in the study of the effects of the impact-fretting damage on steam generator tubes in the nuclear industry. Impact-fretting or oblique impact is one of most common mechanism of failure in service on steam generators, one of the most important components of nuclear power plants. First, a bibliographic review of the impact- fretting phenomena together the main variables to measure during test were realized. Then, commercial and laboratory-made tests rigs were analysed. Based on this, the design and manufacturing of impact fretting test rig were considered. The conceptual design of the oblique impact fretting device was performed using Canadian Nuclear Laboratorie test rigs. Actuators and transducers were selected and the design and mechanical verification of the components were conducted using the software SolidWorks and Abaqus, respectively. The control system used an Arduino device communicated with a PC through the software Labview. In order to acquire data, the universal amplifier of HBM's QuantumX data acquisition system was used. Finally, the device was manufactured and assembled. Preliminary tests for the characterization of the test rig were performed and the impact-fretting damage on Inconel 690 steam generator tubes against AISI 304 support ring was analysed for different sliding/impact wear conditions.
| Tipo de objeto: | Tesis (Proyecto Integrador Ingeniería Mecánica) |
|---|---|
| Palabras Clave: | Desing; Diseño; [Impact; Impacto; Fretting; Impacto oblicuo; Steam generador tubes; Tubos de generador de vapor; Test rig; Dispositivo de ensayo] |
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| Materias: | Ingeniería mecánica Ingeniería nuclear > Control y funcionamiento de reactores |
| Divisiones: | Investigación y aplicaciones no nucleares > Física > Física de metales |
| Código ID: | 631 |
| Depositado Por: | Tamara Cárcamo |
| Depositado En: | 26 Sep 2017 14:18 |
| Última Modificación: | 26 Sep 2017 14:18 |
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