Departamento de Ingeniería Mecánica
Facultad de Ingeniería de la Universidad de Concepción

2016 Fondef IDeA ID15I10312

Prof. Koduri Raman (Director)*
Prof. Paulo Flores (Investigador)
Prof. Cristián Molina (Investigador)

Desarrollo de materiales nano piezoeléctricos para la generación de energía eléctrica renovable no convencional (ERNC) a partir de vibraciones mecánicas disponibles en el medioambiente
* Docente Departamento de Ingeniería en Materiales

2011 Fondecyt 11110017

Prof. Cristián Molina (Investigador Responsable)
Condition monitoring of epicyclic gearboxes through the analysis of vibration and acoustic emissions (AE)

2011 DIUC 211.094.034-1.0

Prof. Cristián Molina (Investigador Responsable)
Diagnóstico de fallas en rodamientos mediante el procesamiento y análisis de sus emisiones acústicas (AE)

Two methods for modeling vibrations of planetary gearboxes including faults: Comparison and validation (2017), Mechanical Systems and Signal Processing 92 (2017) 213-225

A method for reduction of Acoustic Emission (AE) data with application in machine failure detection and diagnosis (2017), Mechanical Systems and Signal Processing 97 (2017) 44-58

Feedback on the Surveillance 8 challenge: Vibration-based diagnosis of a Safran aircraft engine (2017), This paper presents the content and outcomes of the Safran contest organized during the International Conference Surveillance 8, October 20–21, 2015, at the Roanne Institute of Technology, France. The contest dealt with the diagnosis of a civil aircraft engine based on vibration data measured in a transient operating mode and provided by Safran. Based on two independent exercises, the contest offered the possibility to benchmark current diagnostic methods on real data supplemented with several challenges. Outcomes of seven competing teams are reported and discussed. The object of the paper is twofold. It first aims at giving a picture of the current state-of-the-art in vibration-based diagnosis of rolling-element bearings in nonstationary operating conditions. Second, it aims at providing the scientific community with a benchmark and some baseline solutions. In this respect, the data used in the contest are made available as supplementary material. https://doi.org/10.1016/j.ymssp.2017.01.037

New aspects concerning the generation of acoustic emissions in spur gears, the influence of operating conditions and gear defects in planetary gearboxes (2016), Insight, Vol 58, No 1, January 2016. DOI: 10.1784/insi.2016.58.1.18

Evaluation of the vibration performance response of insulating floor panels under human walking conditions (2016), Revista de la Construcción. Journal of Contruction, Vol 15, No 2, pp. 19-27, 2016

Damage Assessment of Rolling Element Bearing Using Cyclostationary Processing of AE Signals with Electromagnetic Interference (2015), In Book: Cyclostationarity: Theory and Methods II (ISBN: 978-3-319-16329-1), Springer.

Effects of operating conditions on the Acoustic Emissions (AE) from planetary gearboxes (2014), Applied Acoustics 77 (2014) 150 -- 158

Características vibratorias de transmisiones planetarias de una etapa (2014), Ingeniare. Revista chilena de ingeniería, vol. 22 Nº 1, 2014, pp. 88-98

Dynamic and phenomenological vibration models for failure prediction on planet gears of planetary gearboxes (2014), J Braz. Soc. Mech. Sci. Eng. (2014) 36:533-545

Cyclostationary Processing of Vibration and Acoustic Emissions for Machine Failure Diagnosis (2014), In Book: Cyclostationarity: Theory and Methods (ISBN: 978-3-319-04186-5), Springer.

Theoretical frequency analysis of vibrations from planetary gearboxes (2012), Forschung im Ingenieurwesen: Volume 76, Issue 1 (2012), Page 15-31

Online monitoring system for mining shovels focused on vibration analysis (2007), CIM Bulletin, Vol. 100, No. 1101 (2007) 1--9

Der Arduino Mikrocontroller, ein tolles Tool für die Ingenieurausbildung. Frank Tinapp and Cristián Molina. I Jornadas interdisciplinarias de investigación: Denken auf Deutsch. Concepción. 2015

A method for extreme data reduction of Acoustic Emission (AE) data with application in machine failure diagnosis. Cristián Molina Vicuña and Christoph Höweler. Surveillance7. Chartres. 2013

New aspects concerning the generation of Acoustic Emissions (AE) in spur gears and the influence of operating conditions. Álvaro Barrueto Novoa and Cristián Molina Vicuña. Surveillance7. Chartres. 2013

Acoustic Emission in Planetary Gearboxes: Mathematical Model and Analysis of Experimental Measurements. C. Molina Vicuña, K. Garate Peñaranda and K. Nienhaus. 21st International Acoustic Emission Symposium (IAES21). Okinawa. 2012

Signal processing and modeling of mechanical systems in the context of machine failure diagnosis. Cristián Molina Vicuña. Seminario de análisis numérico y modelación matemática, UBB y ci2ma-UdeC. Concepción. 2012

Aportes para el diagnóstico de fallas incipientes en rodamientos por medio de emisiones acústicas. J. Fernández V., C. Molina V. COCIM 2012, XV Congreso Chileno de Ingeniería Mecánica. La Serena. 2012

Procesamiento cicloestacionario de señales de emisiones acústicas (AE) para el diagnóstico de fallas en rodamientos. Cristián Molina Vicuña, Cristóbal Toledo, Joaquín Fernández, Jorge P. Arenas. INGEACUS 2011, Congreso Internacional de Acústica y Audio Profesional. Valdivia. 2011

Failure diagnosis in planetary gearboxes through vibration analysis. Juan Pablo Torregrosa K., Cristián Molina V.. MANTEMIN 2011, 6th International Mine Equipment Maintenance Meeting. Antofagasta. 2011

Análisis de vibraciones en reductores planetarios. Cristián Molina Vicuña. COCIM 2010, XIV Congreso Chileno de Ingeniería Mecánica. Pucón. 2010

Analysis of the acoustic emissions generated during the meshing process of planetary gearboxes. C Molina Vicuña, P Burgwinkel, K Vaehsen, J Wellhausen. CM 2009 and MFPT 2009, The Sixth International Conference on Condition Monitoring and Machinery Failure Prevention Technologies. Dublin. 2009