A Robust Method for Drilling Monitoring using Acoustic Emission
TypeCommunications avec actes
Acoustic Emission (AE) is considered an efficient tool for monitoring of machining operations, for both tool condition and working piece integrity. However, the use of AE is more challenging in case of drilling, due to heavy dependence of AE signals to process parameters. Monitoring drilling using AE thus requires robust methods to extract useful information in signals. The paper describes such a method that adapts itself to AE signals obtained during drilling, allowing the automatic set-up of an adaptive threshold to perform AE count rate. Experiments have been conducted that show the robustness of the method and its usefulness in drilling monitoring.
Showing items related by title, author, creator and subject.
LE MOAL, G; MORARU, George; VERON, Philippe; DOUILLY, M; RABATE, P (Proceedings of the 14th International Conference on Information Fusion - FUSION, 2011)This paper addresses the problem of robust detection of signal singularity in hostile environments using multisensor data fusion. Measurement uncertainty is usually treated in a probabilistic way, assuming lack of ...
LE MOAL, G; MORARU, George; VERON, Philippe; RABATE, P; DOUILLY, M (Proceedings of the 2nd International Conference on Communications, Computing and Control Applications (CCCA), 2012)Emergence of automated and flexible production means leads to the need of robust monitoring systems. Such systems are aimed at the estimation of the production process state by deriving it as a function of critical ...
MORARU, George; VERON, Philippe; RABATE, Patrice (OMPI (Organisation Mondiale de la Propriété Intellectuelle), 2010)The invention relates to a drilling head with an axial oscillation generator, based on the use of piezoelectric ceramic actuators.
PERNOT, Jean-Philippe; MORARU, George; VERON, Philippe (Elsevier, 2006)The presence of holes in a triangle mesh is classically ascribed to the de ciencies of the point cloud acquired from a physical object to be reverse engineered. This lack of information results from both the scanning process ...
PERNOT, Jean-Philippe; MORARU, George; VERON, Philippe (Taylor & Francis, 2007)The Reverse Engineering process consists of a succession of operations that aim at creating a digital representation of a physical model. The reconstructed geometric model is often a triangle mesh built from a point cloud ...