Zobrazeno 1 - 10
of 246
pro vyhledávání: '"Katia Lucchesi Cavalca"'
Publikováno v:
Machines, Vol 10, Iss 3, p 189 (2022)
Several theoretical models for predicting the performance of tilting pad journal bearings (TPJB) have been developed by the scientific community over the years. However, reliable validation of the predictions based on the theoretical models, taking i
Externí odkaz:
https://doaj.org/article/6753d0614899451fafb427336943b967
Publikováno v:
International Journal of Rotating Machinery, Vol 2014 (2014)
Journal bearing supported rotors present two kinds of self-excited vibrations: oil-whirl and oil-whip. The first one is commonly masked by the rotor unbalance, hence being rarely associated with instability problems. Oil-whip is a severe vibration wh
Externí odkaz:
https://doaj.org/article/c7333c3fe0bd434db8f7f2634ae42062
Publikováno v:
Nonlinear Dynamics. 111:10743-10768
This work presents a model reduction method suited for performing nonlinear dynamic analysis of highdimensional rotor-foundation systems modeled by the finite element method. The approach consists in combining the Component Mode Synthesis (CMS) metho
Many rotating machines utilize a fluid type bearing. Despite their reliability and high load capacity, these bearings often show instabilities due to the interaction between the fluid media and the rotating shaft. These instabilities, known as oil-wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8428b5dfad25298ddc32592aa72fbaf4
https://doi.org/10.21203/rs.3.rs-2402523/v1
https://doi.org/10.21203/rs.3.rs-2402523/v1
Publikováno v:
Proceedings of the XIX International Symposium on Dynamic Problems of Mechanics.
Publikováno v:
Proceedings of the XIX International Symposium on Dynamic Problems of Mechanics.
Autor:
Arthur Mereles, Katia Lucchesi Cavalca
Publikováno v:
Applied Mathematical Modelling. 96:402-430
This work presents a new method here named Continuous Segment Method (CSM) for modeling complex rotor systems with multiple disks and bearings. It consists in dividing the domain of the system into subdomains, or segments, in order to solve the eigen
Autor:
Diogo Stuani Alves, Tiago Henrique Machado, Felipe Wenzel da Silva Tuckmantel, Patrick S. Keogh, Katia Lucchesi Cavalca
Publikováno v:
Alves, D, Machado, T, Tuckmantel, F, Keogh, P & Cavalca, K 2022, ' Investigation of Fault Modeling in the Identification of Bearing Wear Severity ', Journal of Tribology: Transactions of the ASME, vol. 144, no. 7, 71802 . https://doi.org/10.1115/1.4053178
Recent research into machines involved in power generation processes has demanded deep investigation of model-based techniques for fault diagnosis and identification. The improvement of critical fault characterization is crucial in the maintenance pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc6827646d5f718af418f8966b7aca13
https://purehost.bath.ac.uk/ws/files/227670162/manuscript_rev3_PSK.pdf
https://purehost.bath.ac.uk/ws/files/227670162/manuscript_rev3_PSK.pdf
Publikováno v:
Structural Health Monitoring. :147592172311630
Rotary systems are extremely important for the development of industrial production due to the large amount of work performed by these machines. However, rotating machines are prone to unbalance faults, which can reduce efficiency and, in the worst-c
Autor:
Thales Freitas Peixoto, Felipe Wenzel da Silva Tuckmantel, Gregory Bregion Daniel, Katia Lucchesi Cavalca
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. :135065012311621
This work presents a thermo-hydrodynamic model of a tilting pad journal bearing (TPJB) supported on flexible pivots and considering direct injection on the bearing gap. It initially investigates separately each effect on the static characteristics of