Search Results - "Fernandes, C. M. C. G."

Influence of gear loss factor on the power loss prediction by Fernandes, C. M. C. G, Marques, P. M. T, Martins, R. C, Seabra, J. H. O

“…In order to accurately predict the power loss generated by a meshing gear pair the gear loss factor must be properly evaluated. Several gear loss factor…”
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Tribological Improvement of Low-Viscosity Nanolubricants: MoO3, MoS2, WS2 and WC Nanoparticles as Additives by Liñeira del Río, José M., Fernandes, Carlos M. C. G., Seabra, Jorge H. O.

“…The aim of this research is studying the tribological performance of MoO3, MoS2, WS2 and WC nanoparticles as additives of PAO4. Pure sliding tribological tests…”
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Synergistic Effects of Functionalized WS2 and SiO2 Nanoparticles and a Phosphonium Ionic Liquid as Hybrid Additives of Low-Viscosity Lubricants by Liñeira del Río, José M., Fernandes, Carlos M. C. G., Gonçalves, David E. P., Seabra, Jorge H. O.

“…This research shows the antifriction and antiwear synergies between a phosphonium ionic liquid (IL) and f-WS2 and f-SiO2 nanoparticles (NPs) as additives of a…”
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Testing and modelling of a 2.5 MW wind turbine gearbox: Influence of lubricant formulation by Fernandes, Carlos M. C. G., Ferreira, Rui, Seabra, Jorge H. O., Cruz, João M., Bernardes, Ricardo

“…This study aimed to evaluate the efficiency of different ISO VG 320 oil formulations used in a 2.5 MW wind turbine gearbox. Two commercially available…”
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Spur gear teeth reconstruction via direct laser deposition by Romio, P. C., Marques, P. M. T., Seabra, J. H. O., Fernandes, C. M. C. G., Gil, J., Cardoso, R., Vieira, M. F., Cruz, J. M.

“…Fatigue damage, such as pitting and tooth root fatigue fracture, is one of several gear failure modes encountered in practical applications. Some of these…”
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Influence of running-in operating conditions on the steady-state torque loss of ground spur gears by Fernandes, Carlos M. C. G., Pais, João C., Martins, Ramiro C., Seabra, Jorge H. O.

“…The influence of gear running-in operating conditions on the steady-state efficiency of ground spur gears is not well established. However, it is accepted that…”
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Efficiency of a gearbox lubricated with wind turbine gear oils by Marques, Pedro M.T., Fernandes, Carlos M.C.G., Martins, Ramiro C., Seabra, Jorge H.O.

“…In this study a two stage multiplying gearbox with helical gears and four fully formulated wind turbine gear oils were tested, on a back-to-back gearbox test…”
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Evaluation of bearing, gears and gearboxes performance with different wind turbine gear oils by Martins, Ramiro Carneiro, Fernandes, Carlos M. C. G., Seabra, Jorge H. O.

“…The oil viscosity specification for wind turbine gear oils is ISO VG 320, although there are quite different viscosity indexes oils for that viscosity…”
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Torque loss in a gearbox lubricated with wind turbine gear oils by Gonçalves, David E. P., Fernandes, Carlos M. C. G., Martins, Ramiro C., Seabra, Jorge H. O.

“…ABSTRACT In this study, four different fully formulated ISO VG 320 wind turbine gear oils were select: a mineral oil‐based, a polyalphaolefin‐based, an…”
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A comparison of analytical methods to predict the bulk temperature in polymer spur gears by Roda-Casanova, Victor, Fernandes, Carlos M.C.G.

“…The mechanical properties of polymer gear transmissions are dependent on the operating temperature. Therefore, the prediction of the temperature of polymer…”
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Classifying Portuguese Messages With Traces of Racism on Twitter by SILVA, R. C. C., FERNANDES, D. S. A., FERNANDES, M. G. C.

“…The development of social media and the Internet has given users a platform to express their beliefs and opinions with greater ease and outreach. Some of these…”
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Experiments and finite element analysis on a hybrid polymer gear rack by Hooton, James D.S., Gonçalves, David E.P., Fernandes, Carlos M.C.G.

“…This article presents the results of experiments and finite element analysis on a hybrid polymer gear concept. The study aimed to investigate the effectiveness…”
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Finite element method model to predict bulk and flash temperatures on polymer gears by Fernandes, Carlos M.C.G., Rocha, Diogo M.P., Martins, Ramiro C., Magalhães, Luis, Seabra, Jorge H.O.

“…A FEM thermal model was implemented to predict the bulk and flash temperature of gears in general and polymer gears in particular. Using the capabilities of a…”
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Gearbox power loss. Part II: Friction losses in gears by Fernandes, Carlos M.C.G., Marques, Pedro M.T., Martins, Ramiro C., Seabra, Jorge H.O.

“…The second part of the study presents an extensive campaign of experimental tests in an FZG test rig. An average coefficient of friction between meshing gears…”
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Tribological performance of green nanolubricants using functionalized CaCO3 nanoparticles by Liñeira del Río, José M., Fernandes, Carlos M.C.G., Gonçalves, David E.P., Seabra, Jorge H.O.

“…In response to the mounting concern over environmental pollution and the depletion of petroleum reserves, biolubricants have emerged as a promising alternative…”
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Identification of gear wear damage using topography analysis by Poletto, J.C., Fernandes, C.M.C.G., Barros, L.Y., Neis, P.D., Pondicherry, K., Fauconnier, D., Seabra, J.H.O., De Baets, P., Ferreira, N.F.

“…Gear failure modes and their underlying mechanisms are usually identified by visual inspection, which relies on the skills and experience of the human observer…”
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Tribological Improvement of Low-Viscosity Nanolubricants: MoO[sub.3], MoS[sub.2], WS[sub.2] and WC Nanoparticles as Additives by Liñeira del Río, José M, Fernandes, Carlos M. C. G, Seabra, Jorge H. O

“…The aim of this research is studying the tribological performance of MoO[sub.3], MoS[sub.2], WS[sub.2] and WC nanoparticles as additives of PAO4. Pure sliding…”
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Comparative tribological investigation of castor oil and its transesterified and aminolyzed derivatives by Lasch, G., Stradolini, P., Gehlen, G.S., Barros, L.Y., Poletto, J.C., Ramalho, A., Fernandes, C.M.C.G., Romio, P.C., Petzhold, C.L., Ferreira, N.F., Neis, P.D.

“…This study compared the tribological performance of castor oil (CO), its transesterified (TCO), and aminolyzed (ACO) forms. A limited number of research…”
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Torque loss in FZG-A10 gears lubricated with axle oils by Hammami, Maroua, Fernandes, Carlos M.C.G., Martins, Ramiro, Abbes, Mohamed Slim, Haddar, Mohamed, Seabra, Jorge

“…FZG type A spur gears, lubricated with axle gear oils with high EP properties, were tested in an FZG back-to-back test rig, and their torque loss was measured…”
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Synergistic Effects of Functionalized WS[sub.2] and SiO[sub.2] Nanoparticles and a Phosphonium Ionic Liquid as Hybrid Additives of Low-Viscosity Lubricants by Liñeira del Río, José M, Fernandes, Carlos M. C. G, Gonçalves, David E. P, Seabra, Jorge H. O

“…This research shows the antifriction and antiwear synergies between a phosphonium ionic liquid (IL) and f-WS[sub.2] and f-SiO[sub.2] nanoparticles (NPs) as…”
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