Search Results - "Marafona, João D.M."

Mesh stiffness models for cylindrical gears: A detailed review by Marafona, João D.M., Marques, Pedro M.T., Martins, Ramiro C., Seabra, Jorge H.O.

“…Gear transmissions have always been a subject of study for many different reasons which change due to the constant evolution of technology. Consequently, new…”
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Approximate expression for the single tooth pair slice mesh stiffness by Marafona, João D.M., Marques, Pedro M.T., Martins, Ramiro C., Seabra, Jorge H.O.

“…In many gear mesh stiffness models, the single tooth pair mesh stiffness is commonly approximated as having a parabolic-like symmetric shape along the path of…”
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Gear mesh stiffness and dynamics: Influence of tooth pair structural stiffness asymmetry by Marafona, João D.M., Marques, Pedro M.T., Portron, Stéphane, Martins, Ramiro C., Seabra, Jorge H.O.

“…There are certainly a lot of different gear mesh stiffness models in the literature, nonetheless, it is not possible to find comprehensive and in-depth gear…”
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Crowned spur gears for constant mesh stiffness: A conceptual approach by Marques, Pedro M.T., Marafona, João D.M., Seabra, Jorge H.O.

“…Flank line crowning is a gear surface geometry modification that can be applied as a measure to accommodate contact imperfections along the gear teeth…”
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A continuous analytical solution for the load sharing and friction torque of involute spur and helical gears considering a non-uniform line stiffness and line load by Marques, Pedro M.T., Marafona, João D.M., Martins, Ramiro C., Seabra, Jorge H.O.

“…•New continuous and smooth analytical mathematical framework.•Analytical estimation of spur and helical gears mesh stiffness and friction torque.•Non-uniform…”
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Gear design optimization: Stiffness versus dynamics by Marafona, João D.M., Carneiro, Gonçalo N., Marques, Pedro M.T., Martins, Ramiro C., António, Carlos C., Seabra, Jorge H.O.

“…Optimization is a flexible methodology for gear design since it allows for diverse approaches according to current demands. Thus, lightweight, efficient,…”
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Towards constant mesh stiffness helical gears: The influence of integer overlap ratios by Marafona, João D.M., Marques, Pedro M.T., Martins, Ramiro C., Seabra, Jorge H.O.

“…•Analysis of the contact length variation.•Gear geometries with minor mesh stiffness fluctuations.•Improved gear dynamic performance. This work presents the…”
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