Journal ArticleDOI
Finite element method model to predict bulk and flash temperatures on polymer gears
Carlos M.C.G. Fernandes,Diogo M. P. Rocha,Ramiro C. Martins,Luis Magalhaes,Jorge H.O. Seabra +4 more
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TLDR
In this article, a FEM thermal model was implemented to predict the bulk and flash temperature of gears in general and polymer gears in particular, and a solution for the temperature rise and distribution along the tooth is suggested.About:
This article is published in Tribology International.The article was published on 2017-12-01. It has received 59 citations till now. The article focuses on the topics: Bulk temperature & Finite element method.read more
Citations
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Durability and design parameters of a Steel/PEEK gear pair
TL;DR: In this paper, the wear coefficient of a steel/PEEK gear pair in dry and lubricated conditions is proposed, and it is shown that a proper tooth tip relief can improve the meshing and results in a further extension of the gear's lifespan.
Journal ArticleDOI
Identification of failure modes of a PEEK-steel gear pair under lubrication
TL;DR: In this paper, an experimental investigation was conducted to identify the failure modes of the PEEK gears under different loading conditions through the enclosed power flow test rig, supplemented with measurements on wear, vibration and the surface micro-topography.
Journal ArticleDOI
A 2D finite element based approach to predict the temperature field in polymer spur gear transmissions
TL;DR: In this paper, a new numerical approach is described to determine the temperature field of polymer spur gears during their operation. The approach is based on an uncoupled procedure in which a mechanical problem is solved to determine how much heat generated by friction during the meshing of the gears, and then this heat is considered as a thermal load to perform a thermal analysis of a finite element model of the transmission.
Journal ArticleDOI
Nonlinear response analysis of gear-shaft-bearing system considering tooth contact temperature and random excitations
TL;DR: In this paper, a coupled nonlinear dynamic model with 10-degree-of-freedom (10-DOF) of gear-shaft-bearing transmission system is established after comprehensively considering the nonlinear features associated with time-varying meshing stiffness (the stiffness caused by temperature and shock), static transmission error, time-changing fractal backlash, friction, load fluctuation, gear eccentricity, gravity, and nonlinear oil film force.
Journal ArticleDOI
Thermo-mechanical modeling of polymer spur gears with experimental validation using high-speed infrared thermography
TL;DR: In this paper, the authors developed a comprehensive thermo-mechanical model for predicting the temperature rise in thermoplastic polymer spur gears with any desired profile geometry while running, and good agreement was found between the results of the model and the experimental measurements performed using a high-speed thermal imaging infrared camera.
References
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Journal ArticleDOI
The flash temperature concept
TL;DR: A survey of the history of the flash temperature concept and its application in the design of rubbing components that are prone to scuffing can be found in this paper, along with an outline of the theory that is based on this concept and formulas for calculating flash temperatures.
Journal ArticleDOI
Metabolites of Penicillium italicum WEHMER : Isolation and Structures of New Metabolites Including Naturally Occurring 4-Ylidene-acyltetronic Acids, Italicinic Acid and Italicic Acid
TL;DR: In this article, four new metabolites, italicic acid, dihydro-italicic, methyl italicate and italicinic acid, were isolated from the culture medium of Penicillium italicum WEHMER.
Journal ArticleDOI
Gear tooth contact analysis and its application in the reduction of fatigue wear
TL;DR: In this article, the gear fatigue wear reduction through micro-geometry modification method was investigated using an accurate non-linear finite element method to provide a quantitative understanding of gear tooth contact behaviour.
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