Topic
Involute
About: Involute is a research topic. Over the lifetime, 3385 publications have been published within this topic receiving 19902 citations. The topic is also known as: evolvent.
Papers published on a yearly basis
1 / 2
Papers
TL;DR: In this paper, a method of research and design of gears with asymmetric teeth is presented, which enables to increase load capacity, reduce weight, size and vibration level of gears.
214 citations
TL;DR: In this paper, the authors proposed a modified geometry of an asymmetric spur gear drive designed as a combination of an involute gear and a double crowned pinion that enables to localize and stabilize the bearing contact and obtain a favorable shape of transmission errors.
191 citations
TL;DR: In this paper, a non-Newtonian, mixed elastohydrodynamic lubrication (EHL) model of involute spur gear tooth contacts is proposed to continuously follow the contact of a tooth pair from the root to the tip to capture the transient characteristics of lubricated spur gear contacts.
Abstract: In this study, a transient, non-Newtonian, mixed elastohydrodynamic lubrication (EHL) model of involute spur gear tooth contacts is proposed. Unlike the contact between two cylindrical rollers, spur gear contacts experience a number of time-varying contact parameters including the normal load, radii of curvature, surface velocities, and slide-toroll ratio. The proposed EHL model is designed to continuously follow the contact of a tooth pair from the root to the tip to capture the transient characteristics of lubricated spur gear contacts due to these parameter variations, instead of analyzing the contact at discrete positions assuming time-invariant parameters. The normal tooth force along the line of action is predicted by using a gear load distribution formulation and the contact radii and tangential surface velocities are computed from the kinematics and geometry of involute profiles. A unified numerical approach is adapted for handling asperity interaction in mixed EHL conditions. The differences between the transient and discrete EHL analyses are shown for a spur gear pair having smooth surfaces and different tooth profile modifications. The transient behavior predicted by the proposed model is found to be mainly due to the squeezing and pumping effects caused by sudden load changes. The lubrication behavior under rough conditions is also investigated at different operating conditions. DOI: 10.1115/1.4000270
175 citations
TL;DR: In this article, a model of non-uniform load distribution along the line of contact, obtained from the minimum elastic potential energy criterion, is presented, combined with the equations of Navier and Hertz yields more realistic values of the bending and contact stresses.
174 citations
TL;DR: In this paper, two different dynamic models, a finite elements-based deformable-body model and a simplified discrete model, are developed to predict dynamic behavior of spur gear pairs.
Abstract: In this study, two different dynamic models, a finite elements-based deformable-body model and a simplified discrete model, are developed to predict dynamic behavior of spur gear pairs. Dynamic transmission error (DTE) and dynamic factors (DF) defined based on the gear mesh loads, tooth loads and bending stresses are computed for a number of unmodified and modified spur gears within a wide range of rotational speed for different involute contact ratios and torques. Both models are validated by comparing their DTE predictions with experimental data obtained from a set of tests using spur gear having unmodified and modified tooth profiles. The predicted DF and DTE values are related to each other through simplified formulas. Impact of nonlinear behavior such as tooth separations and jump discontinuities on DF is also quantified.Copyright © 2005 by ASME
172 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 22 |
| 2024 | 43 |
| 2023 | 79 |
| 2022 | 149 |
| 2021 | 92 |
| 2020 | 113 |