Publications

@article{2021d,
title = {A critical review on FE-based methods for mesh stiffness estimation in spur gears},
author = {Natali Caterina; Battarra Mattia; Mucchi Emiliano},
doi = {10.1016/j.mechmachtheory.2021.104319},
issn = {0094114X},
year = {2021},
date = {2021-03-27},
journal = {Mechanism and Machine Theory},
volume = {161},
number = {104319},
abstract = {Several methodologies for the mesh stiffness calculation in spur gears have been found in the literature, in the last decades. Based on a bibliographical analysis and the research activities of the authors, attention has been devoted to three methodologies, which appeared as the most employed and cited. A critical review of such methodologies, FE-based method, hybrid analytical-FE method, and analytical approach, has been undertaken, highlighting some crucial aspects regarding the mesh stiffness estimation process. Within this framework, useful information related to the critical choice of parameters needed for the implementation of the methods are presented, in order to provide further guidelines for their application. Furthermore, the methods are compared in terms of results accuracy and computational time for full blank and lightweight gears. This comparison leads to useful guidelines regarding the definition of the most suitable approach depending on the specific requirements. Finally, two variants of an examined hybrid method are presented. They are based on linear, nonlinear FE analyses and analytical formulation. Their purpose is to compare the use of different analytical formulations against the FE formulation for the computation of the local deformation of gear teeth.},
keywords = {Battarra M., Mucchi E., Natali C.},
pubstate = {published},
tppubtype = {article}
}

@article{Natali2020,
title = {A comparison between gear mesh stiffness calculation methods and their sensitivity for lightweight gears},
author = {Natali Caterina; Battarra Mattia; Giorgio Dalpiaz; Emiliano Mucchi},
editor = {KU Leuven - Departement Werktuigkunde },
isbn = {978-908289311-3},
year = {2020},
date = {2020-09-09},
journal = {Proceedings of ISMA 2020 - International Conference on Noise and Vibration Engineering and USD 2020 - International Conference on Uncertainty in Structural Dynamics},
pages = {1403 - 1418},
abstract = {The present work deals with the analysis of the criticalities connected to the calculation of the mesh stiffness for spur gears. In particular, the proposed dissertation compares the most famous methods for the mesh stiffness calculation, found in the literature, focusing the attention on their accuracy for the lightweight gear case. Specifically, five methods have been investigated, one based on an analytical approach, two based on finite element (FE) methods and two hybrid analytical-FE methods. Moreover, an hybrid linear FE-non-linear FE method has been proposed. The sensitivity of the illustrated methods on the mesh stiffness in the analysis case of lightweight gears is investigated and presented. Pros and cons about the analysed approaches have been assessed, in terms of accuracy of the results and computational time. Furthermore, the paper presents different focuses on untreated topics found in the references.},
keywords = {Battarra M., Dalpiaz G., Mucchi E., Natali C.},
pubstate = {published},
tppubtype = {article}
}