REVIEW ARTICLE


Design Criteria for High Power Engines Crankshafts



S. Baragetti*, 1, 2
1 GITT - Centre on Innovation Management and Technology Transfer, Università degli Studi di Bergamo, Via Salvecchio 19, Bergamo 24129, Italy
2 Department of Management, Information and Production Engineering, Università degli Studi di Bergamo, viale Marconi 5, Dalmine 24044, Italy

Article Information


Identifiers and Pagination:

Year: 2015
Volume: 9
First Page: 271
Last Page: 281
Publisher Id: TOMEJ-9-271
DOI: 10.2174/1874155X01509010271

Article History:

Received Date: 8/1/2015
Revision Received Date: 15/1/2015
Acceptance Date: 16/1/2015
Electronic publication date: 23/4/2015
Collection year: 2015

© 2015 Perrella et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the GITT - Centre on Innovation Management and Technology Transfer, Università degli Studi di Bergamo, Via Salvecchio 19, Bergamo 24129, Italy; Tel: +39-035-2052382; Fax: +39-035-2052043; E-mail: sergio.baragetti@unibg.it


Abstract

The reliability of any mechanical system, in which the linear displacement of a piston is converted into the rotation of a power transmission shaft, strongly depends on the reliability of the crankshaft. The crankshaft is the critical component and any damage occurring to the crankshaft may put the mechanical system out of order. The numerical finite element simulation of crankshafts with multiple rods is often time consuming even if quite accurate if the aim is to evaluate the stress-strain behavior at the notched area and verify the component. The development of a simplified numerical model would prove effective to reduce the time needed to reach a good approximation design of the crankshaft. The aim of this paper is to give the designer a numerical procedure that allows to determine the strain and stress state and verify crankshafts having two or more rods.

Keywords: Crankshaft, fatigue resistance, FEM models, machine design, reliability, stress concentration.