The loosening mechanism is explored of a bush press-fitted into the small end bore of a con-rod. A modelling of the bush loosening mechanism is proposed. Numerical and analytical forecasts of the tensile inertial force responsible for the bush loosening are presented for a purely elastic model. Proper design charts are compiled that allow (a) the initial interference precluding any bush loosening to be determined within the respect of an imposed safety factor and (b) the maximum elastic stress within the small end to be computed for a general inertial load.
The loosening mechanism is explored of a bush press-fitted into the small end bore of a con-rod. A modelling of the bush loosening mechanism is proposed. Numerical and analytical forecasts of the tensile inertial force responsible for the bush loosening are presented for a purely elastic model. Proper design charts are compiled that allow (a) the initial interference precluding any bush loosening to be determined within the respect of an imposed safety factor and (b) the maximum elastic stress within the small end to be computed for a general inertial load. © IMechE 2012.
On the loosening mechanism of a bush press-fitted in the small end of a connecting rod / L., Marmorini; Baldini, Andrea; Bertocchi, Enrico; Giacopini, Matteo; Rosi, Roberto; Strozzi, Antonio. - In: PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS. PART D, JOURNAL OF AUTOMOBILE ENGINEERING. - ISSN 0954-4070. - ELETTRONICO. - 226:3(2012), pp. 312-324. [10.1177/0954407011417498]
On the loosening mechanism of a bush press-fitted in the small end of a connecting rod
BALDINI, Andrea;BERTOCCHI, Enrico;GIACOPINI, Matteo;ROSI, Roberto;STROZZI, Antonio
2012
Abstract
The loosening mechanism is explored of a bush press-fitted into the small end bore of a con-rod. A modelling of the bush loosening mechanism is proposed. Numerical and analytical forecasts of the tensile inertial force responsible for the bush loosening are presented for a purely elastic model. Proper design charts are compiled that allow (a) the initial interference precluding any bush loosening to be determined within the respect of an imposed safety factor and (b) the maximum elastic stress within the small end to be computed for a general inertial load. © IMechE 2012.
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