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Vehicle System Dynamics
International Journal of Vehicle Mechanics and Mobility
Volume 43, 2005 - Issue sup1
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Original Articles

Measurement of the forces and moments acting on farm tractor pneumatic tyres

Massimiliano Gobbi Politecnico di Milano, Department of Mechanical Engineering, Laboratory for the Safety of Transport, Via G. La Masa, 34, 20156, Milan, Italy
,
Mauro Aiolfi Politecnico di Milano, Department of Mechanical Engineering, Laboratory for the Safety of Transport, Via G. La Masa, 34, 20156, Milan, Italy
,
Mario Pennati Politecnico di Milano, Department of Mechanical Engineering, Laboratory for the Safety of Transport, Via G. La Masa, 34, 20156, Milan, Italy
,
Giorgio Previati Politecnico di Milano, Department of Mechanical Engineering, Laboratory for the Safety of Transport, Via G. La Masa, 34, 20156, Milan, Italy
,
Francesco Levi Politecnico di Milano, Department of Mechanical Engineering, Laboratory for the Safety of Transport, Via G. La Masa, 34, 20156, Milan, Italy
,
Massimo Ribaldone Same Deutz-Fahr Group, Viale F. Cassani 15, 24047, Treviglio, BG, Italy
&
Giampiero Mastinu Politecnico di Milano, Department of Mechanical Engineering, Laboratory for the Safety of Transport, Via G. La Masa, 34, 20156, Milan, ItalyCorrespondence[email protected]
 show all
Pages 412-433 | Published online: 11 Mar 2011
 
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Abstract

A number of experimental activities designed and undertaken for deriving the characteristics of farm tractor tyres are presented. By means of a proprietary measuring hub the three forces and the three moments acting at the hub of a farm tractor wheel have been measured, for different combinations of lateral and longitudinal tyre slips. Tyre steady-state characteristics have been derived both on hard asphalt road and on soft soil. Validation of the measurements of tyre characteristics has been performed indirectly by introducing the data referring to tyre characteristics into a detailed mathematical model of a farm tractor. A number of actual manoeuvres have been simulated. The satisfactory agreement between simulated and measured results has provided the necessary condition for validation of the tyre characteristic measurement process.

Keywords:

Acknowledgements

The authors thank Dr F. Giorgetta for the help that he gave during the tests.

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