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|Titolo:||Numerical analysis of the effect of tire characteristics, soil response and suspensions tuning on the comfort of an agricultural vehicle|
|Autori interni:||MELZI, STEFANO|
|Data di pubblicazione:||2014|
|Rivista:||JOURNAL OF TERRAMECHANICS|
|Abstract:||The paper focuses on the numerical investigation of riding comfort of an agricultural vehicle. The analysis is carried out combining a multi-body model of a tractor with a tire-soil interaction model. The multi-body model schematizes the tractor through several rigid bodies representing the chassis, the cabin, the seat and the tires. Model parameters (masses, suspension parameters) were identified by means of full scale tests on a four-post test-rig. Tire-soil interaction model allows computation of the forces exchanged at the contact interface considering soil deformability and the 3D tread design. Several simulations were performed considering the vehicle running at constant speed over a deformable soil; different combinations of suspensions parameters were analyzed to determine their effect on driver comfort evaluated in terms of vertical acceleration on the seat. In addition, the analysis was completed with four different scenarios coupling two different tires with two different soils. © 2014 ISTVS. Published by Elsevier Ltd. All rights reserved.|
|Appare nelle tipologie:||01.1 Articolo in Rivista|
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