Driving comfort analysis of an agricultural tractor with the Hohenheim Tyre Model on complex tracks

Publication Type

Contribution to conference

Authors

Bürger, A.; Böttinger, S.;

Year of publication

2017

Published in

VDI-Berichte

Editor

VDI-MEG

Pubisher

VDI Verlag , Düsseldorf

Band/Volume

2300/

ISBN / ISSN / eISSN

978-3-18-092300-0

Page (from - to)

263-272

Conference name

Tagung Landtechnik

Conference location

Hannover

Conference date

10./11.11.2017

Keywords

Ackerschlepper, Fahrkomfort, Reifenmodell, Simulation

The driving comfort of agricultural tractors – meaning the driver’s isolation from whole-body
vibrations – is increasingly targeted by legislation and vehicle manufacturers. To increase the
efficiency of the development process, virtual methods based on the objective evaluation of
vibration values can be used. This paper presents a method to objectively evaluate the driving
comfort of an agricultural tractor with a multi-body simulation model. The evaluation is
exemplarily based on international standards such as the ISO 2631-1 standard for the
evaluation of whole-body vibrations and the EU Delegated Regulation 1322/2014 for the
evaluation of driving seats. A standard roadway referred to by the ISO 5008 standard is used
as vehicle excitation. A special focus is set on the ability of the Hohenheim Tyre Model to
generate the force inputs of the vehicle multi-body model as exact as possible. The investigations presented are summarised by validation measurements on a smoother track standard roadway with a test tractor. The measurements and the simulation results show a good correlation in both time and frequency domain.