Calculation and operational assessment of tyre contact areas in the tractor-and-trailer unit

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F24%3A43924947" target="_blank" >RIV/62156489:43410/24:43924947 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.17221/109/2023-JFS" target="_blank" >https://doi.org/10.17221/109/2023-JFS</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/109/2023-JFS" target="_blank" >10.17221/109/2023-JFS</a>

Result language

angličtina

Original language name

Calculation and operational assessment of tyre contact areas in the tractor-and-trailer unit

Original language description

This paper deals with the verification of models for the calculation of the contact area with the soil using data measured during the testing of a tractor-and-trailer unit. The main emphasis was put on the method of calculating the contact area by means of a super ellipse. The comparison included calculation models with the input parameters of contact length and contact width of the tyre. These parameters were compared with values measured in the field where the main variables were tyre dimensions, inflation pressure and load. Results of comparisons show that the method of calculating the contact area using a super ellipse exhibited the best match with the measured values of all compared calculation models (81% in super ellipse with measured half-axes and 75% in super ellipse with calculated half-axes). As to trailer tyres, the match of measured values and those calculated using a super ellipse was even 95%. In the second step, also some empirical models for calculating the contact area were compared with the measured data, not entered by contact length and contact width as variables. Some of these models show a very good match with the measured data, which can be compared, or it is even higher than the calculation by means of a super ellipse. With the specified tyre deformation, however, we consider the model of calculation using a super ellipse as more appropriate for determining the size of contact area as it focuses on the geometry of tyre contact with the ground.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40102 - Forestry

Project

<a href="/en/project/TH02010115" target="_blank" >TH02010115: Timber forwarder with hybrid undercarriage drivetrain</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Forest Science

ISSN

1212-4834

e-ISSN

1805-935X

Volume of the periodical

70

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

16

Pages from-to

144-159

UT code for WoS article

001194558300001

EID of the result in the Scopus database

2-s2.0-85189044564