A mathematical model for determining and improving rollover stability of four‑wheel earthmoving vehicles with arbitrary undercarriage system design

• Autorzy: Sierzputowski G. , Dudziński P.

Identyfikatory

DOI

10.1007/s43452-020-00054-w

• Języki publikacji: EN

Abstrakty

EN

Earthmoving vehicles, especially ones with articulated frame steering, are very vulnerable to rollover. Consequently many dangerous rollover accidents occur all around the world. This problem is not only caused by difficult operating conditions and high productivity requirements. The current standards in this area do not offer an acceptable method of assessing vehicle rollover stability. Furthermore, in the previous literature there have been no research on rollover stability of increasingly common unconventional undercarriage systems, equipped with inclined/virtual oscillation and steering axes. In response to the above-mentioned situation, an innovative test vehicle, whose undercarriage system can be optionally selected (including unconventional solutions), was designed and built. The experimental stand consisted of a rotary-tilting platform equipped in wheel weighting pads and a two-axis inclinometer. Completely new experimental results were presented, proving a strong influence of unconventional undercarriage system on vehicle rollover stability. Moreover, the extensive experimental investigation was used to derive and validate an accurate and universal mathematical model, enabling to calculate and improve the rollover stability of any four-wheeled vehicle. It was also shown that a geometrical optimisation of an unconventional undercarriage system permits an increase in rollover stability—even up to several dozen percentage relative to the conventional solutions.

Słowa kluczowe

EN

wheeled earthmoving vehicles; construction and excavation vehicles; off-road vehicles; rollover stability; unconventional undercarriage system; articulated frame steering

PL

maszyna budowlana; pojazd terenowy; podwozie

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2020
• Tom: Vol. 20, no. 2
• Strony: 320--338
• Opis fizyczny: Bibliogr. 27 poz., fot., rys., wykr.

Twórcy

autor

Sierzputowski G.

• Department of Vehicle Engineering, Wrocław University of Science and Technology, ul. Braci Gierymskich 164, 51-640 Wrocław, Poland

autor

Dudziński P.

• Department of Off-Road Machine and Vehicle Engineering, Wrocław University of Science and Technology, ul. Łukasiewicza 7/9, 50-371 Wrocław, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)