Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/105893
Type of publication: master thesis
Field of Science: Transporto inžinerija / Transport engineering (T003)
Author(s): Karalius, Žygintas
Supervisor: Laurinaitis, Kastytis
Title: Lengvojo automobilio priekabos stabilumo tyrimas
Other Title: The research of vehicle trailer stability
Extent: 47 p.
Date: 11-Jun-2020
Keywords: Automobilis;Vehicle;Priekaba;Trailer;Stabilumas;Stability;Švytavimas;Yaw
Abstract: Šiame darbe pristatoma važiavimo greičio, krovinio masės paskirstymo priekaboje ir atstumo nuo automobilio kablio obuolio iki priekabos ašies įtaką priekabos skersiniams švytavimams. Buvo važiuojama 40, 60 ir 80 km/h greičiais, krovinio masės paskirstymas priekinei ir galinei daliai keičiamas 0-100 % ribose. Buvo parinkti trys atstumai nuo automobilio kablio iki priekabos ašies: 1850 mm, 2450 mm, 3500 mm. Atlikus bandymus nustatyta kad didėjant važiavimo greičiui didėja ir švytavimų amplitudė bei dažnis. Analizuojant atstumo nuo automobilio kablio obuolio iki priekabos ašies įtaką nustatyta, kad didinant atstumą didėja švytavimų amplitudė, tačiau jų dažnis sumažėja. Lyginant skirtingus krovinio masės išdėstymo santykius nustatyta, kad mažiausi švytavimai gaunami visą krovinio masę paskirsčius tolygiai visoje priekaboje, taigi nesant galimybės paskirstyti krovinio tolygiai rekomenduojama papildomai įvertinti pasirenkamą važiavimo greitį ir atstumą nuo automobilio kablio obuolio iki priekabos ašies.
This paper describes a research of driving speed, distance between vehicle hook and the trailer axis and distribution ratio of load mass influence to car trailer yaw glows. Three different driving speeds were selected: 40, 60 and 80 km/h, load mass distribution ratios were changed at range 0-100 %. Three different distances between vehicle hook and the trailer axis were selected for this research – 1850 mm, 2450 mm, 3500 mm. Tests have shown that as the driving speed increases, the yaws amplitude and frequency increases as well. Analyzing the influence of coupling length, it was found that increasing the coupling length the amplitude of the swing increases too, but their frequency decreases. Comparing different load mass distribution ratios, it was found that the lowest yaws are obtained due to the even load distribution in the trailer. If even distribution is impossible due to various factors, it is highly recommended to drive slower and/or select shorter distance between vehicle hook and the trailer axis.
Internet: https://hdl.handle.net/20.500.12259/105893
Appears in Collections:2020 m. (ŽŪA ŽŪIF mag.)

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