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Title:Simulacija naleta tovornega vozila ob cestno varnostno ograjo
Authors:ID Borovinšek, Matej (Author)
ID Vesenjak, Matej (Author)
ID Ulbin, Miran (Author)
ID Ren, Zoran (Author)
Files:URL http://www.dlib.si/details/URN:NBN:SI:doc-XZSV1B23
 
Language:Slovenian
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Cestno varnost lahko izboljšamo s postavitvijo cestnih varnostnih ograj, ki preprečujejo udeležencem cestnega prometa vstop v nevarna območja. Za dvig stopnje varnosti morajo biti cestne varnostne ograje oblikovane tako, da pri naletu vozila le-to preusmerijo nazaj na cestišče. Med preusmerjanjem vozila morajo s svojo deformacijo absorbirati čim večjo količino kinetične energije, da se zmanjšajo pojemki potnikov v vozilu. V prispevku je predstavljena računalniška simulacija naleta tovornega vozila ob cestno varnostno ograjo. Izvedene so bile parametrične računalniške analize za oceno primernosti različnih dodatnih elementov varnostne ograje. Za izvajanje eksplicitnih dinamičnih analiz je bil uporabljen program LS-DYNA. Računalniske simulacije dokazujejo, da je nosilnost analizirane ograje dovolj velika, da tovornjak zadrži in preusmeri nazaj na cestišče. Hkrati pa se pokaze tudi ustrezno visoka stopnja akumulacije kinetične energije vozila v obliki deformacije cestne varnostne ograje, kar zmanjša pojemke vozila in se kaže v povečani stopnji varnosti za potnike v vozilu.
Publisher:Association of Mechanical Engineers and Technicians of Slovenia et al.
Year of publishing:2006
Number of pages:str. 101-111
Numbering:Letn. 52, št. 2
PID:20.500.12556/DKUM-52935 New window
UDC:625.745.5:656.08
ISSN on article:0039-2480
COBISS.SI-ID:9188635 New window
NUK URN:URN:SI:UM:DK:KH1DVOAC
Publication date in DKUM:10.07.2015
Views:954
Downloads:53
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.]
ISSN:0039-2480
COBISS.SI-ID:762116 New window

Secondary language

Language:English
Title:Simulating the impact of a truck on a road-safety barrier
Abstract:Road safety can be improved by applying appropriate road-safety barriers that prevent road-traffic participants from entering dangerous areas. In terms of preventing vehicles from veering off the road, a road-safety barrier should redirect the impacting vehicle back onto the road. In the process of doing so it should absorb as much of the vehicle's kinetic energy as possible through its deformation, so reducing the deceleration of the vehiclećs occupants. This paper considers a computer simulation of a truck's impact on a steel road-safety barrier. Parametric computer simulations were used to evaluate the different additional safety elements of the road-safety barrier. The dynamic finite-element explicit code LS-DYNA was used for this purpose. The computer simulations prove that the analyzed road-safety barrier design is strong enough to retain and redirect the truck back onto the roadway. Appropriately, the high absorption of the impacting vehicle's kinetic energy through the safety-barrier deformation is observed at the same time, which indicates a reduction in a vehicle's deceleration, and with that, a higher safety level for the vehicle's occupants.
Keywords:road safety, road safety barrier, impact simulations, dynamic simulations, LS-DYNA


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