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Arnold Odrigo ; Moustafa El-Gindy ; Pär Pettersson (Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system) ; Zuzana Nedelkova (Institutionen för matematiska vetenskaper, matematik) ; Peter Lindroth ; Fredrik Öijer
International Journal of Vehicle Systems Modelling and Testing (2016)
[Artikel, refereegranskad vetenskaplig]

Ride comfort, fuel consumption and vehicle dynamics are of great importance in vehicle design, development and testing. For this reason, a method of generating a random road profile in three-dimensional space is explored. This is done by combining established mathematical theories of defining road curvature, topography and surface roughness. Though the generated profile is random by nature, its most important aforementioned characteristics are controlled using guidelines and parameters from real roads. Examples of these are the Volvo Global Transport Application (GTA) as well as the International Organization for Standardization (ISO). With the use of MATLAB to develop the program, statistical distributions and probability models are employed for generating the variations in both topography and curviness of the road. Topography is implemented in percent elevation gradients, while clothoid spirals are employed for creating a natural road curvature using tabulated road statistics. Finally, surface roughness will be defined through the use of standardised power spectral density values of ISO roughness classifications. The proposed road generator program creates a road which is independent of the vehicle itself, which is important to compare different vehicles or vehicle designs for same transport task. This is important to create a universally-compatible road profile for several tests. The road profiles will aid in various tests as required throughout the entire automotive industry.

Nyckelord: road profile; curvature; truck; topography; roughness; vehicle simulation

Denna post skapades 2016-10-05.
CPL Pubid: 242965


Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Fordonsteknik och autonoma system
Institutionen för matematiska vetenskaper, matematik (2005-2016)


Transportteknik och logistik
Teknisk mekanik

Chalmers infrastruktur