Abstract
Vibration analysis plays an essential role to enhance the design of the vehicle, related to its comfort and safety level. It is useful to determine the relations between the road profile or its characteristics to the particular properties of vehicles and evaluate the dynamic response to the applied road profile. During the design stage, the simulation of vehicle suspension requires an input of road surface for the initial dynamic load. Therefore, an artificial road profile, created according to a specific methodology, is a key to overall research success. It is possible to generate an artificial road profile using several mathematical methods. This paper is dedicated to analyzing and comparing the usability and ISO-compatibility of three methods: White noise filtration, sinusoidal approximation, and moving average of white noise. Furthermore, we modified the sinusoidal approximation, additionally using a windowing function, thus removing sharp jumps in a generated road profile. Each analyzed method has its advantages and disadvantages, therefore, proper choice in profile generation was a goal of the provided analysis. We defined that the moving average of white noise filtration method has the highest implementation perspectives due to the best compliance to the desired ISO-defined road profile shape and independence from simulation velocity.
Highlights
A road pavement can be realized in different ways and using various materials, but in every case, its surface is never perfectly flat, even, and smooth
For all the reasons listed above, it is useful to determine the relations between the road profile with its characteristics, types of vehicles, and dynamic response of the entire vehicle suspension
The aim of our research is to provide a suitable methodology for the generation of an artificial, ISO 8608 compatible road profile in 1000 m length fragments
Summary
A road pavement can be realized in different ways and using various materials, but in every case, its surface is never perfectly flat, even, and smooth. If the line is following the road direction, the profile is determined as a longitudinal profile The latter describes the roughness or unevenness and texture of the road. Defining the relations between the vehicle and road surface is necessary to describe the road profile This issue can be solved in two ways: Measuring the profile of the real road, or generating an artificial profile with the prescribed parameters. The aim of our research is to provide a suitable methodology for the generation of an artificial, ISO 8608 compatible road profile in 1000 m length fragments. This paper brings some effort to improve the quality of the generated road profile by implementing the three approaches and evaluating their output as the road profile by checking their Gaussianity and correspondence to the road profile, defined by the ISO 8608 standard.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
