Construction of Three-Dimensional Road Surface and Application on Interaction between Vehicle and Road
| Autor: | Zhang Junning, Huai Wenqing, Lu Yongjie |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Surface (mathematics)
050210 logistics & transportation Article Subject Mechanical Engineering 05 social sciences Perspective (graphical) Mathematical analysis 02 engineering and technology Geotechnical Engineering and Engineering Geology Condensed Matter Physics Midpoint lcsh:QC1-999 Displacement (vector) 020303 mechanical engineering & transports Fractal 0203 mechanical engineering Mechanics of Materials Road surface 0502 economics and business Rectangle Contact area lcsh:Physics Geology Civil and Structural Engineering |
| Zdroj: | Shock and Vibration, Vol 2018 (2018) |
| ISSN: | 1875-9203 1070-9622 |
| DOI: | 10.1155/2018/2535409 |
| Popis: | The quantitative description is given to three-dimensional micro and macro self-similar characteristics of road surface from the perspective of fractal geometry using FBM stochastic midpoint displacement and diamond-square algorithm in conjunction with fractal characteristics and statistical characteristics of standard pavement determined by estimation method of box-counting dimension. The comparative analysis between reconstructed three-dimensional road surface spectrum and theoretical road surface spectrum and correlation coefficient demonstrate the high reconstruction accuracy of fractal reconstructed road spectrum. Furthermore, the bump zone is taken as an example to reconstruct a more arbitrary 3D road model through isomorphism of special road surface with stochastic road surface model. Measurement is taken to assume the tire footprint on road surface to be a rectangle, where the pressure distribution is expressed with mean stiffness, while the contact points in the contact area are replaced with a number of springs. Two-DOF vehicle is used as an example to analyze the difference between three-dimensional multipoint-and-plane contact and traditional point contact model. Three-dimensional road surface spectrum provides a more accurate description of the impact effect of tire on road surface, thereby laying a theoretical basis for studies on the dynamical process of interaction of vehicle-road surface and the road friendliness. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |