Driveline instability of racing motorcycles in straight braking manoeuvre
| Autor: | Stefano Cattabriga, Luca Leonelli, Silvio Sorrentino |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Motorcycle
Stability Chatter Driveline Slip Stiffness Oscillation Computer science Powertrain Mechanical Engineering Driveline Work (physics) Slip Stiffness 020302 automobile design & engineering 02 engineering and technology Vibration Mechanism (engineering) Axle 020303 mechanical engineering & transports 0203 mechanical engineering Motorcycle Control theory Range (aeronautics) Chatter Time domain Stability |
| Zdroj: | Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 232:3045-3061 |
| ISSN: | 2041-2983 0954-4062 |
| Popis: | Experimental evidence shows that a self-excited vibration may appear during braking manoeuvres performed by road-racing motorcycles. It involves vertical oscillation of front and rear wheel axles as well as angular oscillation of the driveline in a frequency range between 17 and 22 Hz. As a consequence, severe oscillations of the tyre-ground vertical loads can be observed, leading to a loss of grip and ultimately weakening the vehicle overall performance. Several contributions on this topic can be accounted for in the literature; however, a comprehensive description of the phenomenon has not been given yet. The present work is aimed at simulating the above vibration with a planar multibody motorcycle model, and then at analyzing its driving mechanism. Stability maps are drawn for time-invariant braking manoeuvres, and validated with respect to time domain simulations. |
| Databáze: | OpenAIRE |
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