Journal Article
A Study on Unsteady Aerodynamic Characteristics Acting on Front Fenders of Motorcycles during Steering Motion
2022-03-29
2022-01-0897
Compared to a four-wheeled vehicle, a two-wheeled vehicle’s steering motion has a greater influence on roll behavior as well as yaw. On the other hand, the effect of the aerodynamic characteristics of the front fender on the steering moment has not been clarified. Therefore, a sensory evaluation test was important to know its influence on actual vehicle behavior. In this study, a basic technology to understand the aerodynamic characteristics of the front fender that affect the vehicle behavior of motorcycles was developed. In addition, CFD analysis was used to analyze the generation mechanism of the aerodynamic characteristics during the steering motion. First, the aerodynamic characteristics during the steering motion on the actual vehicle were measured using the wind tunnel facility. Next, the tests in the wind tunnel were reproduced in the CFD analysis using a moving and deforming mesh.