Yokohama Rubber Approach Aerodynamically Efficient Tyres.
Exa Corporation, a global innovator in simulation software for product engineering, has helped Yokohama Rubber, one of the leading global tire manufacturers, to develop advanced new aerodynamic tires through simulation-driven design with Exa PowerFLOW software. New, pronounced fins on the tire sidewall assist to streamline airflow around the tires when in motion and contribute to the overall efficiency and safety of the vehicle.
The ever-growing need to improve efficiency – to cater for the demanding needs of modern customers, as well as to achieve challenging global emissions targets – has long posed a challenge within the automotive supplier sector. However, as tires are in constant motion and are fitted to the outside of the chassis, they also have a direct impact upon the overall aerodynamic performance of the vehicle, and require separate efficiency solutions.
While the impact caused by flow around the tires can be considerable, it is still difficult to precisely analyze and optimize the design of the tire using conventional development procedures such as wind tunnel testing. “To address this challenge, we tried various simulation solutions on the market to accurately process our optimization approaches. But only Exa’s PowerFLOW software was capable of simulating the rotating tire characteristics within a short time while still taking into account the small scale adjustments we were attempting. PowerFLOW also provided the required results within a very limited timeframe, which is crucial to comply with our swift lifecycle-development processes,” says Dr. Yuji Kodama, General Manager, Research & Development Center, The Yokohama Rubber Co., Ltd.