Development of Technology Reducing Tire Radiation Noise and Rolling Resistance Simultaneously

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420184
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dynamics/Control
• Research Institution: Kanagawa Institute of Technology
• Principal Investigator: Ishihama Masao 神奈川工科大学, 創造工学部, 教授 (20298277)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 自動車 / タイヤ / CO2 / 騒音 / 転がり抵抗 / モデル化 / 振動

Outline of Final Research Achievements

Mathematical modeling of tire structure vibration and radiation noise by road surface excitation has been achieved. Also, a mathematical model of aerodynamic pumping sound generation by road surface contact was constructed. As a result, more accurate prediction of the influence of main tire dimensions, structural design factors, and road surface roughness on radiated noise became possible. Further, a new technology was created to reduce tire vibrations without increasing the rolling resistance by placing non - Newtonian damping material inside the tread. As a result, creation of the next generation tire concept having large diameter, narrow width and high inflation pressure superior in both environmental and safety performance. The design concept was confirmed its validity through experiments.

Free Research Field

自動車の振動騒音