Development of an impact-decreased bonnet of an automobile protecting a walker

• Project/Area Number: 20760144
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Dynamics/Control
• Research Institution: Gunma University
• Principal Investigator: MARUYAMA Shinichi Gunma University, 大学院・工学研究科, 准教授 (60344925)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 機械力学・制御 / 非線形力学

Research Abstract

In this research, utilization of nonlinear coupling between deflection and in-plain displacement in a thin-walled elastic body to develop an automobile bonnet with can minimize impact force for a walker in a traffic accident. For the design of an impact-decrease mechanism, nonlinear responses of a continuous elastic body subjected to an impact are analyzed. As a result, effects of a curvature and elastic constraint on the impact force are investigated in detail.