| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
|
|---|
| Research Abstract |
It is quantitatively clarified by FE models with helical thread geometry how fatigue failures occur in bolted joints. Driving an empirical equation for estimating thermal contact resistance composed of dissimilar materials, thermal and mechanical behaviors of bolted joints are comprehensively studied. As for vibration problems of bolted joints, a numerical procedure is proposed to evaluate its natural frequencies by taking account of interface stiffness. Fundamental characteristics of multi-bolted joints, such as bolt preload scatter and shear load capacity when subjected to shearing force, are quantitatively examined.
|
