| 在冲击弹体作用下梁的反直观行为研究 |
| |
| 引用本文： | 李海旺,秦冬棋.在冲击弹体作用下梁的反直观行为研究[J].固体力学学报,2006,27(2):121-126. |
| |
| 作者姓名： | 李海旺 秦冬棋 |
| |
| 作者单位： | 太原理工大学土木系 太原030024 |
| |
| 基金项目： | 山西省归国留学基金(200335)资助 |
| |
| 摘 要： | 用数值模拟方法,分析简支梁在弹体冲击下梁的反直观行为.研究了在跨中受弹体冲击引发反直观行为时,梁的位移时程曲线、最终变形模式、能量关系及引发反直观行为对应的弹体速度范围等特性.并探讨了弹体偏离梁的中点冲击时,对梁的反直观行为的影响.研究表明:不论弹体冲击梁的中点或偏离梁的中点冲击时,梁都会发生反直观行为,并具有许多共同的动力响应特点.
|
| 关 键 词： | 反直观动力响应 数值分析 简支梁 弹体冲击 冲击速度 |
| 修稿时间： | 2004年12月30 |
A STUDY ON THE COUNTER-INTUITIVE BEHAVIORS OF SIMPLY SUPPORTED BEAM UNDER PROJECTILE IMPACT |
| |
| Li Haiwang Qin Dongqi.A STUDY ON THE COUNTER-INTUITIVE BEHAVIORS OF SIMPLY SUPPORTED BEAM UNDER PROJECTILE IMPACT[J].Acta Mechnica Solida Sinica,2006,27(2):121-126. |
| |
| Authors: | Li Haiwang Qin Dongqi |
| |
| Abstract: | The counter-intuitive behaviors of simply supported beams under the projectile impact are investigated with ANSYS/LS-DYNA.It studie in detail the displacement-time history curves,final deformed shapes,energy relationships and projectile impact speed ranges related to their counter-intuitive behaviors.The influence of the impact position on the counter-intuitive behaviors is also discussed.The results show that the counter-intuitive behaviors of the beams occur under the projectile impact on both the mid-span and the position away from the mid-span,and have similar dynamic response characteristic. |
| |
| Keywords: | anomalous response numerical analyses simply supported beam projectile impact impact velocity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
