| 动载荷下螺栓连接的优化设计 |
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| 引用本文： | 陈学前,杜强,冯加权.动载荷下螺栓连接的优化设计[J].力学与实践,2005,27(6):32-35. |
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| 作者姓名： | 陈学前 杜强 冯加权 |
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| 作者单位： | 中国工程物理研究院结构力学研究所,绵阳,621900 |
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| 摘 要： | 把螺栓法兰密封连接结构简化成-质量、弹簧、阻尼系统，其中阻尼包括黏性阻尼和库仑阻尼两个部分。用此模型对法兰在指数衰减脉冲激励下的响应进行了数值仿真，研究了螺栓中预应力、螺栓个数、法兰螺栓间的阻尼对法兰结构响应的影响，螺栓中预应力和螺栓个数对螺栓变形峰值有较大影响，阻尼对螺栓峰值的影响较小。
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| 关 键 词： | 螺栓 预应力 库仑阻尼 响应 优化设计 |
| 收稿时间： | 2004-12-09 |
| 修稿时间： | 2005-07-20 |
THE OPTIMAL DESIGN OF BOLT JOINTS UNDER DYNAMIC LOADING |
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| CHEN Xueqian,DU Qiang,FENG Jiaquan.THE OPTIMAL DESIGN OF BOLT JOINTS UNDER DYNAMIC LOADING[J].Mechanics and Engineering,2005,27(6):32-35. |
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| Authors: | CHEN Xueqian DU Qiang FENG Jiaquan |
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| Institution: | Institute of Structural Mechanics, CAEP, Mianyang 621900, China |
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| Abstract: | A mass-spring-damper model for the structure of bolt-flange is put forward, with viscous damping and coulomb damping. Simulation is carried out with an exponentially decayed pressure pulse acting on the flange. In the simulation the effect of the pre-stress in bolts, the bolt numbers, the damping between flange and bolts is studied. The pre-stress in bolts and the bolt numbers have a great effect on the peak of bolt deformation. The damping has not much effect in this respect. |
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| Keywords: | bolt pre-stress coulomb damping response |
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