Dynamic Characteristics of Structures With Bolted Joint
Dynamic Characteristics of Structures With Bolted Joint
复制标题
螺栓连接结构的动力特性
DOI：
10.1115/pvp2002-1085
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
S. Aoki
中科院分区：
文献类型：
--
作者：
S. Aoki
螺栓连接广泛应用于压力容器和管道系统。人们对螺栓连接的强度进行了大量的研究。然而，对螺栓连接结构的动力特性研究却很少。本文研究了螺栓连接对结构动力特性的影响。首先，测试了几种螺栓连接试件的阻尼比和固有频率。所得结果与无螺栓连接的试件进行了比较。结果表明，阻尼比增大，固有频率降低。其次，利用简化模型研究了螺栓连接对结构随机振动响应的影响。螺栓连接结构的加速度响应标准差小于无螺栓连接结构。Copyright © 2002 by ASME
Bolted joints are widely used for pressure vessels and piping system. Many studies on strength of bolted joint are carried out. However, few studies on dynamic characteristics of structure with bolted joint are carried out. In this paper, the effect of bolted joints on dynamic characteristics of structure is examined. First, the damping ratio and the natural frequency of specimens with some types of bolted joints are measured. Obtained results are compared with those for the specimen without bolted joint. It is found that damping ratio increases and the natural frequency becomes lower. Next, the effect of bolted joint on random vibration response of structure using simplified model is examined. Standard deviation of acceleration response of structure with bolted joint is lower than that of structure without bolted joint.Copyright © 2002 by ASME