摘要
把螺栓法兰密封连接结构简化成一质量、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．
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.
出处
《力学与实践》
CSCD
北大核心
2005年第6期32-35,共4页
Mechanics in Engineering
