THE OPTIMAL DESIGN OF BOLT JOINTS UNDER DYNAMIC LOADING

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.