Peak Displacement Response Analysis of Bolted Flange Dual-Joint Rocket Structure with Shear Pin
The dynamic response of a bolted flange structure with a single-joint surface containing shear pin is significantly affected by the inclination angle of the shear pin,while the practical rocket structure mostly adopts the form of dual-joint surfaces and three compartments.Therefore,in this paper,the simplified dynamic model of bolted flange structure with single-joint surface is extended to establish the simplified dynamic equation of a three-compart-ment rocket structure with dual-joint surfaces for studying the transverse and longitudinal coupling vibration of the structure.By transforming the contact nonlinearity into the problem of structures with different stiffness under tension and compression considering the influence of shear pin,a simplified dynamic model of a dual-joint rocket with six de-grees of freedom is established.Through dynamic simulation,the influence trend of shear pin inclination on the peak displacement response of dual-joint rocket structure under impact load is found.
NETL
NSTL
万方数据
维普
