Research for Dynamic Characteristics of Cylinder with Thin Flange Bolted Joints.
Eiichi Ishida, Takayuki KOIZUMI, Nobutaka TSUJIUCHI
Abstract
Eiichi Ishida, Takayuki KOIZUMI, Nobutaka TSUJIUCHI
Abstract
In order to investigate the dynamic characteristics of bolted joint part, we carry out the experiment and FEM dynamic simulation with contact for the cylinder connected with flange by 6 bolts. As the result, we confirmed that FEM dynamic simulation with contact coincide with experiment, and cleared that as for thick flange, the dynamic characteristics of bolted joint part is not influenced by contact pressure of flange surface, on the contrary as for thin flange, contact pressure of flange surface influences the dynamic stiffness of bolted joint. So, it is cleared that we can improve the dynamic characteristics of bolted joint part by about 100%, controlling the contact mode of thin flange easily.
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In order to investigate the dynamic characteristics of bolted joint part, we carry out the experiment and FEM dynamic simulation with contact for the cylinder connected with flange by 6 bolts. As the result, we confirmed that FEM dynamic simulation with contact coincide with experiment, and cleared that as for thick flange, the dynamic characteristics of bolted joint part is not influenced by contact pressure of flange surface, on the contrary as for thin flange, contact pressure of flange surface influences the dynamic stiffness of bolted joint. So, it is cleared that we can improve the dynamic characteristics of bolted joint part by about 100%, controlling the contact mode of thin flange easily.
Key concepts: Flange, Bolted joint, Structural engineering, Joint (building), Finite element method, Clearance, Stiffness, Cylinder