感度解析による構造物の振動インテンシティの制御

抄録

In this paper, sensitivity analysis focusing on the vibration intensity is proposed. Although research on vibration intensity had been conducted, the method to control it has not been established. In this study, a sensitivity analysis equation to predict the change in vibration intensity due to the addition of mass, stiffness, and damping is derived, and the change in vibration intensity is examined using a finite element method (FEM) model, and appropriate structural changes are discussed. In the FEM beam model, the change in vibration intensity predicted by the proposed sensitivity analysis equation is found to be consistent with the actual change due to structural changes. The structural changes based on the sensitivity analysis allowed us to control the vibration intensity and to reduce the vibration intensity at the target location. This paper confirms the validity of the proposed sensitivity analysis formulae for mass addition and stiffness addition using FEM models.