Analysis on Vibration Characteristics of Bus Body Structure using Sensitivity Analysis of Component Structures

부분구조의 민감도해석을 이용한 버스차체의 진동특성 분석

In this paper, a sensitivity analysis technique is presented for performing effective structural optimization of bus system. Design sensitivities are analyzed on natural frequency of bus substructures using super-element. Vibration modes of substructure, which large affect on the global vibration mode of bus B.I.W., are found through the sensitivity analysis using the chain rule. And design variables, which are determined from the sensitivity analysis, are changed through optimum design.