Global Sensitivity Analysis of Joints for Plug-in Digital Framework

플러그인 디지털 프레임웍을 위한 연결부 전역민감도 해석

  • Received : 2016.01.11
  • Accepted : 2016.03.07
  • Published : 2016.05.01


Plug-In Digital Framework is a system response analysis tool that is employed when system components are composed of black-box modules. Generally, the dynamic characteristics of joints between the system components significantly affect system responses, and they lead to displacement- and frequency-dependent stiffness and loss factor. Thus, the sensitivity of each joint parameters should be estimated from a global perspective. In this study, we introduce a global sensitivity analysis procedure under the Plug-In Digital Framework. To efficiently calculate the system responses, we introduce the frequency response function (FRF)-based substructuring method. Using the random balance designs (RBD), we generate the system responses and estimate the global first-order sensitivities for each joint stiffness. We apply the proposed global sensitivity analysis method to an interior noise problem of a passenger car, and we evaluate the efficiency of the global sensitivity analysis method.


Global Sensitivity Analysis;FRF-based Substructuring;Random Balance Design


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Supported by : 산업통상자원부