複合物理領域モデリング＆動的シミュレーション技術を活用した宇宙システムに対するシステム視点でのリスク分析手法

抄録

The proper and comprehensive identification of system-level failure mode during risk assessment with space systems has difficulty due to complexity of system-level interactions which involves multi-physics and dynamic phenomena. This study considers potential system-level failure mode identification by using the multi-physics modeling and dynamic simulation-based approach for system-level risk assessment with space systems. The proposed approach is based on the use of the multi-physics modeling language Modelica, an equation-based object-oriented modeling language which allows acausal modeling for complex cyber-physical systems. Modelica has an important capability of modeling for system-level interactions which involves multi-physics and dynamic phenomena. In this study, the technical feasibility and expected effect of this approach are discussed based on the trial results of this proposed approach.