分散通信ミドルウェアHLA/RTIの宇宙機シミュレーションへの適用性評価

概要

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We have been developing a spacecraft simulation environment based on object-oriented design. The system consists of models of the hardware components, numerical solvers such as for dynamics and thermal conditions, the simulation framework to control the modules, and a simulation environment including a DB and GUI. The system enables distributed simulations for distributed parallel developments between the core bus system modules and the mission system modules, or distributing the CPU load. Moreover, it can verify on-board models (on-board software, hardware-in-the-loop). We examined a distributed computing middleware, High-Level Architecture/Run-Time Infrastructure (HLA/RTI) to evaluate the functions and the performance in spacecraft simulations. HLA/RTI was proposed by Defense Modeling and Simulation Office (DMSO), USA, and approved as an open standard of distributed simulation as IEEE Standard 1516 in September 2000. The performance of two types of RTI that depend on a volume of data to transmit/receive and a number of distributed modules was observed in different network environments. The two types were applied to a simplified H-IIA Transfer Vehicle (HTV) simulator to study the feasibility.
社団法人日本航空宇宙学会の論文
2004-04-05