Application of Boundary Element Methods to Extended Bond Graphs

9414640 Masada在本研究项目中，开发了一种统一的方法，结合扩展键合图法，有限元分析和边界元法，用于多能量动态系统的建模和分析。这些包括弹性动力学和机电系统和固体-流体相互作用模型。研究结果被应用到振动平板，并在磁场中的导电梁。这些系统的比较使用的基本概念的保护，本构关系，离散化，虚拟的概念，能量/功率转换，和数值公式。这三种成熟的技术的结合极大地扩展了它们各自的能力，并为多能量系统制定了一个强大的建模和分析工具。 ***

9414640 Masada In this research project, a unified approach is developed combining the extended bond graph method, finite element analysis, and boundary element method for modeling and analysis of multi-energetic dynamic systems. These include elasto-dynamic and electro-mechanical systems and solid-fluid interaction models. The research results are applied to a vibrating flat plate, and a conducting beam in a magnetic field. Comparisons for these systems are made using the fundamental concepts of conservation, constitutive relations, discretization, virtual concepts, energy/power transformation, and numerical formulations. The combination of the three well-established techniques greatly extends their individual capabilities and leads to the formulation of a powerful modeling and analysis tool for multi-energetic systems. ***