韦恩州立大学利用 ANSYS 网格划分解决方案优化生物力学研究
适用行业
- 汽车
- 设备与机械
适用功能
- 产品研发
- 质量保证
用例
- 网状网络
- 智慧校园
服务
- 测试与认证
关于客户
本案例研究的客户是位于美国的韦恩州立大学生物医学工程中心。该中心在冲击生物力学和汽车安全领域进行研究已有 60 多年的历史，使其成为该领域的领先机构。该中心还是人体有限元模型开发的先驱，该模型用于了解汽车碰撞过程中的伤害机制并设计对策。这些模型也被证明是骨科生物力学领域有用的研究工具，可用于更好地了解体内负载。
挑战
韦恩州立大学生物医学工程中心六十多年来一直致力于冲击生物力学和汽车安全方面的研究。他们是人体有限元模型开发的领先机构。这些模型用于了解汽车碰撞过程中的伤害机制并帮助设计对策。它们在骨科生物力学中也可用于了解体内负载。然而，由于使用显式有限元代码，典型的网格划分目标是遵循最小单元尺寸标准的高质量全六面体网格。解剖结构的复杂性和形状的不规则性使得网格划分成为这些模型开发中的关键任务。该团队通常使用基于医学成像（MRI 或 CT 扫描）重建的几何数据对骨骼和器官进行网格划分。
解决方案
韦恩州立大学的团队使用 ANSYS ICEM CFD 对几何体进行基本修复，并使用 ANSYS ICEM CFD Hexa 模块生成网格。六边形分块技术对于寻找可接受的网格拓扑非常有用。一旦基于最小尺寸约束生成网格，它就会在 ANSYS ICEM CFD 中进行质量优化，并导出为其预处理工具支持的格式。 ANSYS ICEM CFD Hexa 的主要优点是将可接受的网格划分拓扑的搜索与网格生成本身分开。这与自上而下的方法和简单的块编辑相结合，使团队能够独立于网格密度快速尝试各种网格划分拓扑，在不更改拓扑的情况下轻松更改单元密度，并对不同的块使用相同或相似的块拓扑个人。
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