| 下颌骨三维有限元模型的边界约束设计 |
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| 引用本文： | 周学军,赵志河,赵美英,樊瑜波.下颌骨三维有限元模型的边界约束设计[J].华西口腔医学杂志,1999,17(1):0-32. |
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| 作者姓名： | 周学军 赵志河 赵美英 樊瑜波 |
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| 作者单位： | 华西医科大学附属口腔医院,安徽医科大学第一附院口腔医疗中心,四川联合大学土木工程及应用力学系 |
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| 摘 要： | 在微机上建立了颌骨三维正交各向异性有限元模型，并模拟咀嚼肌，韧带等边界约束。方法采用活休 少年人颅为标本，用ＣＴ扫描技术，图形数字化仪等方法在微机上建模，采用柔索约束，受压间隙元等形进行边界约束。
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| 关 键 词： | 下颌骨 有限元模型 边界约束 三维有限元法 |
| 收稿时间： | 1999-02-25 |
| 修稿时间： | 1999-02-25 |
The Boundary Design of Mandibular Model by Means of the Three-dimensional Finite Element Method |
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| Zhou Xuejun,Zhao Zhihe,Zhao Meiying,Fan Yubo.The Boundary Design of Mandibular Model by Means of the Three-dimensional Finite Element Method[J].West China Journal of Stomatology,1999,17(1):0-32. |
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| Authors: | Zhou Xuejun Zhao Zhihe Zhao Meiying Fan Yubo |
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| Institution: | College of Stomatology, West China University of Medical Sciences. |
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| Abstract: | Objective:To construct the mandibular model and simulate the boundary conditions by means of the three dimensional finite element method.Methods: A juvenile mandible, including TMJ, was scanned transversely by CT, then a three dimensional finite element model of mandible was constructed. At the same time, the functions of stomotologic musles and ligaments and the functional actions of temporomandibular joint (TMJ) were simulated by means of cable elements and compressive gap elements respectively.Results: The cable elements were consistent with the functions of stomotologic musles and ligaments, and the gap elements were similar to the boundary conditions of the TMJ and teeth.Conclusion: Cable and gap elements are reasonable boundary conditions of the finite element model of mandible, which will improve the similarity of the model. |
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| Keywords: | mandible the finite element model boundary condition three dimensional finite element method |
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