...在网格划分时极易出现网格畸变,另外,应力分布不均匀需应力修匀等后处理措施也降低了其模拟效率。近年来出现的一种无单元法(meshless method),它摆脱了网格的束缚,采用节点来进行局部离散,由移动最小二乘法来拟合场函数,其计算精确度更高、更为简便,能处理有限元法许...
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无单元法(EFG,Element-Free Galerkin method) 的出现为上述问题的解决提供了新的思路和方法。
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边界无单元法 Boundary Meshless Method ; Boundary element-free method
如无单元法 EFM ; Element FreeMethod
而无单元法 Element Free Method ; EFM
无限单元法 finite element method
无单元网格法 meshless method
点插值边界无单元方法 BPPIM
无单元伽辽金法 Element-Free Galerkin Method ; EFG ; EFGM
边界无单元的方法 BEFM
杂交型无单元伽辽金法 Hybrid Element-free Galerkin Method
The element-free method (EFM) has great advantages comparing with the finite element method (FEM) such as simply preprocessing and post-processing and high precision of computation, especially applied in simulation of crack propagation.
与有限元法相比,无单元法具有前后处理简单、计算精度高的优点,尤其在模拟裂纹扩展方面具有其它数值方法无法比拟的优势。
参考来源 - 基于无单元法的应力—渗流—损伤耦合模型的水力劈裂研究Meshless method developed recently is a new type of numerical methods. It was introduced for solving many PDEs.
无单元法是近年来发展起来的求解偏微分方程的一种新型数值计算方法,它告别了对单元的依赖。
参考来源 - 径向基无单元法及其在MEMS电磁场数值分析中的应用Based on two different kinds of ideology(finite element method and meshless method are introduced into MM respectively),the basic theory and research progress of manifold method are summarized,and some perspectives for its application are put forward.
从流形方法的二种发展思路(一种把有限单元法和不连续变形分析融入流形方法;另一种是把无单元法引入流形方法)出发分别对其进行综述,介绍其研究成果和应用进展,并提出几点浅略的看法。
参考来源 - 流形方法及其研究进展Nevertheless, a troublesome job within the meshlessmethod is the enforcement of essential boundary conditions. Hence, weemployed meshless-FE coupling method in biomechanical analysis of theTMJ and the results between meshless-FE coupling method and FEM wascompared and analysed.
为弥补无单元法不易施加强制边界条件的不足,我们现将它与有限元法进行耦合应用于颞下颌关节的生物力学分析,并将所得结果与有限元法进行比较,以探讨此法是否优于传统的有限元法,为颞下颌关节生物力学数值模拟分析引进一种更新更有效的方法。
参考来源 - 正常人牙尖交错位紧咬牙时颞下颌关节无单元—有限元耦合法二维生物力学分析·2,447,543篇论文数据,部分数据来源于NoteExpress
无单元法是求解比奥固结问题的一种新型数值方法。
Meshless method is a new type numerical method of solving the Biots consolidation problem.
本文采用无单元法分析了功能梯度材料的断裂力学问题。
The fracture problem of the functionally graded material (FGM) is analyzed using the element-free method (EFM).
插值基函数对插值函数以及无单元法的计算精度影响很大。
The numerical results of linear, quadratic and cubic basis functions were compared and some suggestions on the choice of basis functions were put forward.
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