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发表时间：2022-10-06

发表刊物：计算力学学报

所属单位：运载工程与力学学部

期号：3

页面范围：328-334

ISSN号：1007-4708

摘要：When using boundary element method (BEM ) to solve practical engineering problems ,consid‐erable error comes from the discretization error .To overcome this problem ,an algorithm for using isoparametric tube elements in BEM is proposed based on the Lagrange interpolation formulation .This type of elements can well model the geometry with tube shapes and interpolate physical quantities defined on the tube surface .As a result ,the discretization error can be reduced considerably .In addition , a new technique for eliminating singularities involved in the boundary integrals is also presented in the intrinsic plane when using the proposed isoparametric tube elements in BEM .Numerical examples show that the proposed elements have the advantages of less element discretization and high computational accuracy .

备注：新增回溯数据