In order to study the dynamic meshing characteristics of the elliptic cylinder gear and obtain the meshing error of the gear transmission system, the two-dimensional static contact analysis of the gear tooth surface is carried out by using ANSYS software, and the key parts of the contact area of the tooth surface are determined. Then, the dynamic meshing model of the elliptic cylinder gear is e...

We are concerned with Delaunay mesh generation methods and mesh adaptivity issues Planar surface and volume meshing have been automated to a large extent Over the last few years meshing activities have been focused on adap tive schemes where the features of a solution eld must be accurately captured To this end meshing techniques must be revisited in order to be capable of complet ing high qual...

This paper proposes a practical, topologically robust and ranging error resistive shape modeling procedure that approximates a real 3D object with the matrix-formatted organized meshing for the 3D shape processing. A geometric model with desired meshing, not limited to triangular one, but also quadrilateral, hexagonal or n-gonal mesh, is directly reconstructed based on a solid modeling approach...

An adaptive three-dimensional mesh generation strategy is presented. In contrast to other work which is based on simple meshing techniques, we use advanced unstructured meshing techniques, driven by error estimators, to realize automatic adaptation and guarantee quality. The mesh optimization strategy is based on a classification scheme with a fuzzy indexing for the degree of degeneration of th...

We describe a domain decomposition algorithm for use in the parallel adaptive meshing paradigm of Bank and Holst. Our algorithm has low communication , makes extensive use of existing sequential solvers, and exploits in several important ways data generated as part of the adaptive meshing paradigm. Numerical examples illustrate the effectiveness of the procedure. In [4, 5], we introduced a gene...

This paper proposes a practical, topologically robust and ranging error resistive shape modelling procedure that approximates a real object, with the matrix-format data structure, for 3D shape processing. Virtual manipulations, such as local shape modification and transcription are demonstrated. A geometric model with the desired meshing is directly reconstructed based on a solid modelling appr...

This paper proposes a method for predicting the complexity of meshing Computer Aided Design (CAD) geometries with unstructured, hexahedral, finite elements. Meshing complexity refers to the relative level of effort required to generate a valid finite element mesh on a given CAD geometry. A function is proposed to approximate the meshing complexity for single part CAD models. The function is dep...