In this paper a systematic approach of repairing polygonal meshes is developed for volume meshing, which can then be used in finite element analyses. All poor-quality elements are classified into three general categories: point element, line element, and overlapped element. A robust iterative scheme is proposed to remove all poor-quality elements progressively, leading to a successful volume me...

Consider an algorithm for generating a triangle mesh interpolating a fixed set of 3D point samples, where the generated triangle set varies depending on some underlying parameters. In this paper we treat such an algorithm as a means of sampling the space of possible interpolant meshes, and then define a more robust algorithm based on drawing multiple such samples from this process and averaging...

Once an organization decides to develop a software product line (SPL), one of the first activities that needs to be done is to build a domain model. Here, commonalities and variabilities are identified, as well as the particular characteristics that products of the SPL will have. Although there exist some methods proposed for domain modeling, they are general and not specifically designed for s...

In this paper, we present a method for generating hex-dominant meshes with targeted all-hex regions over closed volumes. The method begins by generating a piecewise-continuous metric tensor field over the volume. This field specifies desired anisotropy and directionality during the subsequent meshing stages. Meshing begins with field-guided tiling of individual structured hexahedral fronts wher...

Throughout this thesis, there is an underlying assumption that the quality of a computer graphics image is important. This thesis reports research into computer image synthesis for obtaining this quality. The introduction of discontinuity meshing into existing radiosity techniques has enabled images to be produced at levels of previously unobtainable quality. However, discontinuity meshing is a...

Abstract. Based on the space curve meshing equation, a novel helical gear mechanism with improved geometry is presented. First, equations of theoretical contact curves were derived based theory. Then, tooth surfaces concave–convex form constructed, depending curves. The profiles as corrected by predestining designed transmission errors. effect center distance error errors was studied, and effec...

A major difficulty in finite element analysis is the preparation of an effective mesh leading to a good response solution. In engineering analyses of complex components, oftentimes, much more time is spent to arrive at an adequate mesh than to obtain the solution of the established finite element model. The difficulty in meshing is due to the fact that finite elements need to abut each other an...

We describe a domain decomposition (DD) algorithm for use in the parallel adaptive meshing paradigm of Bank and Holst [3, 4]. 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.