Using Computer Design and Simulation to Improve Manufacturing Productivity. Reporting Period 4

摘要

The most significant development in the past three months has been our group's commitment to develop a uniform platform for specifying geometric objects and operations. The necessity for such a framework became obvious as the number of people in the project grew, and we needed to unify our research and avoid duplication of code. The platform, written in CLOS (Common Lisp Object System), will facilitate the use of various parallel architectures, and will allow programming at higher levels of abstraction, interchangeability of packages written at different institutions, and better documentation. The platform will include a geometric modeler, an algebra package, a utilities package (to include basic data structures and finite sets), a graphics package, and a finite element mesh generation package. Initial efforts will be focused on the geometric modeler and the algebra package. The finite element mesh generation package is an application that is built on top of these two packages. The utilities package will contain the basic data structures and other tools necessary for programming, and will be developed as needed. (jes)