| Title | : | Two Modeling Primitives for Computer Aided Geometric Design |
| Speaker | : | Jinesh Machchhar (Technion - Israel Institute of Technology) |
| Details | : | Mon, 8 Jan, 2018 11:00 AM @ A M Turing Hall |
| Abstract: | : | Computer Aided Geometric Design concerns development of algorithms and accompanying software, towards design of parts and structures with a high degree of numerical precision. Target application domains include design of automobiles, aircrafts and buildings, among others. In this talk we discuss two kernel level modeling primitives. First, we propose a comprehensive algorithmic framework for computation of solid sweeps. This involves computing the boundary of the swept volume generated by moving the input solid along the input one-parameter-family of rigid motions in three dimensional space. In particular, we discuss local issues such as the parametrization of the boundary surface, detection and elimination of self-intersections, as well as global issues such as body-check and the topological data associated with the swept volume. Several examples from a prototype implementation in the ACIS modeling kernel will be shown. Applications include CNC machining verification, product handling and collision detection. Second, we demonstrate a robust computational interface for precise modeling of microstructures towards 3D printing. This is achieved through functional composition of B-spline functions and allows separate design of the micro and the macro structures of an object. In particular, we demonstrate construction of recursive, fractal-like microstructures which are composed of trivariate tiles with C0-discontinuities. Applications include design of porous and composite materials. This is joint work with Milind Sohoni, Bharat Adsul and Gershon Elber. About speaker: Jinesh Machchhar is a post-doctoral fellow in the faculty of computer science at Technion-Israel Institute of Technology. He obtained his Ph.D. from IIT Bombay under the guidance of Prof. Milind Sohoni and Prof. Bharat Adsul in 2015. He did his M.Tech from IIT Bombay and his bachelor of engineering from South Gujarat University. His research interests include geometric modeling, surface design and analysis, and software development for computer aided design and manufacturing. |
