Translator Disclaimer
Paper
31 December 2008 Quality evaluation and optimization of freeform surface
Author Affiliations +
Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 71305Q (2008) https://doi.org/10.1117/12.819766
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China
Abstract
Freeform surface is very common in the shape design of industry products. Its quality is a key to reverse engineering. It is mainly evaluated from the precision and fairness which are studied. First the precision optimization is carried out by two steps: rough modification and fine adjustment according to the Least squares-based evaluation technique through control points repositioning and weight points adjusting respectively. Second the fairness which contradicts the precision is optimized form two aspects of local fairness and global fairness. In order to satisfy local fairness bad points are adjusted first and then for the global fairness a technique based on Wavelet theory is adopted. Finally, a computation program is developed with Visual C++ & OpenGL and some examples are dealt with by the methods. The results verify that the proposed methods are valid.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bin Zhang, Changcai Cui, and Gengpei Zhang "Quality evaluation and optimization of freeform surface", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71305Q (31 December 2008); https://doi.org/10.1117/12.819766
PROCEEDINGS
7 PAGES


SHARE
Advertisement
Advertisement
Back to Top