Design reuse in product shape modeling: A study of freeform feature reuse by signal processing techniques

Design reuse in product shape modeling: A study of freeform feature reuse by signal processing techniques

Wang, C.

Stappers, P.J. (promotor)
Vergeest, J.S.M. (promotor)

Design, Engineering and Production

2005-04-26

Lack of facilities in supporting design reuse is a serious problem in product shape modeling, especially in computer-aided design systems. This becomes a bottleneck of fast shape conceptualization and creation in consumer product design, which consequently prohibits creativity and innovation. In the past, several efforts have been made in order to improve this situation, with confined methodologies in the spatial domain, following conventional ways of geometrical operations. These domain dependent researches did not yield satisfactory solutions. Looking at the state of the art technologies, to find a better solution, an investigation applying interdisciplinary knowledge has to be conducted. The present study aimed at finding a systematic approach to support design reuse in shape modeling, especially Freeform Feature (FFF) reuse, by hypothesizing that a better solution could be achieved by applying signal processing techniques. This global goal was further decomposed into a number of concrete objectives, each correlated to a broad spectrum of domain specific knowledge. Investigations on relevant subjects enrich the aggregation of knowledge, especially that concerning computer-assisted technologies in industrial design field. Solutions of this study functionally extend the capability of shape modeling, and enhance the interchange ability of shape depiction between the spatial and the frequency domain. A number of examples were employed to test the methods and mathematical formulations proposed. The results affirm that the hypothesis works, and the methodology developed in this research are both effective and beneficial.

CAD/CAM
shape modeling
Fourier transforms
signal processing
shape descriptor

http://resolver.tudelft.nl/uuid:0fa61991-0b71-432f-962a-0bec67e7f3da

90-5335-051-9

Institutional Repository

doctoral thesis

(c) 2005 C. Wang