FEATURE-BASED SURFACE MODELING OF COMPLEX SURFACE IN REVERSE ENGINEERING

2000 ◽  
Vol 36 (05) ◽  
pp. 18 ◽  
Author(s):  
Jiangxiong Li
Keyword(s):  
Reverse Engineering ◽  
Complex Surface ◽  
Surface Modeling ◽  
Feature Based

Integrating Freeform and Feature-Based Fitting Methods

2004 ◽  
Author(s):  
H. James de St. Germain ◽  
David E. Johnson ◽  
Elaine Cohen
Keyword(s):  
Reverse Engineering ◽  
Surface Fitting ◽  
General Purpose ◽  
Freeform Surface ◽  
Domain Expert ◽  
Coordinate Measurement ◽  
Reverse Engineer ◽  
Model Based ◽  
Cad Models ◽  
Feature Based

Reverse engineering (RE) is the process of defining and instantiating a model based on the measurements taken from an exemplar object. Traditional RE is costly, requiring extensive time from a domain expert using calipers and/or coordinate measurement machines to create new design drawings/CAD models. Increasingly RE is becoming more automated via the use of mechanized sensing devices and general purpose surface fitting software. This work demonstrates the ability to reverse-engineer parts by combining feature-based techniques with freeform surface fitting to produce more accurate and appropriate CAD models than previously possible.

Research Based on Reverse Engineering Technology of Complex Structure Product

2015 ◽  
Vol 741 ◽  
pp. 806-809
Author(s):  
Ai Qin Lin ◽  
Yong Xi He
Keyword(s):  
Reverse Engineering ◽  
Point Cloud ◽  
Complex Structure ◽  
Laser Scanner ◽  
Complex Surface ◽  
Curved Surface ◽  
Quality Model ◽  
High Quality ◽  
Engineering Technology ◽  
Working Principle

Introduced reverse engineering technology and working principle. Researched reverse design process of the complex curved surface "spider". The data were collected by means of multiple scanning measuring with laser scanner. Used Geomagic Studio software for date point cloud processed of complex curved surface. Used UG software for surface reconstruction designed. Product reduction and improvement of the design were finished rapidly and high quality. Model of spider was printed with rapid prototyping technology. Compared with physical, the model’s reliability and accuracy were verified by reverse engineering design.Keywords: complex surface; reverse engineering technology; UG; Geomagic Studio software

Computation and Simulation of 5-Axis Cutter Based on Scattered Point Cloud Data

2012 ◽  
Vol 602-604 ◽  
pp. 1740-1743
Author(s):  
Wen Hui Zhao ◽  
She Liu
Keyword(s):  
Reverse Engineering ◽  
Distance Function ◽  
Point Cloud ◽  
Complex Surface ◽  
Conjugate Problem ◽  
Local Feature ◽  
Conjugate Points ◽  
B Spline ◽  
Cloud Data ◽  
Cad Cam

The complex surface is modeled by triangular surface, B-spline or non-uniform rational B-spline first and then the planing of the cutter is followed in reverse engineering. But this require CAD/CAM software and operator’s experiene. Because of this，the research on direct NC cutter generation from point cloud have become the focus of research in reverse engineering. The normal，curvature，surface vary et al parameters are calculated by principle component analysis method and so on, which define the local feature of the surface hidden in the point cloud. Then，based on local feature，point cloud is simplified. It is proved that two points with minimal orientation-distance on a pair of smooth surfaces are conjugate points. Thus the conjugate problem between the tool surface and the part surface is converted into optimization process of orientation-distance function. The cutter trace and the cutter interference are achieved by local and global optization of the orientation-distance function.

Methods of Skull Implants Modeling with Use of CAx and Haptic Systems

2015 ◽  
pp. 119-139
Author(s):  
Marek Wyleżoł
Keyword(s):  
Reverse Engineering ◽  
Surface Modeling ◽  
Engineering System ◽  
Virtual Model ◽  
Synergy Effect ◽  
Model Quality ◽  
Modeling Methods ◽  
Modeling Systems ◽  
Characteristic Modeling ◽  
Methods And Techniques

This chapter deals with four exemplary methods of virtual skull implants modeling. These methods combine simultaneous usage of three modeling systems: reverse engineering system, surface modeling system, and haptic modeling system, and their characteristic modeling methods and techniques. Using three different modeling systems, the authors obtain a synergy effect of the implant shape and model quality increasing. The target virtual model of the implant is always well suited to the coastline of bone lack in the skull. Additionally, time of the virtual model developed is very short compared to use of only one of the standard engineering CAx systems. The chapter describes four original methods developed by the author.

Feature-Based Reverse Engineering of Mechanical Parts. Revision

1995 ◽  
Author(s):  
William B. Thompson ◽  
Jonathan C. Owen ◽  
H. J. De St. Germain
Keyword(s):  
Reverse Engineering ◽  
Mechanical Parts ◽  
Feature Based
Sign in / Sign up

Export Citation Format

Share Document