Research on Reconstruction 3D CAD Data of Automotive Panel Based on Reverse Engineering

2011 ◽  
Vol 328-330 ◽  
pp. 159-162 ◽  
Author(s):  
Xiang Hui Zhan ◽  
Xiao Da Li ◽  
Xiang Yang Liu
Keyword(s):  
Reverse Engineering ◽  
Point Cloud ◽  
Laser Scanner ◽  
Characteristic Line ◽  
Practical Case ◽  
Quality Model ◽  
Effective Technique ◽  
3D Cad ◽  
Key Techniques ◽  
Automotive Panel

The processes and methods of reverse engineering are presented in detail through a practical case in this paper. Point cloud acquisition, data processing and model reconstruction are the key techniques in reverse engineering. The sample’s point cloud acquired by laser scanner is processed in Geomagic, and the boundary and characteristic line are extracted simultaneity. Finally, the surfaces are constructed and modified, and the CAD model is reconstructed in NX. The research indicates that the reconstruction data by reverse engineering is an effective technique, which can bring about high quality model and improve efficiency.

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

Surface Design of Molding Tool for Composite Component Based on Reverse Engineering

2012 ◽  
Vol 503-504 ◽  
pp. 215-218 ◽  
Author(s):  
Da Wei Wu ◽  
Xiao Fei Ding ◽  
Gang Tong
Keyword(s):  
Reverse Engineering ◽  
Point Cloud ◽  
Laser Scanner ◽  
Surface Fitting ◽  
Point Cloud Data ◽  
Composite Component ◽  
Cross Sectional ◽  
Surface Design ◽  
Cloud Data ◽  
Molding Tool

This paper analyzes the structure of molding tool for composite component, and proposes a method of surface design of molding tool based on reverse engineering. By using handy laser scanner, the point cloud data is obtained from the composite component, which is processed in Geomagic Studio. Then the processed data is imported into CATIA for Surface fitting. The surface of molding tool for composite component is rapidly and accurately designed by analyzing 3D error and comparing cross-sectional data.

Surface Reconstruction Based on the 3D Laser Scanner

2012 ◽  
Vol 215-216 ◽  
pp. 656-659
Author(s):  
Le Yang Chen
Keyword(s):  
Reverse Engineering ◽  
Surface Reconstruction ◽  
Point Cloud ◽  
Laser Scanning ◽  
Laser Scanner ◽  
3D Laser Scanning ◽  
Cloud Processing ◽  
Point Cloud Processing ◽  
Key Technologies ◽  
Rapid Scanning

3D laser scanning is one of the key technologies of reverse engineering. Digital point cloud is produced by the rapid scanning technology. Some technology about reverse engineering is introduced in this thesis. The curved surface can be generated by the point cloud processing, when the point cloud can be processed by the software called Geomagic Studio.

scholarly journals Outside In

2009 ◽  
Vol 131 (08) ◽  
pp. 38-41
Author(s):  
Jean Thilmany
Keyword(s):  
Reverse Engineering ◽  
Computer Aided Design ◽  
Laser Scanner ◽  
Coordinate Measuring Machine ◽  
Physical Object ◽  
3D Cad ◽  
Engineering Software ◽  
Design Engineers ◽  
Computer Aided ◽  
Measuring Machine

This article discusses reverse engineering software is slowly changing the way design engineers do their everyday jobs. With the pervasiveness of computer-aided design packages, reverse engineering technology has become a practical tool to create a 3D virtual model of an existing physical part. This model is then available to be used in 3D CAD, computer-aided manufacturing, or other computer-aided engineering applications. The reverse engineering process needs hardware and software that work together. The hardware is used to measure an object, and the software reconstructs it as a 3D model. The physical object can be measured using 3D scanning technologies such as a coordinate measuring machine, laser scanner, structured light digitizer, or computed tomography. The wider accessibility of handheld-laser scanners and portable CMMs like the one used at Excel Foundry means more companies can afford reverse engineering for their own unique ends. The scanner has turned out to be equally useful for engineering and for local archeological and preservation projects; and so far, it has been used to help preserve endangered artifacts.

Reverse Engineering of Artwork Teacup

2012 ◽  
Vol 490-495 ◽  
pp. 2906-2910
Author(s):  
Jun Feng ◽  
Bo Jiang
Keyword(s):  
Rapid Prototyping ◽  
Reverse Engineering ◽  
Point Cloud ◽  
Three Dimensional ◽  
Laser Scanner

Through the three-dimensional laser scanner (Non-Contact 3D Digitizer), the outline point cloud of the teacup can be obtained, and the reverse engineering such as cutting, aligning, combining, etc. is conducted to the point cloud in the software of RANGE VIEWER and RapidForm XOR, to achieve the three-dimensional diagram, which can be imported to the rapid prototyping machine, to process the teacup sample and complete the reverse engineering of teacup imitation.

Application of Reverse Engineering Technology Based on Linear Scanning on Food Packaging

2013 ◽  
Vol 437 ◽  
pp. 941-944
Author(s):  
Chun Sheng Tao
Keyword(s):  
Reverse Engineering ◽  
Point Cloud ◽  
Food Packaging ◽  
Point Cloud Data ◽  
Quality Model ◽  
High Quality ◽  
Engineering Technology ◽  
Cloud Data ◽  
Processing Data ◽  
Linear Scanning

The concept, processes and research status of reverse engineering are introduced. The application of reverse engineering technology on food packaging is illustrated by introducing the process of rebuilding a model for a biscuit box, including acquiring point cloud data of the biscuit box, processing data and materializing model. The results show that a high quality model of sample can be rebuild by reverser engineering. It is a effective method in innovation design on food packaging by reverser engineering technology.

Research on Reverse Engineering for Blades of Axial Compressors with Laser Scanner

2013 ◽  
Vol 774-776 ◽  
pp. 185-189
Author(s):  
Wei Song ◽  
Xi De Lai ◽  
Guang Fu Li ◽  
Wei Zhang ◽  
Xiao Ming Chen ◽  
...  
Keyword(s):  
Reverse Engineering ◽  
Point Cloud ◽  
Optimization Design ◽  
Laser Scanner ◽  
Axial Compressor ◽  
Surface Model ◽  
Point Cloud Data ◽  
Aerodynamic Optimization ◽  
Cloud Data ◽  
Axial Compressors

To acquire the digital model of axial compressors on the actual projects, a Reverse Engineering procedure of the blade was developed based on point cloud data acquired with the handy laser scanner. For meeting the requirements of geometric characteristics and aerodynamic optimization design and improving acquiring efficiency of point cloud data, the laser triangulation was employed and auxiliary plane and mark points were put on the inlet, outlet and tip of the blade. For solving the problem of low accuracy of fitting surface on the blade, an interactive dividing method of surface slices which based on the streamline, meridian line, contour and its extension line, was presented, it showed that reconstructed surface model can meet the actual projects needs. A completed set of RE technology for axial compressor blades has been developed, and it has been used in actual project combing with the maintenance of a large axial compressor blade.

Handheld Laser Scanner Research

2019 ◽  
Vol 952 (10) ◽  
pp. 47-54
Author(s):  
A.V. Komissarov ◽  
A.V. Remizov ◽  
M.M. Shlyakhova ◽  
K.K. Yambaev
Keyword(s):  
Point Cloud ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Test Site ◽  
Optical Systems ◽  
Advantages And Disadvantages ◽  
Site Survey ◽  
Laser Scanners ◽  
Three Dimensional Models ◽  
The Stability

The authors consider hand-held laser scanners, as a new photogrammetric tool for obtaining three-dimensional models of objects. The principle of their work and the newest optical systems based on various sensors measuring the depth of space are described in detail. The method of simultaneous navigation and mapping (SLAM) used for combining single scans into point cloud is outlined. The formulated tasks and methods for performing studies of the DotProduct (USA) hand-held laser scanner DPI?8X based on a test site survey are presented. The accuracy requirements for determining the coordinates of polygon points are given. The essence of the performed experimental research of the DPI?8X scanner is described, including scanning of a test object at various scanner distances, shooting a test polygon from various scanner positions and building point cloud, repeatedly shooting the same area of the polygon to check the stability of the scanner. The data on the assessment of accuracy and analysis of research results are given. Fields of applying hand-held laser scanners, their advantages and disadvantages are identified.

scholarly journals Fitting Terrestrial Laser Scanner Point Clouds with T-Splines: Local Refinement Strategy for Rigid Body Motion

2021 ◽  
Vol 13 (13) ◽  
pp. 2494
Author(s):  
Gaël Kermarrec ◽  
Niklas Schild ◽  
Jan Hartmann
Keyword(s):  
Point Cloud ◽  
Goodness Of Fit ◽  
Laser Scanner ◽  
Point Clouds ◽  
Statistical Testing ◽  
Computational Time ◽  
Terrestrial Laser Scanner ◽  
Reference Surface ◽  
Local Refinement ◽  
Surface Approximation

T-splines have recently been introduced to represent objects of arbitrary shapes using a smaller number of control points than the conventional non-uniform rational B-splines (NURBS) or B-spline representatizons in computer-aided design, computer graphics and reverse engineering. They are flexible in representing complex surface shapes and economic in terms of parameters as they enable local refinement. This property is a great advantage when dense, scattered and noisy point clouds are approximated using least squares fitting, such as those from a terrestrial laser scanner (TLS). Unfortunately, when it comes to assessing the goodness of fit of the surface approximation with a real dataset, only a noisy point cloud can be approximated: (i) a low root mean squared error (RMSE) can be linked with an overfitting, i.e., a fitting of the noise, and should be correspondingly avoided, and (ii) a high RMSE is synonymous with a lack of details. To address the challenge of judging the approximation, the reference surface should be entirely known: this can be solved by printing a mathematically defined T-splines reference surface in three dimensions (3D) and modeling the artefacts induced by the 3D printing. Once scanned under different configurations, it is possible to assess the goodness of fit of the approximation for a noisy and potentially gappy point cloud and compare it with the traditional but less flexible NURBS. The advantages of T-splines local refinement open the door for further applications within a geodetic context such as rigorous statistical testing of deformation. Two different scans from a slightly deformed object were approximated; we found that more than 40% of the computational time could be saved without affecting the goodness of fit of the surface approximation by using the same mesh for the two epochs.

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