Intrinsically Defined Planar Curves based on Explicit B-spline Curvature Functions
Norimasa Yoshida and Takafumi Saito | 51-55 | doi: 10.14733/cadconfP.2021.51-55 | PDF (855K)

A Predictor-Corrector Type Incremental Algorithm for Weighted Straight Skeletons
Baris Irhan | 56-60 | doi: 10.14733/cadconfP.2021.56-60 | PDF (524K)

Choice of CAD Model Adaptation Process for Virtual Reality using Classification Techniques
Florence Danglade and Christophe Guillet | 61-65 | doi: 10.14733/cadconfP.2021.61-65 | PDF (537K)

Island Scanning Path-Patten Optimization for Residual Distortion Control in Metal Additive Manufacturing
Shuzhi Xu, Jiaqi Huang, Jikai Liu and Yongsheng Ma | 66-72 | doi: 10.14733/cadconfP.2021.66-72 | PDF (817K)

Uniqueness Theorem on the Shape of Free-form Curves Defined by Three Control Points
Kenjiro T. Miura, Dan Wang, R.U. Gobithaasan, Tadatoshi Sekine and Shin Usuki | 73-77 | doi: 10.14733/cadconfP.2021.73-77 | PDF (360K)

Surface Segmentation based on Concave Region and Flattenability
Rui Li and Qingjin Peng | 78-82 | doi: 10.14733/cadconfP.2021.78-82 | PDF (372K)

Interior Ball-Pivoting on Point Clouds for Offsetting Triangular Meshes
Tathagata Chakraborty | 83-87 | doi: 10.14733/cadconfP.2021.83-87 | PDF (644K)

Visualization of 3+2 Axis Milling Result by Combining Multiple Z-map Models
Qi Chen and Masatomo Inui | 88-92 | doi: 10.14733/cadconfP.2021.88-92 | PDF (481K)

Rendering DICOM Data with B-spline Surfaces
Les A. Piegl and William L. Mondy | 93-97 | doi: 10.14733/cadconfP.2021.93-97 | PDF (301K)

Hybrid Line-Arc Toolpath Machining with Corner Transition and Grouping Lookahead Scheme
Hongyu Ma, Chun-Ming Yuan, Li-Yong Shen, Fengming Lin and Lixian Zhang | 98-102 | doi: 10.14733/cadconfP.2021.98-102 | PDF (955K)

Application of 360-degree Video to Extend the Capability of Conventional Behavioral Mapping Method to Resolve the Recurrent Congestion in Taipei Metro Transit Stations
Chatsarun Aruntanavong and Nan-Ching Tai | 103-107 | doi: 10.14733/cadconfP.2021.104-107 | PDF (481K)

Applications Virtually Augmenting Real Experiences for Behavioral Change
Marina Carulli, Monica Bordegoni and Elena Spadoni | 108-112 | doi: 10.14733/cadconfP.2021.108-112 | PDF (248K)

Product Innovation based on Technology Recombination
Limeng Liu, Runhua Tan, Qingjin Peng, Jinpu Zhang, Boyuan Zhao and Xiangdong Li | 113-117 | doi: 10.14733/cadconfP.2021.113-117 | PDF (799K)

Efficient Bolus Shaping for Cancer Care
Zohreh Sohrabi Ghareh Tappeh and Qingjin Peng | 118-122 | doi: 10.14733/cadconfP.2021.118-122 | PDF (560K)

A Semi-Automatic CAD Procedure to Design Custom-made Surgical Cutting Guides
Lorenzo Guariento, Francesco Buonamici, Antonio Marzola, Rocco Furferi and Yary Volpe | 123-127 | doi: 10.14733/cadconfP.2021.123-127 | PDF (266K)

Path Planning for Product Function Transformation based on Kruskal Algorithm
Jinpu Zhang, Guozhong Cao, Qingjin Peng, Runhua Tan and Huangao Zhang | 128-133 | doi: 10.14733/cadconfP.2021.128-133 | PDF (408K)

Slice Interpolation for Medical Image based on Spatial Geometry Polynomial Fitting
Hui Liu, Yuxiu Lin, Shanshan Li and Caiming Zhang | 134-138 | doi: 10.14733/cadconfP.2021.134-138 | PDF (1325K)

Automatic Parts Classification to Enhance the Semantics of the CAD Assembly Models
Brigida Bonino, Franca Giannini, Marina Monti and Roberto Raffaeli | 139-143 | doi: 10.14733/cadconfP.2021.139-143 | PDF (504K)

Fitting Single Crease Curved-Fold Model to the User Specified Points
Yuka Watanabe and Jun Mitani | 144-148 | doi: 10.14733/cadconfP.2021.142-146 | PDF (513K)

Improving the Learning Experience within MCAD Education: A Tool for Students to Assist in Self-Assessment during Modeling Exercises
Ferruccio Mandorli and Harald E. Otto | 149-153 | doi: 10.14733/cadconfP.2021.149-153 | PDF (387K)

Novel Lightweight Lattice Structure Generation Methods for Additive Manufacturing
Wenlei Xiao, Changri Xiong, Zhiming Wang, Zaisheng Lin, Shiping Wang, Wei Wei and Gang Zhao | 154-159 | doi: 10.14733/cadconfP.2021.154-159 | PDF (566K)

Small Visible Defect Detection based on Small Sample Analysis
Zhichao Sun and Xiangzhi Wei | 160-164 | doi: 10.14733/cadconfP.2021.160-164 | PDF (408K)

Improvement of Technological Innovation of SMEs Using Patent Knowledge
Chuan He, Runhua Tan, Qingjin Peng, Fan Shi, Peng Shao and Xiangdong Li | 165-170 | doi: 10.14733/cadconfP.2021.165-170 | PDF (272K)

STEP-NC Feature based Cutting Tool Recommendation System
Kang Cheng, Yazui Liu, Wenlei Xiao, Wei Wang and Gang Zhao | 171-176 | doi: 10.14733/cadconfP.2021.171-176 | PDF (467K)

GPU-Accelerated Post-Processing and Animated Volume Rendering of Isogeometric Analysis Results
Harshil Shah, Xin Huang, Onur Rauf Bingol, Manoj R. Rajanna and Adarsh Krishnamurthy | 177-181 | doi: 10.14733/cadconfP.2021.177-181 | PDF (258K)

Analysis of the Requirements of a Framework for the Hybrid Manufacturing of Large Parts
Jacopo Lettori, Roberto Raffaeli, Margherita Peruzzini and Marcello Pellicciari | 182-186 | doi: 10.14733/cadconfP.2021.182-186 | PDF (165K)

Trajectory Planning of Rehabilitation Exercises using an Integrated Reward Function in Reinforcement Learning
Yanlin Shi, Qingjin Peng and Jian Zhang | 187-191 | doi: 10.14733/cadconfP.2021.187-191 | PDF (320K)

Quantitative Characterization of Warpage for Composite Components
Eric J. Martin, O. Remus Tutunea-Fatan, Ryan Gergely and David A. Okonski | 192-197 | doi: 10.14733/cadconfP.2021.192-197 | PDF (306K)

Comparative Study of 3D Reconstruction Methods for Medical Imaging
L. Lechelek, S. Gerbaud, R. Zrour, M. Naudin, C. Guillevin and S. Horna | 198-202 | doi: 10.14733/cadconfP.2021.198-202 | PDF (212K)

Personalized Agile Innovation Process Model Based on CAD
Peng Zhang, Hongxiang Wang and Zifeng Nie | 203-207 | doi: 10.14733/cadconfP.2021.203-207 | PDF (400K)

Using Product Design Approaches with Computer-Aided Design to Enhance STEM Education
Chi Yin Wong and Yi Teng Shih | 208-212 | doi: 10.14733/cadconfP.2021.208-212 | PDF (114K)

CAD/CAM Framework for Parametric Design and Fabrication of V-Groove-Based Functional Surfaces
Jonas Churchill-Baird, O. Remus Tutunea-Fatan and Evgueni V. Bordatchev | 213-217 | doi: 10.14733/cadconfP.2021.213-217 | PDF (391K)

Segmentation of Plant-part from 3D Point Cloud Using Deep Learning and Multi-view Vision
Yibin Lai, Shenglian Lu, Tingting Qian, Ming Chen, Zhen Song and Guo Li | 218-222 | doi: 10.14733/cadconfP.2021.218-222 | PDF (202K)

MidcurveNN: Neural Network for Computing Midcurve of a Thin Polygon
Yogesh H. Kulkarni | 223-225 | doi: 10.14733/cadconfP.2021.223-225 | PDF (220K)

Product Radical Innovation based on Global Idealization
Yafan Dong, Runhua Tan, Qingjin Peng, Yunpeng Su, Fei Yu and Xiangdong Li | 226-230 | doi: 10.14733/cadconfP.2021.226-230 | PDF (391K)

Leveraging Advanced Design and Novel Rapid Manufacturing Solutions to Respond to the COVID19 Pandemic
Alireza Pasha, Jill Urbanic, Bob Hedrick, Hamoon Ramezani and Ofelia Jianu | 231-235 | doi: 10.14733/cadconfP.2021.231-235 | PDF (372K)

Approximating Triangular Meshes by Implicit, Multi-Sided Surfaces
Ágoston Sipos, Tamás Várady and Péter Salvi | 236-240 | doi: 10.14733/cadconfP.2021.236-240 | PDF (244K)

A Unified Approach for Airfoil Parameterization Using Bezier Curves
Dheeraj Agarwal and Prateek Sahu | 241-245 | doi: 10.14733/cadconfP.2021.241-245 | PDF (384K)

Segmentation Strategy and 3D Printing of a Patient-specific Heart Model
Michele Bertolini, Marco Rossoni and Giorgio Colombo | 246-250 | doi: 10.14733/cadconfP.2021.246-250 | PDF (131K)

Exoskeleton for Post-Stroke Hand Rehabilitation
Aron Grandi, Arun Prakash Karthikeyan, Elimar Vieira Vaz Junior and Mario Covarrubias Rodriguez | 251-255 | doi: 10.14733/cadconfP.2021.251-255 | PDF (139K)

The Issue of Virtual Reality in Industrial Design: a Discussion on Its Adoption and New Possible Approaches
Marcello Lorusso, Marco Rossoni, Monica Bordegoni, Giorgio Colombo and Marina Carulli | 256-260 | doi: 10.14733/cadconfP.2021.256-260 | PDF (122K)

3D Modelling of the Knee Driven by Total Knee Arthroplasty Strategies
Anna Ghidotti, Andrea Vitali, Daniele Regazzoni and Caterina Rizzi | 261-266 | doi: 10.14733/cadconfP.2021.261-266 | PDF (379K)

A Computer-aided Approach for Acquisition and Importance Ranking of Customer Requirements from the Online Comment Mining
Li Xiangdong, He Youlong, Peng Qinjin and Liu Wei | 267-271 | doi: 10.14733/cadconfP.2021.267-271 | PDF (291K)

Grid Shape Descriptor using Path Integrals for Measuring Sheet Metal Parts Similarity
Mikko Ylihärsilä and Juha Hirvonen | 272-276 | doi: 10.14733/cadconfP.2021.272-276 | PDF (448K)

Design and Development of Longitudinal and Torsional Ultrasonic Vibration-assisted Needle Insertion Device for Medical Applications
Yi Wang, Yi Cai and Yuan-Shin Lee | 277-282 | doi: 10.14733/cadconfP.2021.277-282 | PDF (455K)

Modeling Coverage Areas of Anisotropic Transmitters by Voronoi-like Structures
Martin Held and Peter Palfrader | 283-287 | doi: 10.14733/cadconfP.2021.283-287 | PDF (228K)

Data Augmentation of Classifiers for Components in Industrial Plants Using CAD Models
Kohei Shigeta, Daiki Hanai and Hiroshi Masuda | 288-292 | doi: 10.14733/cadconfP.2021.288-292 | PDF (408K)

Residual Stress Modelling of Junction Structures using Powder Injection Laser Cladding of Martensitic Stainless Steel on low Alloyed Carbon Steel Substrate
Bita Mohajernia and Jill Urbanic | 293-297 | doi: 10.14733/cadconfP.2021.293-297 | PDF (657K)

Application of the Generative Engineering Design in View of Solid or Surface Modelling
Jana Gulanová, Matúš Margetin and Andrej Chríbik | 298-302 | doi: 10.14733/cadconfP.2021.298-302 | PDF (287K)

Haptic Feedback Glove for Arm Rehabilitation
Natalia Rodriguez, Matteo Sangalli, Monika D. Smukowska and Mario Covarrubias | 303-307 | doi: 10.14733/cadconfP.2021.303-307 | PDF (264K)

Real-Time NC Simulation with Instantaneous and Localized Cutting Force Prediction
Randy Chang, Si-Yuan Wang and Hong-Tzong Yau | 308-313 | doi: 10.14733/cadconfP.2021.308-313 | PDF (657K)

L₀-Regularization based Material Design for Hexahedral Mesh Models
Haoxiang Li and Jianmin Zheng | 314-318 | doi: 10.14733/cadconfP.2021.314-318 | PDF (904K)

labelCloud: A Lightweight Domain-Independent Labeling Tool for 3D Object Detection in Point Clouds
Christoph Sager, Patrick Zschech and Niklas Kühl | 319-323 | doi: 10.14733/cadconfP.2021.319-323 | PDF (267K)

Benchmarking of 3D Modelling in Virtual Reality
Thi Thanh Hoa Tran, Gilles Foucault and Romain Pinquié | 324-328 | doi: 10.14733/cadconfP.2021.324-328 | PDF (195K)

Interactive G¹ and G² Hermite Interpolation Using Coupled Log-aesthetic curves
Ferenc Nagy, Norimasa Yoshida and Miklós Hoffmann | 329-333 | doi: 10.14733/cadconfP.2021.329-333 | PDF (356K)

We Don’t Really Need Quaternions in Geometric Modeling, Computer Graphics and Animation. Here Is Why
Fuhua (Frank) Cheng, T. Lee Johnson, Anastasia Kazadi, Ethan G. Toney, Jonathan I. Watson and Alice J. Lin | 334-338 | doi: 10.14733/cadconfP.2021.334-338 | PDF (224K)

Capturing and Sharing Design Rationale for Customized Design Variants in an Integrated Design Environment
Morteza Poorkiany, Joel Johansson and Fredrik ELgh | 339-343 | doi: 10.14733/cadconfP.2021.339-343 | PDF (387K)

Aesthetic Design Based on the Analysis of Questionnaire Results Using Deep Learning Techniques
Masakazu Kobayashi and Suguru Fujita | 344-348 | doi: 10.14733/cadconfP.2021.344-348 | PDF (197K)

A Parking Pose and Trajectory Selection Algorithm Based on Artificial Potential Field and Particle Swarm Optimization
Wei Huang, Xiangzhi Wei, Jiaye Zhu and Kaining Dai | 349-353 | doi: 10.14733/cadconfP.2021.349-353 | PDF (392K)

Introduction of Abstract Sketch Features for Automatic Converting Sketches into 3D Models
Masaji Tanaka, Chiharu Higashino and Tetsuya Asano | 354-358 | doi: 10.14733/cadconfP.2021.354-358 | PDF (186K)

Next Generation BIM From Point Clouds in Julia
Maria Teresa Graziano, Michele Vicentino, Alberto Paoluzzi and Antonio Bottaro | 359-363 | doi: 10.14733/cadconfP.2021.359-363 | PDF (1796K)

A Characterization of 3D Printability
Ioannis Fudos, Margarita Ntousia, Vasiliki Stamati, Paschalis Charalampous, Theodora Kontodina, Ioannis Kostavelis, Dimitrios Tzovaras and Leonardo Bilalis | 363-367 | doi: 10.14733/cadconfP.2020.363-367 | PDF (134K)

Direct Generation of Cartesian Grid for As-built CFD Analysis from Laser Scanned Point Clouds
Tetsuro Ishikawa, Satoshi Kanai and Hiroaki Date | 368-373 | doi: 10.14733/cadconfP.2020.368-373 | PDF (585K)

A New Adaptive Slicing Algorithm Based on Slice Contour Reconstruction in Layered Manufacturing Process
Suyun Liu, Ajay Joneja and Kai Tang | 374-380 | doi: 10.14733/cadconfP.2020.374-380 | PDF (993K)

Deep Learning-based Automatic Damage Recognition and Spatial Localization for Remanufacturing/Repair
Yufan Zheng, Harshavardhan Mamledesai, Habiba Imam and Rafiq Ahmad | 381-385 | doi: 10.14733/cadconfP.2020.381-385 | PDF (477K)

An Automated Intelligent Feature-based Maintenance Plan Generation Method
Pedro Yepez, Yufan Zheng, Basel Alsayyed and Rafiq Ahmad | 386-390 | doi: 10.14733/cadconfP.2020.386-390 | PDF (266K)

Isometric Conversion of Mechanical Sketches into 3D Models
Masaji Tanaka, Motoki Terano, Chiharu Higashino and Tetsuya Asano | 391-394 | doi: 10.14733/cadconfP.2020.391-394 | PDF (205K)

Factors Influencing the Integration of Product and Service Design in Product-Service System Development
Elaheh Maleki, Marie-Anne Le Dain, Lilia Gzara, Farouk Belkadi and Alain Bernard | 395-400 | doi: 10.14733/cadconfP.2020.395-400 | PDF (134K)

Estimation of Surface Stresses on Voxel Meshes by FEA and Neuronal Nets in 2D Plane Stress Models
Franz Jungreitmayr | 401-405 | doi: 10.14733/cadconfP.2020.401-405 | PDF (140K)

CAD in the Arts 1

Folding Agent: Parameter Visualization In 2D-to-3D Pattern Transformation
Chiung-Hui Chen | PDF (462K)

The Kandinsky Experience: A Multisensory AR Application For Cultural Heritage
Sara Belloli, Sara Porro, Vikram Singh Virk, Roberta Etzi, Alberto Gallace, Monica Bordegoni and Marina Carulli | PDF (961K) | Video

Raising Awareness about the Consequences of Human Activities on Natural Environments Through a Multisensory AR Experience
Federico Gardoni, Fabio Mojetta, Chiara Sorrentino, Roberta Etzi, Alberto Gallace, Monica Bordegoni and Marina Carulli | PDF (1866K) | Video

CAD Education 1

Helps: A Domain-Specific Lexicon For CAD Peer Review
Zachariah Beasley and Les A. Piegl | PDF (456K)

Training Engineers in the Use of Constraints to Create Quality 2D Profiles for 3D Models
Raquel Plumed, Carmen González-Lluch, Jeffrey M. Otey and Victoria Pérez-Belis | PPTX (20175K)

Parametric Feature Based Solid Model Deficiency Identification to Support Learning Outcomes Assessment in CAD Education
Ferruccio Mandorli and Harald E. Otto | PDF (606K)

Bio-engineering

Autologous Ear Reconstruction: Towards A Semiautomatic CAD-Based Procedure For 3D Printable Surgical Guides
Flavio Facchini, Antonino Morabito, Francesco Buonamici, Elisa Mussi, Michaela Servi and Yary Volpe | PPTX (44256K)

Algebraic Filtering of Surfaces From 3D Medical Images with Julia
Miroslav Jirik and Alberto Paoluzzi | PDF (4048K)

Geometric Modeling 1

Maintaining the Spatial Proximities of Objects Under Motion
Zesheng Jia, Anjali Jose, Subhasree Methirumangalath, Jiju Peethambaran and Ramanathan Muthuganapathy | PDF (858K)

Interpolation of Point Sequences with Extremum of Curvature by Log-Aesthetic Curves with G² Continuity
Dan Wang, R. U. Gobithaasan, Tadatoshi Sekine, Shin Usuki and Kenjiro T. Miura | PDF (1459K)

Generative Design: An Explorative Study
Francesco Buonamici, Monica Carfagni, Rocco Furferi, Yary Volpe and Lapo Governi | PPTX (28791K)

Conceptual/collaborative/feature-based Design 1

Conceptual Modeling in Product Design Within Virtual Reality Environments: Interaction and Geometry Representation
Marcello Lorusso, Giorgio Colombo and Marco Rossoni | PDF (1928K) | Video

A Constraint-Based Framework to Recognize Design Intent During Sketching in Parametric Modeling Environments
Sofia Kyratzi and Philip Azariadis | PDF (721K)

Function Combination of Product Reconfiguration based on Scenario Analysis
Limeng Liu, Runhua Tan, Qingjin Peng, Wei Liu, Huangao Zhang and Jinpu Zhang | PDF (1177K)

Feature-based Design 1

Isometric Conversion of Mechanical Sketches Into 3D Models
Masaji Tanaka, Motoki Terano, Chiharu Higashino and Tetsuya Asano | PDF (709K)

Design Analysis and Modification of Ribs and Tubes on Thin-Wall Parts for Mold Flow Analysis
Jiing-Yih Lai, Zhong-Wei Zhang, Pei-Pu Song, Chia-Hsiang Hsu and Yao-Chen Tsai | PDF (1948K)

Product Data Management 1

Cognitive Reliability and Error Analysis Based On Anticipatory Failure Determination
Zhonghang Bai, Muzi Chang, Qingjin Peng and Bo Xu | PDF (864K)

CAD-Automation In Automotive Development – Potentials, Limits and Challenges
Alexander Kreis, Mario Hirz and Patrick Rossbacher | PDF (936K)

Product Recommendation Based on Analysis of Aesthetic Elements Used to Customer’s Favorite Products
Masakazu Kobayashi and Tomoki Takeda | PPTX (28144K)

Machining 1

Step-NC-Compliant High Efficient Machining Simulation
Xian Cao, Wenlei Xiao and Gang Zhao | PDF (2315K)

Framework For Determination of Surface Topography Generated Through Elliptical Vibration Assisted Single Point Cutting
Nikolai Farrus, O. Remus Tutunea-Fatan and Evgueni Bordatchev | PDF (2024K)

Comparison of Different Two-Equation Turbulence Models for Dynamic Effect in Hvof Thermal Spray Process Modeling
Jiangzhuo Ren, Yiming Rong and Yongsheng Ma | PDF (1939K)

RE/RP/AM 1

A New Adaptive Slicing Algorithm Based On Slice Contour Reconstruction In Layered Manufacturing Process
Suyun Liu, Ajay Joneja and Kai Tang | PDF (1524K)

An Automated Intelligent Feature-Based Maintenance Plan Generation Method
Pedrp Yepez, Yufan Zheng, Basel Alsayyed and Rafiq Ahmad | PDF (1727K)

Augmented and Virtual Reality 1

Augmented Reality For CAD/CAM Training Featuring 3D Interactive Geometric Transformations
Angelos Marinakis, Katerina Mania and Aristomenis Antoniadis | PDF (1383K)

User Studies in Laboratory Driving Simulations
Yuan Shi, Monica Bordegoni and Giandomenico Caruso | PDF (1405K) | Video

Validating HMI Design for Increasing User’s Trust in Autonomous Vehicle
Yuan Shi, Nicolò Azzolin, Andrea Picardi, Tao Zhu, Monica Bordegoni and Giandomenico Caruso | PDF (1175K) | Video

Conceptual/collaborative/feature-based Design 2

The Cost of Change In Parametric Modeling: A Roadmap
Jorge Camba, Manuel Contero, Pedro Company and Nathan Hartman | PDF (309K)

Function Model Based Generation of CAD Model Variants
Jakob Ramon Müller, Massimo Panarotto and Ola Isaksson | PDF (1326K)

Parametric Surface-Based Modelling: A Review of Modelling Strategies and Identification of Future Research
Aritz Aranburu, Daniel Justel and Ivan Angulo | PDF (262K)

CAD Education 2

Exploring the Role of CAD in the Conceptual Design Phase
Yi Teng Shih and Willy Sher | PDF (887K)

CAD Teaching and Learning Through Team Projects: Addressing Future Trends in The Product Development
Jana Gulanová, Štefan Dunaj, Ladislav Gulan and Adam Vincze | PDF (1940K)

Meshes and Finite Elements 1

Direct Generation of Cartesian Grid For As-Built CFD Analysis from Laser Scanned Point Clouds
Tetsuro Ishikawa, Satoshi Kanai and Hiroaki Date | PDF (3041K)

Shape Descriptor-Based Similar Feature Extraction for Finite Element Meshing
Hideyoshi Takashima and Satoshi Kanai | PDF (2294K)

Estimation of Surface Stresses on Voxel Meshes by Direct FEA and Neuronal Nets Demonstrated on 2D Plane Stress Models
Franz Jungreitmayr | PDF (2099K)

Machining 2

Sample-and-Cover: A Brute-Force Approach to Continuous B-Axis Turning Toolpath Computation
Tathagata Chakraborty, Hariharan Krishnamurthy and Manoj Bhonge | PPTX (49129K)

Fast Dexelization of Polyhedral Models Using Ray-Tracing Cores of GPU
Masatomo Inui, Kohei Kaba and Nobuyuki Umezu | PDF (958K)

Ramp Approach Parameter Correction Method For 3-Axis Web Machining
Min Zhou, Kang Zhou, Guolei Zheng and Tengfei Li | PDF (1260K)

CAD in the Arts 2

Analyzing the Geometric Distortions in a Chinese Scholar Garden in The Lin Family Mansion and Garden Using Computer-Simulated Projections
Nan-Ching Tai | PDF (1909K)

Developing Diagram-Based Computation for Algorithmic Modeling of Parametric Architectural Design
Chieh-Jen Lin | PDF (351K)

RE/RP/AM 2

Extraction and Recognition of Components from Point Clouds of Industrial Plants
Kohei Shigeta and Hiroshi Masuda | PDF (2576K)

On Reduction of Data Redundancy in STL File by Generating Higher Order Polygons
Mayur Vispute, Narendra Kumar and Prashant K. Jain | PDF (707K)

New Method for the Application of Voxels in Product Design for Multi-Material 3D-Printing
Stefan Junk and Henning Einloth | PPTX (20911K)

RE/RP/AM 3

Application of Reference Part and Design of Experiments for Metrological Evaluation of AM Manufacturing Machine with FDM Technology
Adão José Spíndola-Filho, Antônio Piratelli-Filho and Rosenda Valdés Arencibia | PDF (880K)

Segmentation and Local Reconstruction of Turbine Blade Point Cloud
ZhenYu Guo, Wei Wang, JiaMing Yang and Pai Zheng | PDF (869K)

An Efficient Algorithm for Identifying the Sub-Pixel Boundaries of Small Metal Parts Based on Multi-Similarity Fusion
Liangang Xie, Xianda Li and Xiangzhi Wei | PDF (1052K)

Geometric Modeling 2

Beta-Bezier Curves
Fuhua Cheng, Anastasia Kazadi and Alice Lin | PDF (519K)

3D Mesoscale Modeling of Aluminum Foams for FEA of Scattering Effects Due to Cell Distribution
Francesca Campana, Michele Bici, Edoardo Mancini, Daniela Pilone and Marco Sasso | PPTX (33796K)

Feature-based Design 2

Identification of Technology Opportunity Based on a Three Dimensional Technology Effect Model
Chuan He, Fan Shi, Qingjin Peng and Runhua Tan | PDF (1564K)

Automatic Update of Feature Model After Direct Modeling Operation
Xiaolian Qin, Zhihong Tang and Shuming Gao | PDF (1258K)

Product Function Redesign Based on Extension Theory
Yafan Dong, Qingjin Peng, Runhua Tan, Junlei Zhang, Peng Zhang and Wei Liu | PDF (758K)

Augmented and Virtual Reality 2

Evaluation of User Preferences for 3D Modeling and Design Reviews in Virtual Reality
Jared Nysetvold and John Salmon | PDF (1563K)

An Augmented Reality System For Operator Training In The Footwear Sector
Marta Rossi, Alessandra Papetti, Michele Germani and Marco Marconi | PPTX (17741K)

Neuro-Cognitive Rehabilitation: Design of VR Serious Games for Patients with Severe Memory Loss
Andrea Vitali, Daniele Regazzoni, Caterina Rizzi and Andrea Spajani | PPTX (47174K)

Artificial Intelligence in Design

A Novel Deep Learning-based Automatic Damage Detection and Localization Method for Remanufacturing/Repair
Yufan Zheng, Harshavardhan Mamledesai, Habiba Imam and Rafiq Ahmad | PDF (1075K)

Point Cloud Dataset Creation for Machine Learning on CAD Models
Andrew R. Colligan, Trevor T. Robinson, Declan C. Nolan and Yang Hua | PDF (1529K)

An Approach to Automatically Selecting Tolerance Types Using Relational Learning for Knowledge Graphs
Yingzhong Zhang, Jia Jia and Mohamed Saad | PDF (2421K)

Design of Porous Structures
M. Naveen Kumar and B. Gurumoorthy | PDF (340K)

Geometric Modeling 3

Weighted Skeletal Structures for Computing Variable-Radius Offsets
Martin Held and Stefan de Lorenzo | PPTX (27987K)

Notes on the CAD-Compatible Conversion of Multi-Sided Surfaces
Péter Salvi, Tamás Várady and Alyn Rockwood | PDF (5479K) | Video

Recreation of the Movements of the Femur and the Pelvis 3D Prototypes, Using a Computerized Axial Tomography (CAT) to Perform the Geometric Process
Dina Rochman | PDF (989K)

Meshes and Finite Elements 2

Triangular and Quadrilateral Bézier Discretizations of Trimmed CAD Surfaces and Its Application to the Isogeometric Analysis
Xiaoxiao Du, Gang Zhao, Wei Wang, Mayi Guo, Ran Zhang and Jiaming Yang | PDF (4121K)

Simulation of Flow Induced Multi Particle Motion with FEM Based Method
Xiaobo Peng, Diwei Zhang, Dongdong Zhang and Lai Jiang | PDF (1415K)

NURBS-Based Isogeometric Analysis for Small Deformation of Viscoplastic and Creep Problems
Ran Zhang, Gang Zhao, Wei Wang, Xiaoxiao Du and Mayi Guo | PDF (3097K)

Collaborative/conceptual/feature-based Design 3

Fast Generation of 2-Manifold Triangle Meshes for Sliced-Voxel Machined Workpiece Models Using a Lookup Table
Jimin Joy, Jack Szu-Shen Chen and Hsi-Yung Feng | PDF (1133K)

Computer Aided Creative Thinking Machines (CaXTus)
Robert E. Wendrich | PDF (771K)

Geometrical Verification of Turned Surfaces Using 3D Roughness Parameters
Joyce da Silva, Rosenda Arencibia, Luciano Arantes and Antonio Piratelli-Filho | PDF (412K)

Efficient Extraction of Information from Correlation Matrix for Product Design
Hamid Reza Fazeli and Qingjin Peng | PDF (1330K)

RE/RP/AM 4

Characterization of 3D Printability
Ioannis Fudos, Margarita Ntousia, Vasiliki Stamati, Paschalis Charalampous, Theodora Kontodina, Ioannis Kostavelis, Dimitrios Tzovaras and Leonardo Bilialis | PPTX (35323K)

Layering Defects Detection in Laser Powder Bed Fusion Using Embedded Vision System
Duc M. Dinh, Nicolas Muller and Yann Quinsat | PPTX (23487K)

Sustainability and Environmental Impact of Additive Manufacturing: A Literature Review
Marwan Khalid and Qingjin Peng | PDF (2217K)

Product Data Management 2

Identification of Subassemblies by Leveraging Design Information in 3D Models
Brigida Bonino, Franca Giannini, Marina Monti and Roberto Raffaeli | PDF (970K)

Solid Model Similarity for Engineering Applications Using Congruence of Triangles
Christopher Sousa and Rahul Sharan Renu | PDF (1856K)

Investigating and Characterising Variability in CAD Modelling: An Overview
Peter Rosso, James Gopsill, Ben Hicks and Stuart Burgess | PDF (1215K)

RE/RP/AM 5

Convergence and Remeshing Criteria for Fitting Method Based on Iterative Reparameterization via Plane Stress Model
Ivo Marinić Kragić and Damir Vučina | PDF (2088K)

Metal Additive Manufacturing for the Rapid Prototyping of Shaped Parts: A Case Study
Paolo Cicconi, Marco Mandolini, Claudio Favi, Federico Campi and Michele Germani | PPTX (20362K)

Repeatability and Accuracy of Laser Scanning-Based Reverse Engineering For Warped Composite Components
Eric Martin, O. Remus Tutunea-Fatan, Ryan Gergely and David Okonski | PDF (2336K)

Factors Influencing the Integration of Product and Service Design in Product-Service System Development
Elaheh Maleki, Marie-Anne Le Dain, Lilia Gzara, Farouk Belkadi and Alain Bernard | PDF (567K)