지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 맹희영
- 발행연도
- 2015
- 저작권
- 서울과학기술대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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3D scanning system is commonly used in disciplines requiring 3D object mapping such as 3D reverse engineering, 3D printing, and digital archiving. Recently, there have been increased efforts in research and development of automatic 3D scanning devices to improve productivity of reverse engineering fields. Several types of automated 3D scanners are currently available for use in the 3D scanning industry, for example, automated 3D scanners that use either a robotic arm or rotary stage for precise movements and object positioning. These particular scanners make use of automated assisting devices and are often required to perform numerous additional operations such as aligning, merging, trimming, and hole-filling. These additional operations are important issues which determine time consumption while maintaining quality of 3D shape data.
The aim of this study is to design and develop a 3D shape collection device using a spherical coordinate system. Our design incorporates an automated guiding system for 3D data acquisition and system accuracy verification. We develop a 3D model of this system and acquire 3D measurement data using a personal computer. An optimal design of this system and geometrical accuracy of experimental data are both evaluated using FEM analysis software and 3D model evaluating software. The developed system is then used to measure an object having complex shape and manifold sections. Our simulation results demonstrate that the developed system achieves higher productivity and ease of use with higher quality 3D data than conventional methods.
The aim of this study is to design and develop a 3D shape collection device using a spherical coordinate system. Our design incorporates an automated guiding system for 3D data acquisition and system accuracy verification. We develop a 3D model of this system and acquire 3D measurement data using a personal computer. An optimal design of this system and geometrical accuracy of experimental data are both evaluated using FEM analysis software and 3D model evaluating software. The developed system is then used to measure an object having complex shape and manifold sections. Our simulation results demonstrate that the developed system achieves higher productivity and ease of use with higher quality 3D data than conventional methods.
목차
1. Introduction 12. The background of 3D scanning system and theoretical considerations 22.1 Background of 3D reverse engineering 22.2 Background of the 3D scanning devices 32.3 Automation technologies for 3D scanning data collection 82.4 Transformation matrix for spherical coordinate system 112.5 Error factors of 3D shape geometrical models 143. System design and control procedure 173.1 Concept of system 173.2 System configuration 183.3 Mechanical design configuration 193.4 Control system configuration 254. Methodology for evaluation of system accuracy 334.1 Device accuracy caused by structural deflection 334.2 The evaluation for tilt error of the device 374.3 System calibration by the experimental test 414.4 The model for evaluating system performance 455. The result of overall evaluation and consideration 475.1 The result of FEM analysis for structural precision 475.2 The evaluation of system efficiency 495.3 The evaluation of geometrical accuracy 505.4 The dependence of geometrical accuracy according to number of shots 575.5 The consideration by using missing area pattern of target objects 586. Conclusion 61Reference 62Achievements 64
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