computer aided design manufacturing and engineering systems

... 14.3 Monitoring and Diagnosing Manufacturing Processes Using Fuzzy Sets 14.3.1 Using Fuzzy Systems to Describe the State of a Manufacturing Process For monitoring and diagnosing manufacturing processes, ... product defects and process/system malfunctions early, and hence, eliminate costly consequences They also help to diagnose the root causes of the problems in design and production and hence minimize ... identification, and estimation Monitoring and diagnosing play a very important role in modern manufacturing This is because manufacturing processes are becoming increasingly complicated and machines...

Ngày tải lên: 13/12/2013, 01:15

... between computer aided design (CAD) and computer aided manufacturing (CAM) Today process planning has become an important part in computer integrated manufacturing (CIM) environment [Zhang and Alting, ... applications in computer- aided design (CAD) and computer- aided manufacturing (CAM) [Pratt, 1993], [Case and Gao, 1993] Part features for process planning are slightly different from those for CAD and CAM ... changes in manufacturing processes and manufacturing requirements have far-fetching importance in modern manufacturing environment As the development in such areas as open manufacturing systems and...

Ngày tải lên: 13/12/2013, 01:15

... marketing, design, manufacturing, and finance systems To reach more comprehensive assessments, issues are stated by collecting and comparing properly standardised indices and by tracking and acknowledging ... concurrent parts feeding systems and dedicated joining devices; and • assembly stand, namely, a workstation with piece placing and parts feeding fixtures, pick-andplace mechanisms, and joining units ... assembly stations with related parts and fixtures logistics and robotics; and • assembly cell: a servoed and fixtured posture, with appropriate feeding systems and one (or more) instrumental robots...

Ngày tải lên: 13/12/2013, 01:15

... [4] Elia, G., and Menga, G 1994, Object-oriented design of flexible manufacturing systems, in Computer Control of Flexible Manufacturing Systems Research & Development, S.B Joshi and J.S Smith, ... B., 1996, System approach to design generic software for real-time control of flexible manufacturing systems, IEEE Trans Systems, Man and Cybernetics — Part A: Systems and Humans, vol 26, no 2, pp ... LOS(jk) and ROS(jh) ϭ ROS (jk) and JSTATUS(jh) ϭ Ready for assembling and SCI(jh) ϭ 0} and {for each w␲␦ ʦ W | w␲␦ ϭ w␲␣ and (w␲␦, w␲␤) ʦ A ᭚ WEI [(w␲␦, w␲␤)] jobs jh | BEL-P[LOS( jh)] ϭ w␲␦ and...

Ngày tải lên: 13/12/2013, 01:15

... µo = and σo = and δ = 0, ±1, ±2, ±3, and ±4 These observations were fed directly to the network and trained by a standard backpropagation algorithm to achieve a desired output between –1 and The ... Performances of Chang and Gan’s (1995) CUSUM and Crowder and Hamilton’s (1992) EWMA are not significantly better than Page’s (1963) CUSUM; however, their development of design strategies and procedures ... Acosta and Pignatiello’s (1996) CUSUM scheme and EWMA charts, as shown in Tables 18.6(a) and (b), to Acosta and Pignatiello’s (1996) EWMA chart which adopts Roberts’ (1959) EWMA for mean and Wortham’s...

Ngày tải lên: 22/12/2013, 21:18

... Parameter Design 17.4 Case Study: Plasma Etching Process Modeling and On-Line Parameter Design 17.5 Conclusion 17.1 Introduction Besides aggressively innovating and incorporating new materials and ... design include (i) orthogonal array approaches, and (ii) traditional factorial and fractional factorial design approaches The orthogonal array approaches are promoted extensively by Taguchi and ... is relatively standard, and consists of three operations [Liepins and Hilliard, 1989]: (i) evaluation of individual fitness, (ii) formation of a gene pool, and (iii) recombination and mutation,...

Ngày tải lên: 22/12/2013, 21:18

... beforehand) and then transmitted to a 486 personal computer for further data recording, processing, and analysis ©2001 CRC Press LLC CNC Machine Center Vise Accelerometer Sensor 486 Personal Computer ... collection 16.5 Testing Results and Conclusions 16.5.1 Testing Results After the experiment was conducted and both the ANN and FN systems were developed, testing experiments were designed to test the predictive ... surfaces exhibit interrelated characteristics of both random and deterministic components Zhang and Kapoor [1991] demonstrated the effect of random vibrations on surface roughness in the turning...

Ngày tải lên: 22/12/2013, 21:18

... as computer integrated manufacturing (CIM) and flexible manufacturing systems (FMS) However, many manufacturing processes involve some aspects of metal cutting operations The most crucial and ... Wang, G and Li, X., 1997, Fuzzy Theory and Its Applications in Manufacturing, China Yunnan Sciences Technology Press 19 Halgamuge, S K and Glesner, M., 1994, Neural Networks in Designing Fuzzy Systems ... monitored Fuzzy systems and neural networks are complementary technologies in the design of intelligent systems Neural networks are essentially low-level computational structures and algorithms...

Ngày tải lên: 22/12/2013, 21:18

... element The handle snaps to the reference and an offset value appears in the graphics window Pick this surface as placement surface 11 Drag the reference handles onto the right and top surfaces ... appropriate Sketcher Tools to create and dimension the section as shown below , , , , , Click Type in 40 for the depth of extrusion Click Click and select Standard Orientation CREATE BOTH SIDES ... pick TOP datum plane, and set Orientation to Top Then click the Sketch button Click the Close button in the References dialog box Click the small forward > icon to expand, and pick Draw a horizontal...

Ngày tải lên: 27/10/2013, 17:15

... end of switch % ve thi close all; figure('Color','w'); for k=1:m hold on r1=r*k; mau=[rand(1,1) rand(1,1) rand(1,1)]; h=polar(theta,r1); © TcAD - 2003 19 Giáo trình thí nghiệm CAD set(h,'color',mau,'LineWidth',2); ... thị: >>xlabel(‘Time’) >>ylabel(‘Amplitude’) >>title(‘y1=sinx.cos2x and y2=sin(x^2)’) >>legend(‘sinx.cos2x’,’sinx^2’) y1=sinx.cos2x and y2=sinx sinx.cos2x sinx Amplitude 0.5 -0.5 -1 Time Hình 1.1 ... Giáo trình thí nghiệm CAD Lời nói đầu Cùng với phát triển nhanh chóng máy tính, CAD (Computer- Aided Desgin) xây dựng ngày hoàn thiện ứng dụng hầu hết lĩnh vực khoa học kỹ thuật Đối với...

Ngày tải lên: 21/01/2014, 03:20

... manufacture and from manufacturing to market The related processes of Design for Manufacturing (DFM) and Design for Assembly (DFA) have become integral parts of the concurrent engineering approach Design ... offered as minicomputer systems in the late 1970s and early 1980s A number of display terminals can be supported by minicomputer systems, and on-line printers for minicomputer systems are capable ... between two and three thousand lines of text per minute Microcomputers, which include the personal computer and engineering workstations, are desktopsize or smaller computers These computers have...

Ngày tải lên: 23/01/2014, 07:20

... today's manufacturing environment that often, one is not mentioned without the other Acronyms such as CAD/ CAM, CADAM (computer- aided design and manufacturing) , and CIM (computer- integrated manufacturing) ... the design interactively on the computer display screen Wireframe representations, whether in 2D or 3D, can be ambiguous and difficult to understand Because mechanical and other engineering designs ... interface standard 13.7.3 Computer Languages The computer must be able to understand the commands it is given in order to perform desired tasks at hand The binary code used by the computer circuitry...

Ngày tải lên: 23/01/2014, 07:20

... our designing on using DNA single strands and their efficient capability to bind to their complementary strands Designed hexagonal and octagonal networks are shown in Fig 2a and c Our results Designing ... the proper sequence for the linker single strand DNAs Like the prior designations, the linker sequences designed, blasted and aligned with each other and with other sequences to gain the best result ... of hexagonal and octagonal block strands the software BioEdit was used to measure the efficiency of those sequences, aligning and blasting of sequences were performed, the less score and the less...

Ngày tải lên: 22/06/2014, 22:20

... problems related to flickering display and jitter, and the adoption of CAD/CAM (Computer- Aided Design /Computer- Aided Manufacturing) , and ACM's SIGGRAPH CORE graphics standard in the 1970s upFront.eZine ... (architecture, engineering and construction) • • • • • • • • • Comparison of CAD editors for CAE (Computer Aided Engineering) Comparison of Free EDA software (Electronic Design Automation) 3D computer ... Surfaces in CAGD, Handbook of Computer Aided Geometric Design ^ H Pottmann, S Brell-Cokcan, and J Wallner:Discrete surfaces for architectural design ^ Gerald Farin :Curves and Surfaces for CAGD:...

Ngày tải lên: 12/07/2014, 06:20

... 1/80 Lời nói đầu thí nghiệm CAD (ComputerAided Design) Lời nói đầu thí nghiệm CAD (Computer- Aided Design) Cùng với phát triển nhanh chóng máy tính, CAD (Computer- Aided Desgin) xây dựng ngày hoàn ... nghiệm CAD (Computer- Aided Design) Biên tập bởi: ThS.Nguyễn Chí Ngôn Các tác giả: unknown Phiên trực tuyến: http://voer.edu.vn/c/c949c256 MỤC LỤC Lời nói đầu thí nghiệm CAD (Computer- Aided Design) ... end of switch % ve thi close all; figure('Color','w'); for k=1:m hold on r1=r*k; mau=[rand(1,1) rand(1,1) rand(1,1)]; h=polar(theta,r1); set(h,'color',mau,'LineWidth',2); axis equal; end % end...

Ngày tải lên: 29/11/2014, 12:21

... Th.s NGUYỄN CHÍ NGÔN Thí nghiệm CAD (Computer- Aided Design) Được biên soạn khuôn khổ dự án ASVIET002CNTT ”Tăng cường hiệu đào tạo lực tự đào ... end of switch % ve thi close all; figure('Color','w'); for k=1:m hold on r1=r*k; mau=[rand(1,1) rand(1,1) rand(1,1)]; h=polar(theta,r1); © TcAD - 2003 19 Giáo trình thí nghiệm CAD set(h,'color',mau,'LineWidth',2); ... thị: >>xlabel(‘Time’) >>ylabel(‘Amplitude’) >>title(‘y1=sinx.cos2x and y2=sin(x^2)’) >>legend(‘sinx.cos2x’,’sinx^2’) y1=sinx.cos2x and y2=sinx sinx.cos2x sinx Amplitude 0.5 -0.5 -1 Time Hình 1.1...

Ngày tải lên: 06/07/2015, 23:12

... College and College Reception through CAD Seventh Semester Plan of Work Eighth Semester Computer Aided Designing (CAD) When the products in pre -manufacturing stage are designed with the help of computer- based ... termed as CAD Computer Aided Design (CAD) It is a form of design in which people work with computers to create ideas, models, and prototypes Types of CAD System Texture Pad System Textile Design System ... programming systems, which provides CAD and processing of all weave and pattern data Book: Sabit Adanur, “Handbook of Weaving”, Technomic Publication, 2001 Development of Design on ArahWeave The design...

Ngày tải lên: 15/08/2015, 01:53

... structure in collaborative design systems developed: client-server systems, agent-based systems and peer-to-peer systems Each has its advantages and disadvantages And different structures behave ... management and transmission of data in the distributed collaborative design environment • Design Representation, which aims to represent design, design behaviors and design process The design process ... et al., 1995] Design representation includes product structure, design artifact relationship, design status, design changes, design events, design processes, design constraints and so on Such...

Ngày tải lên: 04/10/2015, 15:52

... is available from the British Library COMPUTER AIDED AND INTEGRATED MANUFACTURING SYSTEMS A 5-Volume Set Volume 4: Computer Aided Design /Computer Aided Manufacturing (CAD/CAM) Copyright © 2003 ... In recent years, computer- aided design and computer- aided manufacturing (CAD/CAM) have become very popular, especially in the manufacturing industries It links the designing and manufacturing stages ... very little doubt that all future manufacturing systems and processes will utilize the methods of CAD/CAM (Computer Aided Design /Computer Aided Manufacturing) , and this is the subject of Volume...

Ngày tải lên: 28/03/2014, 09:20

... 1.3 Ligand and Structure based drug design .6 1.3.1 Ligand-based drug design 1.3.1.1 Quantitative structure–activity relationship (QSAR) 1.3.2 Structure-based drug design ... drugs against two targets i.e neuraminidase and MCL-1 and in process learn different methodologies used in computer aided drug design such as QSAR, docking and molecular dynamics The two targets were ... logP and pKa, electronic e.g polarity and polarizability, topological e.g connectivity and Weiner index, geometrical e.g length, width and molecular volume etc and complex e.g BCUT, WHIM and 3D-MoRSE...

Ngày tải lên: 09/09/2015, 11:06