computer aided design and manufacture technology

... 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 ... function defined over {t, f, u} (t represents true, f represents false, and u stands for uncertain) Let mg = {Li: li} and mg′ = {Mi: mi} and form a matrix {( } ) ( M = T Li / M j : li m j , where T Li ... functions and conditional mass functions using Equations 14.10 and 14.14 Finally, the fuzzy transition probability and limiting fuzzy transition probability can be calculated using Equations 14.42 and...

Ngày tải lên: 13/12/2013, 01:15

... 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 ... methods and operation instructions When computer aided process planning (CAPP) was first attempted in the early 1960s [Neibel, 1965; Schenk, 1966], it emerged as a vital link between computer aided design ... product design to shop floor manufacturing On the one hand, it has to provide multiple decisions and alternative information transfer from design to various manufacturing functions On the other hand...

Ngày tải lên: 13/12/2013, 01:15

... 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 For ... 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 ... of functional units and combining the related assembly stands; these are equipped with the usual parts feeding and orienting devices and sometimes include positioning and handling equipment The...

Ngày tải lên: 13/12/2013, 01:15

... 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 ... currently in execution, to manufacture two final products p1 and p2, representing 509 and 640 part types Thus actual job type and order entity sets are P ϭ {p1, p2} and O ϭ {o1} with BEL-P(p␲) ... insertions/removals (e4-, and e5type events) and sending to the job flow manager the messages about failure and repair occurrences for servers, for AGV trucks and for transport subsystems (e1-, e2-, and e3-type...

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 ... chip, and other related circuits These kinds of techniques are important and may be required for further development of ISRR technology for the next century References Armarego, E J A and Deshpande, ... parameters Step 2: Read the weight matrix W_xh and W_hy, and the bias vector θ_h and θ_y Step 3: Load the input vector X of a testing example Step 4: Calculate and infer the actual output Y (a) Calculate...

Ngày tải lên: 22/12/2013, 21:18

... < ∨ ( ∧ ( x , w ) ) then ∆ = w if x s < w sj and x s ≥ ∨ ∧ x i , w ij s if x s < w sj and x s s i≠ s if x s ≥ w sj and w sj if x s ≥ w sj and w sj and ©2001 CRC Press LLC i≠ s i ij i≠ s i i≠ s ... 15.33, and the estimated value of the spindle and feed current, namely, Si and Fi (i = 1, 2, , 6) are outputted Second, the spindle and feed current detected are put into the logarithm, and are ... Sciences Technology Press 19 Halgamuge, S K and Glesner, M., 1994, Neural Networks in Designing Fuzzy Systems for Real World Applications, Fuzzy Sets and Systems, vol 65, pp 1-12 20 Li, X and Dong,...

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

... levels of product design and manufacturing, cutting the costs often associated with information lag and rework Although computer- aided design has made the design process less tedious and more efficient ... SYNTHESIS ANALYSIS AND OPTIMIZATION EVALUATION FINAL DESIGN AND SPECIFICATION Fig 13.1 The general design process Final design and specification represents the last stage of the design process Communicating ... system running on a personal computer or a workstation 13.1.2 The Design Process Before any discussion of computer- aided design, it is necessary to understand the design process in general What...

Ngày tải lên: 23/01/2014, 07:20

... 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 ... 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 ... one is not mentioned without the other Acronyms such as CAD/ CAM, CADAM (computer- aided design and manufacturing), and CIM (computer- integrated manufacturing) are often used to describe the marriage...

Ngày tải lên: 23/01/2014, 07:20

... the rectangular meander monopole at the left-hand side and other conductor line of height 21 mm is extended from the starting of the rectangular meander monopole at the right-hand side These extended ... Science, Natural Sciences and Technology 27 (2011) 59-63 The basis of the antenna structure is a rectangular meander monopole, which has the dimensions of height 28 mm and width 11 mm The conductor ... result for S11 of antenna Fig Overview the antenna Designing antenna and simulation results T.M Tuan / VNU Journal of Science, Natural Sciences and Technology 27 (2011) 59-63 Fig S11 parameter (dB)...

Ngày tải lên: 05/03/2014, 11:21

... black -and- white video display, and tape cassette, and sold well beyond expectations Microsoft expanded their market by developing Microsoft FORTRAN for CP/M-based computers, and granted Apple Computer ... the computer industry split itself into two main areas: • Serious/commercial computers Mainly IBM and DEC with their range of mainframe computers and minicomputers Within 10 years, both IBM and ... developed and helped clone manufacturers to copy the original design So the term ‘IBM compatible’ was born and it quickly became an industry standard by sheer market dominance On previous computers,...

Ngày tải lên: 18/04/2014, 12:27

... relating to UAV design and manufacture This report gives students a comprehensive overview and understanding of UAV fuselage design and manufacture According to the optimization, this UAV is designed ... CONCLUSION This UAV fuselage design and manufacture report has two main parts The fuselage design focus on aerodynamics, stress analysis and material selection And the manufacture part focuses on ... achieve the design goal, besides the wing and propulsion, the fuselage gives great contribution as well The following parts have two main sections: UAV fuselage design and manufacture In the design...

Ngày tải lên: 20/06/2014, 16:27

... 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 ... material may be challenged and removed (May 2009) [edit] External links Wikimedia Commons has media related to: Computer Aided Design (CAD) Look up computer- aided design in Wiktionary, the free ... 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

... to design and manufacture a biogas engine as a complete industrial product that users could buy and use immediately with low cost and high quality is an urgent need So "Study to design and manufacture ... to calculate and simulate dual fuel biogas diesel combustion process; - Calculating and simulating, designing biogas air mixer; - Calculating and designing biogas speed governor - Designing engine ... filtered H2O, H2S and solid particles 1.2.3 Technology filtering impurities in the biogas in Vietnam 1.2.4 Methane number 1.3 RESEARCH AND APPLICATION OF BIOGAS 1.3.1 Research and application of...

Ngày tải lên: 07/05/2015, 20:55

... chế biến nông sản, thực phẩm hoá chất, TPHCM, 2005 Hosokawa Micron Corporation, Hosokawa Product handbook, Osaka, Japan, July 1993 4.Hoàng Văn Chước, Kỹ Thuật Sấy, Nhà Xuất Bản Khoa Học Và Kỹ Thuật,...

Ngày tải lên: 17/05/2015, 12:46