finite element modeling and analysis in cim

... Contents x FINITE ELEMENT MODELING AND ANALYSIS IN CIM 189 7.1 INTRODUCTION 7.2 GENERAL STEPS INVOLVED IN FINITE ELEMENT ANALYSIS 7.3 TYPES OF ANALYSIS 7.4 DEGREES OF FREEDOM 7.5 INFLUENCE COEFFICIENTS ... to be maintained 2.6 IMPLEMENTATION OF CONCURRENT ENGINEERING The cycle of engineering design and manufacturing planning involves interrelated activities in different engineering disciplines simultaneously, ... ENGINEERING 2.5 COMPARISON OF CONCURRENT ENGINEERING AND SEQUENTIAL ENGINEERING 2.6 IMPLEMENTATION OF CONCURRENT ENGINEERING 2.7 CONCURRENT ENGINEERING AND INFORMATION TECHNOLOGY 2.8 SOFT AND...

Ngày tải lên: 08/04/2014, 10:34

... problem Increasing recycling of materials and energy results in highly integrated processes Saving resources and preserving flexibility in operation could raise conflicts These can be prevented by integrating ... technology And last but not the least we express our gratitude and love to our families, for continuous support and understanding January 2008 Alexandre C Dimian Costin Sorin Bildea XIX 1 Integrated ... by adopting the life-cycle modeling approach, in which the key elements are recognizing the priority of conceptual tasks and minimizing the structural revisions References Dimian A.C., Integrated...

Ngày tải lên: 01/04/2014, 10:41

... finishing and electrode making Roughing Finishing Heat treatment Drilling Milling Twist Drilling Face milling Gun Drilling Grinding CNC finishing End milling EDM W/CUT EDM—die sinking Grinding ... operations and their relative sequence in mould making Finishing Roughing Drilling Milling Twist Drilling Face milling Gun Drilling Heat treatment Grinding CNC finishing End milling EDM—die sinking Grinding ... groups of EDM die-sinking, EDM –W/cut, grinding, and milling/drilling From the view of productivity and maintenance, some machines in the milling/drilling group are only used for roughing, some are...

Ngày tải lên: 16/09/2015, 12:35

... CAE Abbreviation of computer-aided engineering, computer systems that analyze engineering designs Most CAD systems have a CAE component, but there are also independent CAE systems that can analyze ... điền đầy thời gian packing 3.2 Q trình bão áp (packing) Sau điền đầy nhựa vào lòng khn khoảng 98 %, lúc xem q trình Filling kết thúc Máy chuyển sang q trình q trình packing Mục đích q trình trì ... PHẦN 2: CÔNG NGHỆ CAE Ứng suất trượt q trình packing 3.3 Q trình làm nguội (cooling) Biểu đồ biểu diễn q trình ép phun Sau hai q trình Filling Packing thấy q trình ép phun đến giai đoạn đảm bảo...

Ngày tải lên: 27/04/2013, 20:25

... Click the Close button in the References dialog box Click the small forward > icon to expand, and pick Draw a horizontal centerline through coordinate system This centerline is used to ensure ... All icon Setting Hole References When placing hole features you can easily set the secondary references by dragging the reference handles onto the desired reference 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 of the part The handle snaps...

Ngày tải lên: 27/10/2013, 17:15

... 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, ... available information (learning from samples) and knowledge (learning from instruction) Since the users must provide information and instruction, the learning is a supervised learning To facilitate ... R M and de Korvin, A., 1998, Constructing One-Step and Limiting Fuzzy Transition Probabilities for Finite Markov Chains, J Intelligent Fuzzy Systems, no 6, pp 223-235 Quinlan, J R., 1986, Induction...

Ngày tải lên: 13/12/2013, 01:15

... reaming, through slab milling, drilling, and slotting to step milling” and “using machining route starting from slab milling through reaming, drilling, and slotting to step milling.” The two decisions ... described is a planning example based on metal cutting processes for machining the part as shown in Figure 3.1 The machining operations, machine tools, and cutting tools, used in the machining processes ... planning, Int J Comput Integrated Manuf., 10 (1–4), 83–91 Zhao, Z X and Baines, R W., 1992, Conjugative coding design and manufacturing information in computer integrated manufacturing system, Int...

Ngày tải lên: 13/12/2013, 01:15

... click joining (or spring locking), screw linking, tails cutting, glue sticking, and ultrasonic soldering; and • the testing units are charged to perform tasks, such as inspecting parts and artefacts ... design-feedback-choice and setting-testing-fitting closed for product and process Improvements are related to innovations in computer-integrated manufacturing and engineering (CIME), such as cooperative ... buffering, transfer, and handling along the principal flow; parts feeding modules, for granting storing and sorting services of secondary flows; processing modules, such as: screw-drivers, joining-fixtures,...

Ngày tải lên: 13/12/2013, 01:15

... necessary—usable in an arbitrary FMS producing an arbitrary part mix and minimizing the programming and reprogramming effort To design a generic and flexible control software, two main problems emerge ... loading decision rules Decisions concerning the piece type to introduce next into the system and the corresponding loading time must be taken simultaneously The sequencing function and timing ... messages, and when the time supervisor sends a new job loading order; and • sending to the job release manager the messages involving order insertions/removals (e4-, and e5type events) and sending...

Ngày tải lên: 13/12/2013, 01:15

... subgrouping, 5th Industrial Engineering Research Conference Proceedings, 693-698 Chang, S I and Aw, C (1996) A neural fuzzy control chart for detecting and classifying process mean shifts, International ... j in the hidden and output layers, contains the input links with weights wij, an activation function (or transfer function) f, and output links to other nodes as shown in Figure 18.4 Assuming ... 20 input nodes, hidden layers, and output nodes Input values are the decimal values equivalent to the percentage values shown in Table 18.2 and are obtained by using the method described in the...

Ngày tải lên: 22/12/2013, 21:18

... for On-Line 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 ... training the network (as discussed in Section 17.2.1.2) and the remaining subset for testing, repeating the training process S times, holding out a different subset for each run, and totaling ... outputs in the network during the learning process (eliminating the undue in uence of differing amplitudes and ranges of the outputs on the training process) TABLE 17.3 MLP Neural Network Training...

Ngày tải lên: 22/12/2013, 21:18

... review, in addition to communication with leading private industrial research and development laboratories in the state of Iowa (including Winnebago Co in Forest City; Delavan Inc in Des Moines; ... manually inspecting machined surfaces at fixed intervals A surface profilometer containing a contact stylus is used in the manual inspection procedure This procedure is both time-consuming and labor-intensive ... from the training and testing 16.4.2 ISRR-FN System The structure of the ISRR-FN, as shown in Figure 16.8, consisted of the sensing system, machining parameters, and ISRR-FN In this sensing system,...

Ngày tải lên: 22/12/2013, 21:18

... Methods in Turning, in Proc 26th International Machine Tool Design and Research Conference, pp 289-296 26 Novak, A and Ossbahr, G., 1986, Reliability of the Cutting Force Monitoring in FMS-Installations, ... X and Dong, S., 1999, Intelligent Monitoring Technology in Advanced Manufacturing, Science Press of China 21 Li, X., Dong, S and Venuvinod, P K., 1999, Hybrid Learning for Tool Wear Monitoring, ... processing methods in TCM These methods have a good solution in the frequency domain but a very bad solution in the time domain, so that they lose some useful information during signal processing In...

Ngày tải lên: 22/12/2013, 21:18

... engineering drawing For machining, process planning includes determination of the specific operations required and their sequence, which include tooling, fixturing, and inspection equipment In some cases, ... machines used include conventional machines (e.g., horizontal and vertical milling, drilling, and grinding) and CNC machining centers 9.2.2 The Process Planning Problem Given a part and a set of ... string-1 and string-2 offspring-1 and offspring-2 Determine a cut point randomly from all the positions of a string Each string is divided into two parts, the left side and the right side, according...

Ngày tải lên: 25/12/2013, 19:15

... manufacturing environment The integrated machining system (IMS) begins with the interpretation of a part drawing and transformation of the geometrical data into a frame structure of machining features ... machining features and the subsequent intelligent processing of the required information Five steps governing the selection of tool holders and inserts have been discussed Four steps involved in ... environments • Interactive prompting routines that lead a user to retrieve information in an orderly manner • Data base of updatable files containing standard information, proprietary information, and product-facility...

Ngày tải lên: 25/12/2013, 22:15

... Applied at Point (TLAP) functionality, a datum point located on the applied surface must be created This will be used for defining the load and since we will use Total Load at Point (TLAP) and Moment, ... Note that the working coordinate system used for this constraint is WCS – Cartesian coordinate system OK, then click OK button in the Constraint window Note that FIXED constraint should be appeared ... Fail_index Set the following: Set the Display type to Fringe Set the Quantity to Failure Index Click OK Click icon In the Display Result Window, make sure to highlight Fail_index ONLY, and click...

Ngày tải lên: 19/01/2014, 05:20

... >>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 – Biểu ... so sinh vien Dien tu – Tin hoc tot nghiep % Khoa Cong nghe Thong tin, Dai hoc Can tho, tu 1996-2001 % svdt=[38 33 36 31 60 70]; % sinh vien Dien tu svth=[48 54 120 92 110 131]; %sinh vien Tin ... (Cơ sở tự động học) Do đó, không bắt buộc sinh viên Tin học (nếu có) sinh viên Điện tử theo hướng Viễn thông Trong trường hợp đó, sinh viên thực tập sinh viên chuyển sang © TcAD - 2003 38 Giáo...

Ngày tải lên: 21/01/2014, 03:20

... using a CAD system Finite element analysis and static and dynamic analysis are all commonly performed analytical methods available in CAD Finite element analysis (FEA) is a computer numerical analysis ... without losing a print Other sensors eliminate printing voids and unwanted marks caused by bubbles in the ink lines Special print modes typically handle high-resolution printing by repeatedly going ... applications Computationally intensive number crunching in 3D surface and solid modeling, photorealistic rendering, and finite element analysis applications demand a great deal from a personal computer...

Ngày tải lên: 23/01/2014, 07:20

... calculated by determining the length of the line between points and Most engineering designs are much more complex than simple, whole shapes, and CAD systems are capable of combining shapes in various ... 256), and so on For PCs, both operating systems and GUIs are in a tremendous state of flux Microsoft Windows, Windows NT, and Windows 95 are expected to dominate the market, followed by the Macintosh ... data and the user can also define new data types, depending on the requirements for the program Defined data types used in Pascal include strings, arrays, sets, records, files, and pointers Strings...

Ngày tải lên: 23/01/2014, 07:20

... filling, cooling, and mold opening time, respectively, and q1, q2, q3 are instantaneous heat flux values during filling, cooling, and mold opening time, respectively The value of heat flux q1 during ... design in injection molding is presented Various aspects of optimization including cooling analysis and sensitivity analysis using the boundary element method, optimization problem formulation and ... coefficient and temperature at node i By introducing shape functions and evaluating the integration constants in Eq (8), one obtains the following system of equations in matrix form after taking all...

Ngày tải lên: 12/02/2014, 22:20