design optimization of cnc vertical milling machine bed
Tài liệu Điều khiển thích nghi máy công cụ điều khiển số ( Adaptive Control of CNC Machine Tools) ppt
... so với F CNC . Kết quả là tốc độ chạy dao trung bình sẽ lớn hơn giá trị sử dụng cho máy CNC thông thờng (F CNC ). Đây chính là dạng thờng gặp nhất của AC. Hình 2: Sơ đồ nguyên lý máy CNC có điều ... một khối các modul logic và một modul PID. - Hệ đợc ghép với CNC qua một đờng riêng để truyền lệnh điều khiển cho CNC. Bây giờ CNC phải nhận lệnh điều khiển từ 2 nguồn: chơng trình NC và AC. ... chiều sâu cắt t và lực cắt P (lực cắt là hàm của t). Trên máy CNC, để đảm bảo an toàn, ngời ta lập trình với tốc độ chạy dao F CNC tơng ứng với chiều sâu cắt lớn nhất. Mặc dù phần lớn thời...
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Theory and Design of CNC Systems docx
... Introduction . . 35310.2 DesignofSoftwareArchitecture 35610.2.1 CNCSystemModeling 35610.3 DesignofSoft-NCSystem 35910.3.1 Design of Task Module . 35910.3.2 DesignoftheSystemKernel 36110.3.3 ... is composed of two parts with a total of 11 chapters: Part I is composed of Chapters 1–6 on the principle and design of CNC, and Part II is composed of anopen-architectural soft CNC system. ... method of automatic control of the weaving of fabrics with a loom machine byusing punch cards and this method was the beginning of the concept of NC. Theconcept of NC was actually applied to machine...
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Source: MACHINE DESIGN DATABOOKCHAPTER1PROPERTIES OF ENGINEERING MATERIALSSYMBOLS5;6a Aj Af pot
... subject to the Terms of Use as given at the website.PROPERTIES OF ENGINEERING MATERIALS TABLE 1-25Mechanical properties of carbon and alloy steel bars for the production of machine partsUltimate ... 500 million cycles of completely reversed stresses using rotating beam-type machine and specimen.dAt 0.2% offset.eAverage of tension and compression moduli.Key: Temper designations: F, as ... composition, %Tensile strength,min, st0.2% proof stress,min, syHardness numberElongationin 50 mm(2 in),Reduction of area,min,Designation of steel C Si Mn Ni Cr Mo Ti Nb S max P max MPa...
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design and optimization of thermal systems A Series of Textbooks and Reference Books Founding ppt
... Schematic of design as part of an engineering enterprise. Introduction 15if all of these indicators are acceptable. Design will determine the specications of the various components of the ... 286Chapter 5 Acceptable Design of a Thermal System:A Synthesis of D ifferent Design Steps 2995.1 Introduction 2995.2 Initial Design 3005.3 Design Strategies 3095.3.1 Commonly Used Design Approach ... company is closely linked with the design and optimization of new processes and systems and optimiza-tion of existing ones. Consequently, the subject of design, which had always been important,...
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design and optimization of thermal systems 66 pptx
... theoverallprocedure.ThisisfollowedinChapter6byadiscussionofeconomicfactors in design since these often guide system design and optimization. The for-mulationoftheoptimizationproblemisexplainedinChapter7.Thepresentationon optimization ... and evaluation of the chances of success and the feasibility of the undertaking, an engineering design of the system is initiated Introduction 17 Optimization of a system is often based on ... tothedevelopmentofthismaterialandtomyunderstandingofthedesignprocess.OfparticularhelphavebeenthemanydiscussionsIhavehadwithProfessorsV.SernasandN.A.LangranaofRutgersUniversityonthedesignofsystems.My...
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Design and Optimization of Thermal Systems Episode 1 Part 1 ppsx
... tothedevelopmentofthismaterialandtomyunderstandingofthedesignprocess.OfparticularhelphavebeenthemanydiscussionsIhavehadwithProfessorsV.SernasandN.A.LangranaofRutgersUniversityonthedesignofsystems.My ... 286Chapter 5 Acceptable Design of a Thermal System:A Synthesis of D ifferent Design Steps 2995.1 Introduction 2995.2 Initial Design 3005.3 Design Strategies 3095.3.1 Commonly Used Design Approach ... years on design projects and on practi-cal design problems have also provided important insights into the design pro-cess.ThecommentsofthemanuscriptreviewersandofProfessorJ.R.LloydofMichiganStateUniversity,theeditorofthisseries,havebeenveryvaluableandhelpfulinorganizingandpresentingthematerial.Iwouldliketotaketheopportunitytothankeachofthemanuscriptreviewerspersonally.Thereview-ersareJamalSeyed-Yagoobi,TexasA&MUniversity;AndrewV.Tangborn,Northeastern...
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Design and Optimization of Thermal Systems Episode 1 Part 2 pptx
... obtainedYesNoAcceptable?AnalysisandevaluationExperimentaldataMaterialpropertiesRedesignInitial design ComponentsInputsFIGURE 1.4 Schematic of a typical design procedure. 2 Design and Optimization of Thermal Systemsthose arising in different elds of engineering, ... of heattransfer,bothfromASME.Healsoreceivedthe1994DistinguishedAlumniAwardfromtheIndianInstituteofTechnology,Delhi.JaluriaisaFellowofASMEandamemberofseveralotherprofessionalsocieties.HeservedasthechairoftheHeatTransferDivisionofASMEduring2002–2003. He is presently the editor of the ASME Journal of Heat Transfer. 8 Design and Optimization of Thermal Systems(a)HotCold(b)HotCold(c)Tube ... evaluation of the enterprise must include all expenses that are expected to be incurred. Besides the cost of manufacture of the given item and the expense of advertising and sales, the cost of designing...
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Design and Optimization of Thermal Systems Episode 1 Part 3 pptx
... range or domain of acceptable designs is generally obtained. The evalu-ation of the designs requires detailed information on the performance of the sys-tem. Because of the complexity of most practical ... variety of applications, 44 Design and Optimization of Thermal Systemsapplications. The diversity of thermal systems and the range of concerns in these systems are also examined. The need for design ... to more 40 Design and Optimization of Thermal Systems design and optimization are similar, making it possible to discuss the fundamen-tal issues and procedures involved in their design. 1.4...
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Design and Optimization of Thermal Systems Episode 1 Part 4 pps
... Basic Considerations in Design 713. Simulation of the system4. Evaluation of different designs5. Iteration and obtaining an acceptable design 6. Optimization of the system design 7. Automation ... existing systems. Frequently, optimization of the system or of the process is achieved by such changes in the design. The conceptual design is then simply the design of the existing system, along ... Conceptual design Initial design Modelingand simulationEvaluationNoYesAcceptable?SolutionIterative redesignFIGURE 2.13 Iterative process to obtain an acceptable design. 48 Design and Optimization...
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Design and Optimization of Thermal Systems Episode 1 Part 5 ppsx
... position in the design process. Optimization is of particular importance in thermal systems because of the strong dependence of cost and output on system design. Usually, the optimal design is not ... Acceptable design DesignevaluationSimulationOptimal design Automationand controlModelingCommunication of design Physical processor systemRedesignFIGURE 2.14 Various steps involved in the design ... 2.14 Various steps involved in the design and optimization of a thermal system and in the implementation of the design. 84 Design and Optimization of Thermal Systemsit allows one to operate...
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Design and Optimization of Thermal Systems Episode 1 Part 6 pdf
... 118 Design and Optimization of Thermal Systems (c) Extrusion of aluminum from a heated cylindrical block, of diam-eter 15 cm at a temperature of 600 K, to a rod of diameter 5 cm at the rate of ... selection of the type of material, narrowing of the available choices, and nal selec-tion of an appropriate material.2.6 SUMMARYThis chapter presents the basic features of design of thermal ... Different techniques are available for the 114 Design and Optimization of Thermal SystemsConceptual design is the next step in the design of a thermal system to meet a given need or opportunity....
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Design and Optimization of Thermal Systems Episode 1 Part 7 pptx
... insulated outer surface of a heat exchanger. 142 Design and Optimization of Thermal SystemsThe applicability of the lumped body approximation is based on the ratio of the convective resistance ... obtaining and comparing alternative designs by predicting the performance of each design, ulti-mately leading to an optimal design. Thus, the design and optimization processes are closely coupled ... which a given level of purity must be achieved. (a) Give the formulation of the design problem. (b) Provide a sketch of a possible conceptual design. (c) Suggest the location of two sensors for...
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Design and Optimization of Thermal Systems Episode 1 Part 8 doc
... furnace for heat treatment of materials. 152 Design and Optimization of Thermal SystemsExample 3.3In the design of a hot water storage system, it is given that a steady ow of hot water at 75nC ... solution of the mathematical equations and to study the behavior and char-acteristics of the system. This is the process of simulation of the system under a variety of operating and design conditions. ... signicance of the various dimensionless parameters. 162 Design and Optimization of Thermal Systemsouter surface of the furnace should lower the temperatures. Thus, the results from the solution of...
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Design and Optimization of Thermal Systems Episode 1 Part 9 pdf
... method of 194 Design and Optimization of Thermal SystemsSolutionThe variation of Q with D and $p may be written for a power-law variation asQ BDa($p)bTaking the natural logarithm of ... distribution of data points, and the determination of the coefcients of the poly-nomial does not require the solution of a system of equations, as was the case for the general polynomial. Because of ... a best t to represent these data. 188 Design and Optimization of Thermal Systemsyavg being the average, or mean, of the given data. Then the extent of improvement due to curve tting by...
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