design of underground excavations
SAP2000® Linear and Nonlinear Static and Dynamic Analysis and Design of Three-Dimensional Structures
Ngày tải lên :
06/09/2012, 15:56
... Click the Design menu > Steel Frame Design > Start Design/ Check of Structure command or the Start Steel Design/ Check of Structure button, to start the steel frame design process The program designs ... Click the Design menu > Steel Frame Design > Start Design/ Check of Structure command or the Start Steel Design/ Check of Structure process button, to start the steel frame design G When the design ... and design sections match This may take numerous iterations depending upon the complexity of the model H When the analysis and design sections are the same, click the Design menu > Steel Frame Design...
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SAP2000 Integrated Finite Elements Analysis and Design of Structures
Ngày tải lên :
06/09/2012, 15:56
... title of the window reads YZ Plane @ X=24 This same title also occurs on the left-hand side of the status bar at the bottom of the SAP2000 window Click the roof level beam on the left side of the ... enter Select Mode 24 Click the roof beam at the top of the braced frame to select it Also click the joint at the top of the chevron brace (center of braced frame roof beam) to select it 25 From ... side of the point where you clicked SAP2000 Web Tutorial 18 Thus click the ten locations designated by an O in Figure C-9 to draw some of the roof level beams Figure C-9: Quick Drawing Roof Level...
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The design of mat foundations
Ngày tải lên :
16/10/2012, 10:43
... being designed for a small office building with a total live load of 250 kips and dead load of 500 kips Find: (a) the depth Df for a fully compensated foundation, (b) the depth Df if a soft clay ... in some areas of the central and western United States Photograph of the construction of the mat foundation for the new Century Hotel in San Francisco (1999) Having had 25 feet of dredge spoils ... Details of a mat foundation, serving as the slab of a one-story basement Compensated mat foundations If zero settlement is desired, the excavated soil weight will be equal to the weight of the...
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DESIGN OF REINFORCED MASONRY STRUCTURES
Ngày tải lên :
17/08/2013, 11:41
... the strength design philosophy for the design of concrete structures, and load and resistance factor design (LRFD) for the design of steel structures Readers of the first edition of this book ... Dr Taly is the author of Loads and Load Paths in Buildings: Principles of Structural Design and Design of Modern Highway Bridges He is a co-author of Reinforced Concrete Design with FRP Composites ... cross-sectional area of member, in.4 (mm4) Ieff = effective moment of inertia of member, in.4 (mm4) Ig = moment of inertia of gross (or uncracked) cross-sectional area of member, in.4 (mm4) j = ratio of distance...
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Novel design of a compacted micro-structured air-breathing PEM fuel cell as a power source for mobile phones
Ngày tải lên :
05/09/2013, 14:58
... micro-fuel cells in terms of design, materials, effective transport of reactants, and heat management The development of physically representative models that allow reliable simulation of the processes ... for the design and optimization of future fuel cells to improve their lifetime with a much higher power density and lower cost The analysis offers valuable physical insight towards design of a cell ... performance and design of air-breathing PEM fuel cells Litster and Djilali [1] developed a single-phase one-dimensional semi-analytical model of the membrane electrode assembly (MEA) of planar air-breathing...
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Optimal design of PEM fuel cells to generate maximum power: A CFD study
Ngày tải lên :
05/09/2013, 14:58
... reflects the influence of the operating parameters on fuel cell performance to investigate the in situ total displacement and degree of the deformation of the polymer membrane of PEM fuel cells The ... decreases with increasing of the cell operating pressure This is because of the exchange current density of the oxygen reduction reaction increases with increasing of the cell operating pressure ... International Journal of Energy and Environment IJEE, 2010; 1(2), 183-198 [5] Chun-Hua Min Performance of a proton exchange membrane fuel cell with a stepped flow field design Journal of Power Sources,...
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Novel design of a disk-shaped compacted micro-structured air-breathing PEM fuel cell
Ngày tải lên :
05/09/2013, 14:58
... micro-fuel cells in terms of design, materials, effective transport of reactants, and heat management The development of physically representative models that allow reliable simulation of the processes ... for the design and optimization of future fuel cells to improve their lifetime with a much higher power density and lower cost The analysis offers valuable physical insight towards design of a cell ... performance and design of air-breathing PEM fuel cells Litster and Djilali [1] developed a single-phase one-dimensional semi-analytical model of the membrane electrode assembly (MEA) of planar air-breathing...
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Theory and design of CNC systems (Học CNC)
Ngày tải lên :
08/09/2013, 20:50
... 10.3 Design of Soft-NC System 10.3.1 Design of Task Module 10.3.2 Design of the System Kernel ... 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 an open-architectural soft CNC system Specifically, ... invented the method of automatic control of the weaving of fabrics with a loom machine by using punch cards and this method was the beginning of the concept of NC The concept of NC was actually...
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Theory and Design of Electrical and Electronic Circuits
Ngày tải lên :
23/10/2013, 16:15
... Equivalent circuit of a inductor Measurement of the characteristics Transformer of alimentation Design Transformer of audiofrecuency Transformer of pulses Design Inductors of filter with continuous ... voltage of PINCH-OFF or "strangulation of the channel" defined in the curves of exit of the transistor, whose module agrees numerically with the voltage of cut in the curves of input of the transistor ... inductance of reflected dispersion of the secondary resistance of the copper of the wire of the primary resistance of the copper of the wire of the secondary resistance of losses for Foucault and hysteresis...
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Electronics - Theory and Design of Electrical and Electronic Circuits
Ngày tải lên :
27/10/2013, 16:15
... Equivalent circuit of a inductor Measurement of the characteristics Transformer of alimentation Design Transformer of audiofrecuency Transformer of pulses Design Inductors of filter with continuous ... voltage of PINCH-OFF or "strangulation of the channel" defined in the curves of exit of the transistor, whose module agrees numerically with the voltage of cut in the curves of input of the transistor ... inductance of reflected dispersion of the secondary resistance of the copper of the wire of the primary resistance of the copper of the wire of the secondary resistance of losses for Foucault and hysteresis...
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Tài liệu Design of a USB Device Driver ppt
Ngày tải lên :
13/12/2013, 00:15
... ? Architecture of an Embedded USB Device ? USB Device Driver Architecture ? Case Study of a USB Device Driver ? Testing Strategies ? Issues to consider ? Conclusions 13 Types of USB Controllers ... Architecture of an Embedded USB Device ? USB Device Driver Architecture ? Case Study of a USB Device Driver ? Testing Strategies ? Issues to consider ? Conclusions 19 Architecture of an Embedded ... Utilize USB Organizations Test Resources 45 Analyzer View 46 23 Host Software Testing Strategies ? Schedule availability of Host software –USB mini-driver –Host Test Application ? Request Host Test...
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Tài liệu Design of Sheet Pile Walls doc
Ngày tải lên :
13/12/2013, 11:15
... the depth of penetration of the piling or by a combination of penetration and anchor position for an anchored wall Because of the complexity of behavior of the wall/soil system, a number of simplifying ... total length of the sheet piling (ft) ep = eccentricity of the point of application of P from the centroidal axis of the piling (may be positive or negative) E = modulus of elasticity of the pile ... Modes of Failure 5-1 Design for Rotational Stability 5-2 5-1 5-1 Chapter Structural Design Forces for Design 6-1 Deflections 6-2 Design of...
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Tài liệu Design Of Fuzzy Controllers doc
Ngày tải lên :
23/12/2013, 02:17
... used as VFKHGXOLQJ YDULDEOHV that govern the change of the controller parameters, often by means of a table look-up Whether a fuzzy control design will be stable is a somewhat open question Stability ... example of a controller that finds the rules itself Neural networks is another possibility There is no design procedure in fuzzy control such as root-locus design, frequency response design, ... rules and not a mixture of connectives Incidentally, a fuzzy rule with an RU combination of terms can be converted into an equivalent DQG combination of terms using laws of logic (DeMorgan’s laws...
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Tài liệu The Design of Rolling Bearing Mountings P2 ppt
Ngày tải lên :
25/12/2013, 05:17
... inclining of rolls and and by counterbending of rolls and Moreover, the narrow tolerance of the foil thickness requires a high radial runout accuracy of the bearings and adequate radial guidance of ... viscosity of = mm2/s An elaborate labyrinth seal protects the bearings from the ingress of cutting fluid and chips (rubbed-off particles) and from oil escape 21: Bearing arrangement of a rough-turning ... No WL 00 200/5 EA The Design of Rolling Bearing Mountings Design Examples covering Machines, Vehicles and Equipment Publ No WL 00 200/5 EA FAG OEM und Handel AG A company of the FAG Kugelfischer...
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Tài liệu The Design of Rolling Bearing Mountings P1 pptx
Ngày tải lên :
25/12/2013, 05:17
... The Design of Rolling Bearing Mountings Design Examples covering Machines, Vehicles and Equipment Publ No WL 00 200/5 EA FAG OEM und Handel AG A company of the FAG Kugelfischer ... 73 Run wheel of a material ropeway 5/8 74 Rope return sheaves of passenger ropeway 5/8 75 Rope sheave (underground mining) 5/8 76 Rope sheave of a pulley block ... of a billet mill 6/8 108 Work rolls of a section mill 6/8 109 Two-high rolls of a dressing stand for copper and brass bands 6/8 110 Straightening rolls of...
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Analysis and design of control systems using MATLAB
Ngày tải lên :
01/01/2014, 18:43
... of the real part of G(jω) versus the imaginary part of G(jω) Pole of a Transfer Function: The root (solution) of the (characteristic) equation obtained by setting the denominator polynomial of ... system’s equations of motion are rewritten as a system of first-order differential equations, each of these differential equations consists of the time derivative of the one of the state variables ... the magnitude of the sensitivity-function is made arbitrarily small 1.8 CONTROL SYSTEM ANALYSIS AND DESIGN OBJECTIVES Control systems engineering consists of analysis and design of control systems...
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Tài liệu The Design Of Manufacturing Systems P2 docx
Ngày tải lên :
19/01/2014, 18:20
... that the designer can easily interact with the system Ranking of Redesign Alternatives Another area requiring research attention in the context of generation of redesign solutions (design advisor) ... Development of appropriate measures of manufacturability • Accounting for design tolerances by the manufacturability system • Automatic generation of redesign suggestions for the design violations ... ranking of the generated redesign alternatives [Allada, 1997] One of the important tasks of an automated manufacturability evaluator is to check for any design violations and provide redesign...
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