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Hydroelectric Power Plants Mechanical Design
File : pdf, 4 MB, 124 pages
military manual
TOC
1 Introduction
Purpose
Applicability
References
Limitations
Contents
Design Procedures
Other Design Information
Deviations
General Design Practices
Safety Provisions
2 Turbines and Pump Turbines
General
Francis-Type Turbines
Francis-Type Pump Turbines
Kaplan-Type Turbines
3 Generators and Motor-
Generators
Turbine Considerations
Handling Provisions
Service Systems
4 Governors
Considerations
5 Penstock Shutoff Valves at the
Powerhouse
Valve Requirement
Valve Selection
6 Cranes and Hoists
Cranes
Crane Lifting Accessories
Hoists
7 Elevators
Justification
Location
Size, Type
Speed .
Control
Design
Procurement
8 Engine-Generator Set
Location
Engine
Exhaust Provisions
Cooling
Fuel System
Installation
9 Maintenance Shop
Shop Room
Equipment Selection
Shop Layout
Drawing
10 Water Supply Systems
Generator and Turbine Cooling Water System
Transformer Cooling Water
Fire Protection Water
Potable Water System
Raw Water System
11 Unwatering and Drainage System
Unwatering System
Drainage System
Equalizing (Filling)
Venting
12 Oil Systems
System Requirements
Oil Storage Room
Oil Storage Tanks
Pumps
Oil Piping
Oil Purifiers
Alternate Systems
13 Compressed Air Systems
Service Air System
Brake Air System
Governor Air System
Draft Tube Water Depression System
Miscellaneous...
February 6, 2010
Microscopic Theory of Superconductivity – Lecture Notes on Physics
File : pdf, 609 KB, 65 pages
Lecture Notes by Prof. Helmut Eschrig
TOC
1 The Solid as a Quantum Many-Body System
1.1 The Coulomb Hamiltonian of the Solid
1.2 Reduced Density Matrices and Densities
1.3 Correlation Functions
2 Green’s Functions
2.1 Spectral Representation
2.2 Equation of Motion
2.3 Complex Time
2.4 The Interaction Picture
2.5 Wick’s Theorem
2.6 Feynman Diagrams
2.7 The Self-Energy
2.8 Thermodynamic Quantities
3 Green’s Functions in the Superconducting State
3.1 The Bogoliubov-Valatin Transformation
3.2 The Nambu Structure
3.3 Green’s Functions and Vertices for the Electron-Nucleon System
4 Split-off of High-Energy Parts
4.1 Classification of Primary Diagrams
4.2 Migdal’s Theorem
4.3 Leading Order Self-Energies
5 The Low Energy Equations
5.1 The Quasi-Particle Renormalization
5.2 The Electron-Phonon Self-Energy
5.3 The Electron-Electron Self-Energy
5.4 Bloch Function...
February 4, 2010
Theory of Superconductivity – Lecture Notes on Physics
File : pdf, 570 KB, 58 pages
Lecture Notes by Prof. Helmut Eschrig
TOC
1 INTRODUCTION
2 PHENOMENA, LONDON THEORY
2.1 Phenomena
2.2 London theory
2.3 Gauge symmetry, London gauge
3 THE THERMODYNAMICS OF THE PHASE TRANSITION
3.1 The Free Energy
3.2 The Free Enthalpy
3.3 The thermodynamic critical field
3.4 Heat capacity jump
4 THE GINSBURG-LANDAU THEORY; TYPES OF SUPERCONDUCTORS
4.1 The Landau theory
4.2 The Ginsburg-Landau equations
4.3 The Ginsburg-Landau parameter
4.4 The phase boundary
4.5 The energy of the phase boundary
5 INTERMEDIATE STATE, MIXED STATE
5.1 The intermediate state of a type I superconductor
5.2 Mixed state of a type II superconductor
5.3 The flux line in a type II superconductor
6 JOSEPHSON EFFECTS
6.1 The d.c. Josephson effect, quantum...
February 3, 2010
A Technical Tutorial on Digital Signal Synthesis
File : pdf, 902 KB, 122 pages
by Analog Devices
Contents :
1. Fundamentals of DDS technology
Theory of operation
Circuit architecture
Tuning equation
Elements of DDS circuit functionality and capabilities
DAC integration
Trends in functional integration
2. Understanding the Sampled Output of a DDS Output
Implications of the Nyquist Theorum
Aliased images in the output
Source of aliased images
Calculating the occurrence of aliased images
Quantization considerations
Sin(X)/X response
AC and DC linearity of the output
3. Frequency/phase-hopping Capability of DDS
Calculating the output tuning word
Determining maximum tuning resolution
Determining maximum tuning speed
Understanding the DDS control interface
Pre-programming profile registers
4. The DDS Output Spectrum
The effect of DAC resolution on spurious performance
The effect of oversampling on spurious performance
The effect of...
February 2, 2010
Tutorials on Life Cycle Costing and Reliability Engineering
File : pdf, 1.3 MB, 297 pages
TOC
Chapt 1 Reliability Maintenance and Logistic Support - Introduction
1.1. INTRODUCTION
1.2. THE LIFE CYCLE OF A SYSTEM
1.3. CONCEPT OF FAILURE
Chapt 2 Probability Theory
2.4. PROBABILITY TERMS AND DEFINITIONS
2.5. ELEMENTARY THEORY OF PROBABILITY
2.5.1 Axioms of Probability
2.5.2 Rules of Probability
2.5.3 Joint Events
2.5.4 Conditional Probability
2.6. PROBABILITY AND EXPERIMENTAL DATA
2.7. PROBABILITY DISTRIBUTION
2.8. RANDOM VARIABLE
2.8.1 Types of random variables
2.9. THE PROBABILITY DISTRIBUTION OF RANDOM VARIABLE
2.9.1 Functional Method
2.9.2 Parametric Method
2.10. DISCRETE THEORETICAL PROBABILITY DISTRIBUTIONS
2.10.1 Bernuolli Trials
2.10.2 The Binomial Distribution
2.10.3 The Poisson Distribution
2.11. CONTINUOUS THEORETICAL PROBABILITY DISTRIBUTIONS
2.11.1 Exponential Distribution
11.1.1 Memory-less Property of Exponential Distribution
2.11.2 Normal Distribution (Gaussian Distribution)
2.11.3 Lognormal Distribution
2.11.4 Weibull Distribution
Chapt 3...
February 1, 2010
Topology and Geometry for Physics – Lecture Notes on Physics
Lecture Notes by Prof. Helmut Eschrig
File : pdf, 2,2 MB, 298 pages
TOC
Introduction
1 Topology
1.1 Basic De¯nitions
1.2 Base of Topology, Metric, Norm
1.3 Derivatives
1.4 Compactness
1.5 Connectedness, Homotopy
1.6 Topological Charges in Physics
2 Manifolds
2.1 Charts and Atlases
2.2 Smooth Manifolds
2.3 Tangent Spaces
2.4 Vector Fields
2.5 Mappings of Manifolds, Submanifolds
2.6 Frobenius' Theorem
2.7 Examples from Physics
3 Tensor Fields
3.1 Tensor Algebras
3.2 Exterior Algebras
3.3 Tensor Fields and Exterior Forms
3.4 Exterior Di®erential Calculus
4 Integration, Homology and Cohomology
4.1 Prelude in Euclidean Space
4.2 Chains of Simplices
4.3 Integration of Di®erential Forms
4.4 De Rham Cohomology
4.5 Homology and Homotopy
4.6 Homology and Cohomology of Complexes
4.7 Euler's Characteristic
4.8 Critical Points
4.9 Examples from Physics
5 Lie Groups
5.1 Lie Groups and Lie...
January 30, 2010
Acoustic and Vibration Animations
Gif image animations about acoustic and vibration by Dan Russel, PhD
Animations :
Airborne Sound Waves and Sources
Basic Wave Phenomena
* What is a Wave?
* Wave Motion in Space and Time
* Superposition of Two Waves
* Fourier Decomposition
* Phase changes upon reflection from hard, soft, and mixed boundaries
* Refraction of Sound Waves
* The Doppler Effect
Sound Waves and Radiation from Sources
* Longitudinal and Transverse Waves
* Sound Fields Radiated by Simple Sources
* Sound Radiation from Cylindrical Radiators
* Sound field radiated by a Tuning Fork
* The Baffled Piston
More Complicated Wave Phenomena
* Evanescent Modes in Waveguides
* Waves in Dispersive Media
* Examples of Dispersive Waves
* Collision Between...
January 29, 2010
Maxima Software – Computer Algebra System
Maxima software is useful for manipulation of symbolic and numerical expressions, including differentiation, integration, Laplace transforms, Taylor series, ordinary differential equations, polynomials, lists, vectors, matrices, tensors and systems of linear equations and sets. This software capable of resulting high precision numeric solution y using exact fractions, variable precision floating point numbers and arbitrary precision integers.
The Maxima source code can be compiled on many systems, including Windows, Linux, and MacOS X.
Screenshot
[caption id="attachment_819" align="alignnone" width="639" caption="maxima software"][/caption]
[caption id="attachment_817" align="alignnone" width="570" caption="maxima software"][/caption]
Download : link
Documentation and Tutorial : Read More »
January 27, 2010
Lecture Notes of Component Design
by Prof. Lawrence E. Carlson
Contents : lectures, assignment, question, workshop and solutions
Lecture Topics :
Course introduction
Factor of safety
Stress
Shear, bearing & tearout
Bending stress
Beam deflection, torsion
Combined stresses Spring rates
Columns
Static failure theories
Fatigue failure
Stress concentrations
Fluctuating load fatigue
Shafts - intro
Shaft vibration, couplings
Bearings
MID-TERM EXAM
Springs
Spur gears
Gear trains
Spur gear design
Other gears
WIDE RIGHT COMPETITION
Threaded fasteners
Fatigue of fasteners
Fastener groups, welding
Clutches & brakes
Design for Manufacturability
Final exam review
Workshop :
1-Tensile rod design
2-Mohr's circles
3-Eccentric pin joint
4-Hollow shaft bending
5-Beam deflection
6-Combined stresses
7-Compressive members
8-Static factor of safety
9-Fatigue strength
10-Stress concentrations
11-Fluctuating stress
12-Shaft key factor of safety
13-Shaft design (fatigue)
14-Ball bearing selection
15-Compression spring
16-Spring fatigue
17-Gearing basics
18-Truck transmission
19-Planetary gears
20-Bevel gears
21-Fastener stiffness
22-Fastener fatigue
23-Welded connections
24-Disk clutch design
Download : ...
January 23, 2010
A ProblemText in Advanced Calculus
File : pdf, 2.7 MB, 381 pages
by John M. Erdman
TOC
Chapt 1. INTERVALS
1.1. DISTANCE AND NEIGHBORHOODS
1.2. INTERIOR OF A SET
Chapt 2. TOPOLOGY OF THE REAL LINE
2.1. OPEN SUBSETS OF R
2.2. CLOSED SUBSETS OF R
Chapt 3. CONTINUOUS FUNCTIONS FROM R TO R
3.1. CONTINUITY—AS A LOCAL PROPERTY
3.2. CONTINUITY—AS A GLOBAL PROPERTY
3.3. FUNCTIONS DEFINED ON SUBSETS OF R
Chapt 4. SEQUENCES OF REAL NUMBERS
4.1. CONVERGENCE OF SEQUENCES
4.2. ALGEBRAIC COMBINATIONS OF SEQUENCES
4.3. SUFFICIENT CONDITION FOR CONVERGENCE
4.4. SUBSEQUENCES
Chapt 5. CONNECTEDNESS AND THE INTERMEDIATE VALUE THEOREM
5.1. CONNECTED SUBSETS OF R
5.2. CONTINUOUS IMAGES OF CONNECTED SETS
5.3. HOMEOMORPHISMS
Chapt 6. COMPACTNESS AND THE EXTREME VALUE THEOREM
6.1. COMPACTNESS
6.2. EXAMPLES OF...
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