... SEPICIndexhttp://ece-www.colorado.edu/~pwrelect/book/contents/TOC2.html (2 of 2) [25/04/2002 16:42:28] Fundamentals of Power Electronics Table of Contents Fundamentals of Power ElectronicsR. W. EricksonTable of ContentsBack 1. Introduction1.1. ... designhttp://ece-www.colorado.edu/~pwrelect/book/contents/TOC.html (6 of 11) [25/04/2002 16:42:25] Fundamentals of Power Electronics Table of Contents Chapter titles only Fundamentals of Power ElectronicsR. W. EricksonTable of ContentsChapter ... of 11) [25/04/2002 16:42:25] Fundamentals of Power Electronics http://ece-www.colorado.edu/~pwrelect/book/copies.html (2 of 2) [25/04/2002 16:42:07] Fundamentals of Power Electronics Table of...
... aspect of any design. A wrong choice of material may lead to failure, over or undersized product or expensive items. The choice of materials is thus dependent on suitable properties of the ... arising out of a defective product. Use of a factor of safety only in design does not ensure its overall reliability. Maintenance, cost and aesthetics Maintenance and safety are often interlinked. ... Instructional Objectives At the end of this lesson, the students should have the knowledge of • Basic concept of design in general. • Concept of machine design and their types. • Factors...
... that the state of stress at a point can be given by six stress components only. It is important to understand the implication of this state of stress at a point in the design of machine elements ... loaded brass strut hinged at both ends is 1m long and is of a square cross-section of sides 20mm. What should be the dimension of a steel strut of the same length and subjected to the same axial ... aluminium shaft of 100mm diameter by a tubular steel shaft of the same outside diameter transmitting the same torque and having the same angle of twist. Find the inner radius of the steel bar...
... coupling Design details of such couplings will be discussed in the next lesson. The main features of the design are essentially (a) Design of bolts (b) Design of hub (c) Overall design ... students should have the knowledge of • The function of couplings in machinery. • Different types of couplings: rigid and flexible couplings. • Types of rigid couplings such as sleeve, clamp, ... angularmisalignment 5.1.2.1.1.F- Types of misalignments in shafts 5.1.2.1.1 Sleeve coupling One of the simple type of rigid coupling is a sleeve coupling which consists of a cylindrical sleeve keyed...
... Inner diameter of spring, . iD32mm= 3900 30040N/mm 40 10 N/m15−===×Spring rate, k Once the value of stiffness is known, then the value of number of active turns, N of the spring ... Modification of Soderberg diagram • Estimation of material properties for helical spring • Types of helical springs • Design considerations for buckling and surge. 7.2.1 Design of helical ... 4 6−=+=−k So the value of mean shear stress, and the value of stress amplitude, Estimation of material properties: As no specific use of the spring is mentioned in the...
... the limiting values of the angle of twist of a shaft? Version 2 ME , IIT Kharagpur G = shear modulus of elasticity Ip = Polar moment of inertia The limiting value of θ varies from 0.3 ... can be shown that the frequency of free vibration of a non-rotating shaft is same as its critical speed. The equation of fundamental or lowest critical speed of a shaft on two supports is, ... any of the following methods, Integration method Moment-area method, or Energy method (Theorem of Castigliano) Now, the deflection, δ= f (applied load, material property, moment of inertia...
... Considering the equilibrium of a cut out section the circumferential stress σθ and longitudinal stress σz can be found. Consider a section of thin cylinder of radius r, wall thickness t ... a sphere of internal radius r subjected to an internal pressure p as shown in figure-9.1.1.3. The circumferential and longitudinal stresses developed on an element of the surface of the sphere ... procedure of a pressure vessel. We consider a mild steel vessel of 1m diameter comprising a 2.5 m long cylindrical section with hemispherical ends to sustain an internal pressure of ( say)...
... i Fundamentals of OOP and DataStructures in Java Fundamentals of OOP and DataStructures in Java is a text for an introductory course on classical data structures. Part One of the book presents ... iii Fundamentals of OOP and DataStructures in JavaRichard WienerUniversity of Colorado, Colorado SpringsLewis J. PinsonUniversity of Colorado, Colorado Springs Page i Fundamentals of ... principles of OOP and GUI programming, this book takes the unique path of presenting the fundamental issues ofdatastructures within the context of paradigms that are essential to today's professional...
... picture +• Shape/direction of data/ evidence +• Intuition judgementOrder of frequency:Comfort 42%Speed 35%Price 29%Image 28%Margin of errorNFrequency of issue ARobustnessassessed ... sureyour data are internally consistent with other data in the dataset. Forexample, if in a survey for an airline we ®nd that over three-quarters of customers were delighted with the quality of the ... aspects of the way we make sense of marketing information. So, at the risk of high vulgarisation and trivialisa-tion of a vast topic, below we have outlined seven key insights about thenature of...
... several of the datastructures we examinein this book.While this use of generic programming can be quite useful, C# provides alibrary of generic datastructures already ready to use. These data structures are ... 2007 20:59PrefaceThe study ofdatastructures and algorithms is critical to the development of the professional programmer. There are many, many books written on data structures and algorithms, ... ofdata structures and algorithms using C#. The datastructures we use in this book are foundin the .NET Framework class library System.Collections. In this chapter, wedevelop the concept of...
... range of a linear transformation L of U into V is the set of vectorsv of V into which some vector u of U is mapped, i.e., the range of L isdefined as the set of v = Lu, for every vector u of U.Thekernel ... withrespect to the bases BUand BVis composed of the n real coefficients lij of the representation of the image of the jth vector of BUin terms of BV.The notation introduced in eq.(2.10) ... {vi}n1is called the dimension of V.Notethatany set of n linearly independent vectors of V can play the role of a basis of this space, but once this basis is defined, the set of real coefficients {αi}n1for...
... assessment of its risk?Your firm, Agrico Products, is considering the purchase of a tractor that will have a netcost of $36,000, will increase pre-tax operating cash flows before taking account of de-preciation ... branch of the decision tree is equivalent to a time line. Thus,the top line, which describes the payoffs under good conditions, has a cash flow of Ϫ$5 million at t ϭ 0 and positive cash flows of $2.5 ... the standard deviation of theNPV, and the coefficient of variation of the NPV?ST-2New project analysisST-1Key termsSELF-TEST PROBLEMS573Flexibility OptionsIt is often worth spending money...
... of the converted power that is defined asmectpω= (13)in terms of other known powers and derivation of the equation for motion of rotating massesin terms of known parameters and inputs of ... the sense of rms values in ACmachines, i.e. in the sense of average values in DC machines). Note that in generationdirection of the speed of rotation coincides with the direction of the mechanical ... Levi, 2002102.4 Summary of the mathematical modelAny rotating electric machine, regardless of the actual structure of the stator and rotor andregardless of the number of windings, is completely...