fundamentals of logic design with vhdl

... S 6 have NS S 0 ) II. (1,2) (3,4) (5,6) (S 1 & S 2 are NS of S 0 ; S 3 & S 4 are NS of S 1 ; and S 5 & S 6 are NS of S 4 ) III. (0,1,4,6) (2,3,5) Figure 1-18(a) State Assignment ... XY'Cin' + XYCin = X + Y + Cin Figure 1-9 Elimination of 1-Hazard 0 1 0 1 10 1 0 10 01 00 11 10 A BC C B A F A F = AB' + BC + AC (c) Network with hazard removed C E B A D F 0 1 0 1 10 1 0 10 01 00 11 10 A BC F ... default end DFF; architecture SIMPLE of DFF is begin process (CLK) process is executed when CLK changes begin if CLK = '1' then rising edge of clock Q <= D after 10 ns; QN <=...

Ngày tải lên: 12/12/2013, 09:16

Ngày tải lên: 19/03/2014, 21:20

... values of C’s are tabulated in Table 1 below. Table 1. Values of C for various types of joints Type of joint Value of C Metal to metal joint with through bolt 0.00 – 0.10 Soft copper gasket with ... should learn: ã Design of a bolted joint with fluctuating loading ã Design of welded joints with variable loading 1. Variable loading in mechanical joints: Machine parts are often subjected ... with variable loading: Because of many intricacies involved in design of a welded joint, codes are extensively used to design such joint when it experiences variable loading. The value of...

Ngày tải lên: 18/10/2013, 09:15

... Nomenclature of Open Belt Drive d L - Diameter of the larger pulley d S – Diameter of the smaller pulley α L - Angle of wrap of the larger pulley α S – Angle of wrap of the smaller ... What are the advantages of a belt drive? A1. The advantages of a belt drive are that, it can absorb a good amount of shock and vibration. It can take care of some degree of misalignment between ... velocity of the pulley m is the mass of the belt of unit length, m = btρ (13.1.4) where, b is the width, t is the thickness and ρ is the density of the belt material. From the equation of...

Ngày tải lên: 25/10/2013, 12:15

... Coefficient of friction of the belt material Coefficient of friction for a pair of belt material and pulley material is provided in design data book. 13.2.4 Modification of Belt stress ... The decision of the material to be used depends on the type of service. No. of ply and Thickness Ply is the number of layers as indicated earlier. Therefore, the number of ply is decided ... At the end of this lesson, the students should be able to understand: ã Features of flat belt drives ã Flat belt materials ã Flat belt stresses and its specifications ã Types of design factors...

Ngày tải lên: 25/10/2013, 12:15

... side of the given range. Another restriction of choice of belt section arises from the view point of minimum pulley diameter. If a belt of higher thickness (higher section) is used with ... from the design table, is the required belt length. From section (13.3.7) above, the design power and modified power rating of a belt can be obtained. Therefore, Design Power Number of belts Modified ... end of this lesson, the students should be able to understand: ã Features of V-belt drives ã Nomenclature of V-belt, types of V-belt section and its power rating ã Selection procedure of...

Ngày tải lên: 29/10/2013, 19:15

... hydrodynamic theory of lubrication Petroff (1883) carried out extensive experimental investigation and showed the dependence of friction on viscosity of lubricant, load and dimensions of the journal ... of bearings Comparison of bearing friction characteristics Basics of hydrodynamic theory of lubrication Design methods for journal bearings 14.1.1 Brief overview of bearings Bearings ... of design zone Coefficient of friction, f Bearing characteristic number, N p μ Boundary lubrication Hydrodynamic lubrication A B C D Design lower limit Fig. 14.1.5 Results of...

Ngày tải lên: 29/10/2013, 19:15

Ngày tải lên: 25/11/2013, 11:38

... standard of library std: Defines BIT, BOOLEAN, INTEGER, and REAL data types.  Package std _logic_ 1164 of library ieee: Defines STD _LOGIC and STD_ULOGIC data types.  Package std _logic_ arith of library ... conv_signed(p, b), and conv_std _logic_ vector(p, b).  Packages std _logic_ signed and std _logic_ unsigned of library ieee: Contain functions that allow operations with STD _LOGIC_ VECTOR data to be performed ... 0) OF STD _LOGIC; 1D array TYPE array1 IS ARRAY (0 TO 3) OF row; 1Dx1D array TYPE array2 IS ARRAY (0 TO 3) OF STD _LOGIC_ VECTOR(7 DOWNTO 0); 1Dx1D TYPE array3 IS ARRAY (0 TO 3, 7 DOWNTO 0) OF...

Ngày tải lên: 12/12/2013, 11:16

... building design, process design, bridge design, clothing or fashion design and so on. Here we are concerned with machine design. We now define a machine as a combination of resisting bodies with ... fail in use within its designed life. There is no single answer to this and an overall safe design approach at every stage of the design is needed. Use of factor of safety in designing the ... Q.4: Discuss ‘factor of safety ‘ in view of the reliability in machine design. A.4: Reliability of a designed machine is concerned with the proper functioning of the elements and the machine...

Ngày tải lên: 17/12/2013, 11:15

... 1) Design of machine elements by M.F.Spotts, Prentice hall of India, 1991. 2) Machine design- an integrated approach by Robert L. Norton, Pearson Education Ltd. 3) A textbook of machine design ... and brass. Bronze is a Cu-Sn alloy with the typical composition of 88% Cu, 10% Sn and 2% Zn. Brass is a Cu-Zn alloy with the typical composition of red brass of 85% Cu , 15% Zn. Q.6: List at ... springs etc. 1.2.8 Summary of this Lesson In this lesson the properties and uses of different types of metals and non- metals, generally used in machine design, are discussed. Primarily...

Ngày tải lên: 17/12/2013, 11:15

... two mating parts fit with each other, the nature of fit is dependent on the limits of tolerances and fundamental deviations of the mating parts. The nature of assembly of two mating parts is ... The nature of assembly of two mating parts is defined by three types of fit system, Clearance Fit, Transition Fit and Interference Fit. Clearance Fit: In this type of fit, the shaft of largest ... or manufacture a product range. The range of operational speeds of a machine or the range of powers of a typical machine may be also as per a series of preferred numbers. Version 2...

Ngày tải lên: 17/12/2013, 11:15

... 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 ... bending of beams We consider that a plane section remains plane after bending- a basic assumption in pure bending theory. If the rotation of cd with respect to ab is d φ the contraction of a ... 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...

Ngày tải lên: 17/12/2013, 11:15

... version of the program, version of compiler, optimizing level of compiled code, version of operating system, amount of main memory, number and types of disks, version of the CPU—all of which ... 1 Fundamentals of Computer Design packaging, power, and cooling. Optimizing the design requires familiarity with a very wide range of technologies, from compilers and operating systems to logic design ... Chapter 1 Fundamentals of Computer Design Assume that the two design alternatives are to reduce the CPI of FPSQR to 2 or to reduce the average CPI of all FP operations to 2. Compare these two design...

Ngày tải lên: 22/12/2013, 10:16

... At the end of this lesson, the student should be able to understand ã Elements of force system at a beam section. ã Superposition of axial and bending stresses. ã Transformation of plane stresses; ... section X-X, Q the first moment of area, I the moment of inertia, t the width at which transverse shear is calculated, J the polar moment of inertia and r the radius of the circular cross-section. ... beam with a central vertical load P and an axial compressive load F. At any section a compressive stress of π 2 4F d and a bending stress of My I are produced. Here d is the diameter of the...

Ngày tải lên: 25/12/2013, 23:18

... strains may be derived in terms of these displacements. 2.3.2 Normal strains Consider an element AB of length δx ( figure-2.3.2.1). If displacement of end A is u, that of end B is u u x ∂ +δ ∂ x ... discussed. 2.3.9 Reference for Module-2 1) Mechanics of materials by E.P.Popov, Prentice hall of India, 1989. 2) Mechanics of materials by Ferdinand P. Boer, E. Russel Johnson, J.T Dewolf, ... principal strains in terms of principal stresses as [] [] [] 1123 223 3312 1 () E 1 () E 1 () E ε= σ−νσ+σ ε= σ−νσ+σ ε= σ−νσ+σ 1 From the point of view of volume change or dilatation...

Ngày tải lên: 25/12/2013, 23:18

... based on a particular failure criterion. Theories of failure are essentially a set of failure criteria developed for the ease of design. In machine design an element is said to have failed if it ... Summary of this Lesson Different types of loading and criterion for design of machine parts subjected to static loading based on different failure theories have been demonstrated. Development of ... properties. 3.1.3 Theories of failure When a machine element is subjected to a system of complex stress system, it is important to predict the mode of failure so that the design methodology may...

Ngày tải lên: 25/12/2013, 23:18

Ngày tải lên: 25/12/2013, 23:18

Ngày tải lên: 25/12/2013, 23:18

Ngày tải lên: 25/12/2013, 23:18