Tài liệu Fundamentals Of Power Electronics P1 pdf

... http://ece-www.colorado.edu/~pwrelect/book/SecEd.html (6 of 6) [25/04/2002 16:42:05] Fundamentals of Power Electronics Fundamentals of Power Electronics Second Edition Up To instructors of Power Electronics courses: how to ... (1 of 2) [25/04/2002 16:42:07] Fundamentals of Power Electronics http://ece-www.colorado.edu/~pwrelect/book/copies.html (2 of 2) [...

Ngày tải lên: 13/12/2013, 01:15

... factor) definition of, 546-550 of bridge rectifier, single phase, 566 of peak detection rectifier, 548-550 of phase-controlled rectifier, three phase, 573 Power sink element (see Power source element) Power ... 279-282 inverted forms, 272 of real pole, 266-268 of real zero, 269 of RHP zero, 270 Phase control of resonant converters, 659 of three-phase rectifiers, 570-575...

Ngày tải lên: 13/12/2013, 01:15

... 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 ... approach at every stage of the design is needed. Use of factor of safety in designing the elements is to optimize the design to avoid over- design for reliability. 1.1.7 Summa...

Ngày tải lên: 17/12/2013, 11:15

... display) Fundamentals of Digital Electronics 10-6 © National Instruments Corporation Lab 10 Seven-Segment Digital Displays Notes © National Instruments Corporation 11-1 Fundamentals of Digital Electronics Lab ... XOR Gate Clock QDQDQDQDQD QD CCCCCC 12 4356 Fundamentals of Digital Electronics March 1998 Edition Part Number 321948A-01 Fundamentals of Digital Electronics...

Ngày tải lên: 13/12/2013, 01:15

... 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 ... 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...

Ngày tải lên: 17/12/2013, 11:15

Ngày tải lên: 23/12/2013, 00:15

... the end of this lesson, the students should have the knowledge of • The function of couplings in machinery. • Different types of couplings: rigid and flexible couplings. • Types of rigid ... 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) Over...

Ngày tải lên: 23/01/2014, 04:20

... Inner diameter of spring, . i D32mm= 3 900 300 40N/mm 40 10 N/m 15 − ===× Spring rate, k Once the value of stiffness is known, then the value of number of active turns, N of the spring ... 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 mentio...

Ngày tải lên: 23/01/2014, 04:20

... Where, θ = angle of twist L = length of the shaft Version 2 ME , IIT Kharagpur G = shear modulus of elasticity I p = 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 tw...

Ngày tải lên: 23/01/2014, 05:20

... Considering the equilibrium of a cut out section the circumferential stress σ θ and longitudinal stress σ z 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...

Ngày tải lên: 23/01/2014, 05:20