A073 theory and design of bridges
A073 theory and design of bridges
... Theory and Design of Bridges Petros P Xanthakos Copyright © 1994 John Wiley & Sons, Inc tailieuxdcd@gmail.com ... tailieuxdcd@gmail.com tailieuxdcd@gmail.com tailieuxdcd@gmail.com tailieuxdcd@gmail.com Theory and Design of Bridges Petros P Xanthakos Copyright © 1994 John Wiley & Sons, Inc tailieuxdcd@gmail.com
Ngày tải lên: 31/10/2016, 21:39
Theory and Design of Electrical and Electronic Circuits
... Controllers of the State in a System Bibliography Theory and Design of Electrical and Electronic Circuits _ Introduction Spent the years, the Electrical and Electronic ... Theory and Design of Electrical and Electronic Circuits Index Introduction Chap 01 Generalities Chap 02 Polarization of components Chap 03 Dissipator of heat Chap 04 Inductors...
Ngày tải lên: 23/10/2013, 16:15
Electronics - Theory and Design of Electrical and Electronic Circuits
... Controllers of the State in a System Bibliography Theory and Design of Electrical and Electronic Circuits _ Introduction Spent the years, the Electrical and Electronic ... Theory and Design of Electrical and Electronic Circuits Index Introduction Chap 01 Generalities Chap 02 Polarization of components Chap 03 Dissipator of heat Chap 04 Inductors...
Ngày tải lên: 27/10/2013, 16:15
Theory and Design of CNC Systems Part 14 potx
... classification of continuous blocks, 132 141 clock manager, 323 closed loop, 18, 19 closed-type CNC system, 387 CMM, 4, 447 448 CNC, 7, 8, 21, 22 CNC architecture design, 315 CNC control loop, 17 CNC system ... 336 deceleration, 107– 114 derivative control, 164 derivative controller, 164 derivative gain, 164 design of PC-NC and open CNC, 353 design of system kernel, 361...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 1 pps
... 10 7 10 7 10 8 10 9 11 2 12 1 12 6 12 8 12 9 13 2 14 2 14 4 14 5 14 7 15 2 15 5 Contents xiii PID Control System 5 .1 Introduction ... 15 7 15 7 15 8 16 0 16 1 16 2 16 6 17 1 17 9 17 9 18 2 18 3 18 5 Numerical Control Kernel 6 .1 Introduction ... of two parts with a total of 11 chapters: Part I is composed of Chapters 1 6 on the principle and...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 2 doc
... initialized and reset Since the commands M 02 and M03 are executed last, they can be located anywhere within the last block 2. 2 .2 Main Programs and Subprograms 2. 2 .2. 1 Main program A part program ... the standard code 2. 2 Part Program 35 2. 2.1 Program Structure A part program contains the commands, called blocks, for machining a part and each block can be defined u...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 3 ppsx
... X-1.69 53 Y-.75 Z-. 235 8 F10 N120 K0 X-1.6544 Z-. 231 3 N 130 K0 X-1.5752 Z-.2225 N140 K0 X-1.40 53 Z-.2067 N150 K. 031 3 X-1 .30 31 Z-.1982 N160 K.0781 X-1.1215 Z-.1847 N300 K.90 63 X1.7085 Z-. 237 3 N310 ... Z-.2421 N320 K1 N 330 K1 N340 K1 N350 K1 N360 G01 Y-.7188 Z-. 238 Fig 2.26 NURBS-profile G-code part program The functionality of each module is given below Parser: this module i...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 4 potx
... 6 6 6 4 6 4 4 4 4 2 4 31 41 13 14 15 16 17 18 19 20 6 6 4 4 6 6 4 6 6 6 4 6 6 6 6 6 6 6 6 6 6 6 4 6 6 6 51 6 6 51 21 22 23 24 2 2 2 4 2 4 4 4 4 6 4 41 31 25 26 27 28 0 0 0 2 0 2 2 2 2 4 2 21 ... simplified as Eq 4. 44 r=R wτ )] (1 − cos w2 τ 2 w2 τ w4 τ + )}] = R[1 − 2 {1 − (1 − w τ · 2! 24 · 4! w2 τ w4 τ + )} = R{1 − 2 ( w τ · 2! 24 · 4! 2 F2 w τ ≈ τ2 so, Δ...
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 5 potx
... the line join 25 20 Y-axis (mm) 15 10 -5 -10 - 25 -20 - 15 -10 -5 X-axis (mm) Fig 4.38 Look-ahead path 10 15 155 Feedrate after Look-ahead (mm/min) 4 .5 Summary 250 0 2000 150 0 1000 50 0 0 0.2 0.4 ... speed profile of the acceleration interval in Block N1 can be obtained by Eq 4.69 and Eq 4 .55 and the speed profile of acceleration interval in Block N2 can be obtained by Eq 4....
Ngày tải lên: 11/08/2014, 20:21
Theory and Design of CNC Systems Part 6 pptx
... mention execution algorithms and implementation by pseudo-code In this chapter, only the design of NCK will be described and the overall design of the CNC system where the PLC and MMI units are included ... respectively, and it is typical that a PI control is used for the speed control of a CNC system αw and α denote the desired position and the actual position respe...
Ngày tải lên: 11/08/2014, 20:21