Magnetic Bearings Theory and Applications Part 7 docx

... states in conventional and unconventional superconductors. Reviews of Modern Physics, Vol. 78 , No. 2, (9 May2006), pp. 373 –433, ISSN 1539- 075 6 Superconductivity – Theory and Applications 152 ... permanent magnet and the superconductor. Superconductivity – Theory and Applications 162 Fig. 7. Coordinate system of the PM-SC configuration. The supercondu...

Ngày tải lên: 19/06/2014, 21:20

... K. Adachi, F. Adachi and M. Nakagawa, “On cellular MIMO spectrum efficiency,” IEEE Vehicular Technology Conference, pp. 4 17- 421, October 20 07. MIMO Systems, Theory and Applications 230 Note ... users. MIMO Systems, Theory and Applications 228 sssn H h H hs yWyIssCsCyhh ss =+== −12 )(]|[E ˆ σ (66) and sss hshyh sCWCC − = | ( 67) where h ˆ indica...

Ngày tải lên: 20/06/2014, 04:20

... publication@sciyo.com Magnetic Bearings, Theory and Applications, Edited by Boštjan Polajžer p. cm. ISBN 978-953-307 -14 8-0 Magnetic Bearings, Theory and Applications4 3. System Identification 3 .1 System ... Lemarquand and Guy Lemarquand A rotor model with two gradient static field shafts and a bulk twined heads system 11 7 Hitoshi Ozaku Contents Design and im...

Ngày tải lên: 20/06/2014, 06:20

... step reference and step disturbance with controllers C lead (s), C(s), C 1 (s), and C 2 (s), and the designed FLC. Magnetic Bearings, Theory and Applications1 2 Fig. 11. Magnetic bearing ... controller C 2 (s). Magnetic Bearings, Theory and Applications1 6 8 .2 Comparison of Step and Disturbance Rejection Responses Figure 16 and Figure 17 show the...

Ngày tải lên: 20/06/2014, 06:20

... pair of electromagnets in the x axis Magnetic Bearings, Theory and Applications3 0 Fig. 3. B-H characteristic for laminated ferromagnetic material 33 0 -35 -A5 The Poisson's equation ... of a pair of electromagnets in the x axis Magnetic Bearings, Theory and Applications2 4 Figure 32 and Figure 33 show the displacement sensor output and the controller o...

Ngày tải lên: 20/06/2014, 06:20

... shown in Figs. 12 and 14. Magnetic Bearings, Theory and Applications4 2 The development and maintenance cost of vibration isolation system should be lowered in order to expand the application ... small and the Magnetic Bearings, Theory and Applications4 0 6. References Antila, M., Lantto, E. & Arkkio, A. (1998). Determination of forces and linearized parame...

Ngày tải lên: 20/06/2014, 06:20

... sum of these torques, and the axial force F is the difference of the two attractive forces. Fig. 5. Define of coordinates Magnetic Bearings, Theory and Applications5 0 3.4 Stiffness Adjustment ... tabletop and ground vibrations Magnetic Bearings, Theory and Applications5 6 Fig. 10. Static characteristics of the isolation Fig. 11. Dynamic characteristics of the i...

Ngày tải lên: 20/06/2014, 06:20

... 0 3 2 sd f sl L L L g    (4) and mutual inductance 0 3 2 sd m L L g   (5) Magnetic Bearings, Theory and Applications6 6 From (2) to (5), the magnetic co-energy in the air gap for ... stiffness of the motor, and 4 m Fd f K K i is the force gain. Magnetic Bearings, Theory and Applications6 4 To obtain a mathematical model of the AGBM, the axial forc...

Ngày tải lên: 20/06/2014, 06:20

... 10, No. 6, Dec. 2005 pp. 666 – 674 . Magnetic Bearings, Theory and Applications8 4 Magnetic Bearings, Theory and Applications8 6 Permanent magnet bearings for rotating shafts are constituted of ... only a stiffness on this degree of freedom and no damping. * valerie.lemarquand@ieee.org † guy.lemarquand@ieee.org 5 Magnetic Bearings, Theory and Applications9 0 F [ φ...

Ngày tải lên: 20/06/2014, 06:20

... Indeed, Fig.19 and 20 show the force and the stiffness for a fixed air gap when the magnet height varies. Magnetic Bearings, Theory and Applications1 00 0.5 1.0 1.5 2.0 2.5 3.0 0 20 40 60 80 100 120 140 z  mm  Axial ... height. This means that increasing the magnet height, and consequently Magnetic Bearings, Theory and Applications9 8 0.5 1.0 1.5 2.0 2.5 3.0 0 20 40...

Ngày tải lên: 20/06/2014, 06:20

... & Yonnet, J. ( 199 8). A partially passive magnetic suspension for a discoidal wheel., J. Appl. Phys. 64(10): 599 7– 599 9. Meeks, C. ( 197 4). Magnetic bearings, optimum design and applications, First ... & Yonnet, J. ( 199 8). A partially passive magnetic suspension for a discoidal wheel., J. Appl. Phys. 64(10): 599 7– 599 9. Meeks, C. ( 197 4). Magnetic bearings, optim...

Ngày tải lên: 20/06/2014, 06:20

... of test (a) Standstill, (b) Unstable rotation, ( c) High speed rotation, (d) Broken Magnetic Bearings, Theory and Applications1 26 After the acrylic ring of the rotary mechanism part of the rotor, ... core which one plate 5mm wide and 10mm long and the wire about 2m long. U-shaped and T-shaped coils were used with core which some plates 10mm wide and 50mm long and the...

Ngày tải lên: 20/06/2014, 06:20

... shafts, Physica C, Vol.468, pp 2125 - 2127 John R Hull. (2000). Superconducting bearings, Supercond. Sci. Technol, Vol.13, pp.1-5 Magnetic Bearings, Theory and Applications1 30 Fig. 21. Result ... Magnetic Bearings, Theory and Applications1 26 After the acrylic ring of the rotary mechanism part of the rotor, an aluminium ring with 8 holes ... its falling. Magn...

Ngày tải lên: 21/06/2014, 02:20

... Control, Addison-Wesley Longman, Inc., 1998. Magnetic Bearings, Theory and Applications2 4 Figure 32 and Figure 33 show the displacement sensor output and the controller output, respectively, ... 17 and 23, 19 and 25, 21 and 27. The step and step disturbance rejection responses with the designed FLC exhibit smaller steady-state error and overshoot as shown in Figu...

Ngày tải lên: 21/06/2014, 02:20

... displacement of the suspended mass is very small and the Magnetic Bearings, Theory and Applications5 2 The vibration isolation system is developed using magnetic levitation technique in such a way ... both tabletop and ground vibrations Magnetic Bearings, Theory and Applications4 2 The development and maintenance cost of vibration isolation system should be lowered...

Ngày tải lên: 21/06/2014, 02:20