| 63 |
C. I. Lee
G. H. Jang |
Experimental Measurement and Simulated Verification of the Unbalanced Magnetic Force in Brushless DC Motors |
IEEE Transaction on Magnetics |
Vol.44, No.11 |
2008.11 |
| 62 |
H. T. Ahn
G. H. Jang
J. H. Chang
S. U.Chung
D. H. Kang |
Reduction of the Torque Ripple and Magnetic Force of a Rotatory Two-Phase Transverse Flux Machine Using Herringbone Teeth |
IEEE Transaction on Magnetics |
Vol.44, No.11 |
2008.11 |
| 61 |
C. J. Lee
G. H. Jang |
Distortion of magnetic field and magnetic force of a brushless DC motor due to deformed rubber magnet |
Journal of Applied Physics |
Vol.103, No.7 07F115-1~07F115-3 |
2008.04 |
| 60 |
G. H. Jang
N. K. Park
C. I. Lee
J. H. Chang
S. W.Jeong
D. H. Kang |
Reduction of the unbalanced magnetic force of a transverse flux machine by using symmetric multi-pair cores |
Journal of Applied Physics |
Vol.103, No.7 07F104-1 ~ 07F104-3 |
2008.04 |
| 59 |
D. J. Park
C. H. Kim
C. H. Jang
Y. B. Lee |
Theoretical considerations of static and dynamic characteristics of air foil thrust bearing with tilt and slip flow |
Tribology International |
Vol.41, No.4, pp.282-295 |
2008.04 |
| 58 |
G. H. Jang
C. H. Seo |
Finite-element shock analysis of an operating hard disk drive considering the flexibility of a spinning disk-spindle, a head-suspension-actuator, and a supporting structure |
IEEE Transaction on Magnetics |
Vol.43, No.9 |
2007.09 |
| 57 |
G. H. Jang
C. I. Lee |
Development of an HDD spindle motor with increased stiffness and damping coefficients by utillizing a stationary permanent magnet |
IEEE Transaction on Magnetics |
Vol.43, No.6, pp.2570-2572 |
2007.06 |
| 56 |
G. H. Jang
C. H. Seo
H. S. Lee |
Finite element modal analysis of an HDD considering the flexibility of spinning disk - spindle, head - suspension - actuator and supporting structure |
Microsystem Technologies |
Vol.13, No 8-10, pp.837-847 |
2007.05 |
| 55 |
G. H. Jang
S. J. Park
C. S. Kim
J. H. Han |
Investigation of the electromechanical variables of the spindle motor and the actuator of a HDD due to positioning and free fall |
Microsystem Technologies |
Vol.13, No 8-10, pp.797-809 |
2007.05 |
| 54 |
G. H. Jang
J. H.Yeom
M. G. Kim |
Determination of torque-speed-current characteristics of a brushless DC motor by utilizing back-EMF of non-energized phase |
JMMM |
Vols.310, pp.2790-2792 |
2007.03 |
| 53 |
G. H. Jang
M. G. Kim |
Optimal commutation of a BLDC motor by utilizing the symmetric terminal voltage |
IEEE Transaction on Magnetics |
Vol.42, No.10, pp.3473-3475 |
2006.10 |
| 52 |
D. K. Kim
G. H. Jang |
Analysis of vibration caused by ball bearing in a HDD spindle system at elevated temperature |
Key Engineering Materials |
Vols.321-323, pp.1624-1628 |
2006.09 |
| 51 |
G. H. Jang
S. H. Lee |
Determination of the dynamic coefficients of the coupled journal and thrust bearings by the perturbation method |
Tribology Letters |
Vol.22, No.3, pp.239-246 |
2006.06 |
| 50 |
G. H. Jang
C. J. Lee |
Design and control of the phase current of a brushless DC motor to eliminate cogging torque |
Journal of Applied Physics |
Vol.99, No.8 08R305-1~08R305-3 |
2006.04 |
| 49 |
G. H. Jang
S. H. Lee
H. W. Kim |
Finite element analysis of the coupled journal and thrust bearing in a computer hard disk drive |
ASME Journal of Tribology |
Vol.128 pp.335-340 |
2006.04 |
| 48 |
G. H. Jang
S. J. Park |
Sensorless detection of free-falling state of a HDD by monitoring electromechanical signal of a spindle motor |
IEEE Transaction on Magnetics |
Vol.41, No.10 pp.3943-3945 |
2005.10 |
| 47 |
G. H. Jang
C. I. Lee |
Dual winding method of a BLDC motor for large starting torque and high speed |
IEEE Transaction on Magnetics |
Vol.41, No.10 pp.3922-3924 |
2005.10 |
| 46 |
G. H. Jang
J. H. Han |
Finite element modal analysis of a spinning flexible disk-spindle system in a HDD considering the flexibility of complicated supporting structure |
Microsystem Technologies |
Vol.11, No.8-10 pp.766-778 |
2005.08 |
| 45 |
G. H. Jang
D. K. Kim
C. S. Kim
H. S. Lee |
Improvement of dynamic characteristics of a HDD spindle system supported by ball bearing at elevated temperature |
Microsystem Technologies |
Vol.11, No.8-10 pp.758-765 |
2005.08 |
| 44 |
G. H. Jang
J. H. Han
C. H. Seo |
Finite element modal analysis of a rotating disk-spindle system in a HDD with hydrodynamic bearings considering the flexibility of a complicated supporting structure |
Microsystem Technologies |
Vol.11, No.7 pp.488-498 |
2005.07 |
| 43 |
G. H. Jang
S. H. Lee
H. W .Kim
C. S.Kim |
Dynamic analysis of a HDD spindle system with FDBs due to the bearing width and asymetric grooves of journal bearing |
Microsystem Technologies |
Vol.11, No.7 pp.499-505 |
2005.07 |
| 42 |
Y. B. LEE
S. K. Shin
C. H. Kim
G. H. Jang |
Test results for leakage and rotordynamic coefficients of floating ring seals in a high pressure, high speed turbopump |
Tribology Transactions |
Vol.48 No.3 pp. 273-282 |
2005.07 |
| 41 |
G. H. Jang
S. H. Oh
S. H. Lee |
Experimental study on whirling, flying and tilting motion of a 3.5 |
Tribology International |
Vol.38 Issue6-7 pp. 675-681 |
2005.06 |
| 40 |
G. H. Jang
J. S. Park |
Development of a highly efficient HDD spindle motor with a passive magnetic thrust bearing and a hydrodynamic journal bearing |
Journal of Applied Physics |
Vol.97, No.10, pp.10Q507-1 - 10Q507-3 |
2005.05 |
| 39 |
G. H. Jang
S. J. Park
S. H. Lee |
Electromechanical analysis of a HDB spindle motor considering electromagnetics, thermal analysis, hydrodynamic bearing and rotor dynamics |
IEEE Transaction on Magnetics |
Vol.41, No.5 pp.1608-1611 |
2005.05 |
| 38 |
G. H. Jang
M. G. Kim |
A bipolar-starting and unipolar-running method to drive a HDD spindle motor at high speed with large starting torque |
IEEE Transaction on Magnetics |
Vol.41, No.2 pp.750-755 |
2005.02 |
| 37 |
G. H. Jang
S. J. Park
S. H. Lee |
Finite element analysis of electromechanical field of a HDB spindle motor at elevated temperature |
IEEE Transactions on Magnetics |
Vol.40 No.4 pp.2083-2085 |
2004.07 |
| 36 |
G. H. Jang
S. J. Park |
Characterization of a single phase induction motor due to the effect of slot opening |
IEEE Transactions on Magnetics |
Vol.40 No.4 pp.2065-2067 |
2004.07 |
| 35 |
G. H. Jang
K. S. Kim
H. S. Lee
C. S. Kim |
Analysis of a hydrodynamic bearing of a HDD spindle motor at elevated temperature |
ASME Journal of Tribology |
Vol.126 Issue 2 pp. 353-359 |
2004.04 |
| 34 |
G. H. Jang
S. W.Jeong |
Vibration analysis of a rotating system due to the effect of ball bearing waviness |
Journal of Sound & Vibration |
Vol.269, No.3-5, pp.709-726 |
2004.01 |