Modal analysis and testing of a thin-walled gradient coil cylinder model

Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering

Volumn 27, Issue 1, 2005, Pages 34-50

  Wang, Fenglin ^a   Mechefske, Chris K ^a  

^a QUEEN S UNIVERSITY   (Canada)

Author keywords

Acoustic noise sources; Gradient coil inserts; Modal analysis; Modal testing; Thin shell cylinder

Indexed keywords

EID: 30744438067     PISSN: 15525031     EISSN: None     Source Type: Journal    
DOI: 10.1002/cmr.b.20045     Document Type: Article

References (19)

1. Hurwitz R, Lane SR, Bell RA, Brant-Zawadzki MN. 1989. Acoustic analysis of gradient coil noise in MR imaging. Radiology 173:545-548.
2. Edelstein WA, Hedeen RA, Mallozzi RP, El-Hamamsy SA, Ackermann RA, Havens TJ. 2002. Making MRI quieter. Magn Reson Imaging 20:155-163.
3. General Electric Company. 2002. Low noise MRI scanner. US patent 6, 437,568 B1.
4. Kabushiki Kaisha Toshiba. 2000. Magnetic resonance imaging system having mechanically decoupled field generators to reduce ambient acoustic noise. US patent 6, 043, 653.
5. Yoshida T, Takamori, Katsunuma HA. 2000. EXCELART TM MRI system with revolutionary pianissimo TM noise-reduction technology. Medical Review No. 71.
6. Mechefske CK, Geris R, Gati JS, Rutt BK. 2002. Acoustic noise reduction in a 4T MRI scanner. MAGMA 13:172-176.
7. Hedeen RA, Edelstein WA. 1997. Characterization and prediction of gradient acoustic noise in MR imaging. Magn Reson Med 37:7-10.
8. Mechefske CK, Wu Y, Rutt BK. 2002. MRI gradient coil cylinder sound field simulation and measurement. J Biomech Eng 124:1-6.
9. Li W, Mechefske CK, Gazdzinski C, Rutt BK. 2004. Acoustic noise analysis and prediction. Concepts in Magnetic Resonance Part B, Magnetic Resonance Engineering 21B:19-25.
10. Cho ZH, Park SH, Kim JH, Chung SC, Chung ST, Chung JY, Moon CW, Yi JH, Sin CH, Wong EK. 1997. Analysis of acoustic noise in MRI. Magn Reson Imaging 15(7):815-822.
11. Mechefske CK, Yao G, Wang F. 2004. Vibration and acoustic characterization of a gradient coil insert in a 4 T MRI. Journal of Vibration and Control 10:861-880.
12. Yao GZ, Mechefske CK, Gazdzinski C, Rutt BK. 2003. Acoustic noise analysis of the gradient coil insert for a 4T MRI scanner. ISMRM Conference, Toronto, Canada, May 12-16.
13. Yao GZ, Mechefske CK, Wang F, Rutt BK. 2003. Modal analysis of a gradient coil insert for a 4T MRI scanner. ISMRM Conference, Toronto, Canada, May 12-16.
14. Yao GZ, Mechefske CK, Gazdzinski C, Wang F, Rutt BK. 2004. Vibration analysis and measurement of a gradient coil insert for a 4T MRI scanner. ISMRM Conference, Kyoto, Japan, May 17-21.
15. Jinhao Q, Junji T. 1995. Vibration control of a cylindrical shell used in MRI equipment. Smart Mater Struct 4:74-81.
16. Leissa AW. 1973. Vibration of shells. NASA SSP-288, Washington, DC.
17. Soedel W. 2004. Vibrations of shells and plates. 3rd edition. New York: Dekker.
18. Flügge. 1962. Stresses in shells. Berlin: Springer.
19. Timshenko S, Woinowsky-Krieger S. 1959. Theory of plates and shells. New York: McGraw-Hall.