Modal analysis of AC quadrupole magnet system for CSNS/RCS

LIU Ren-Hong; QU Hua-Min; KANG Ling; ZHANG Jun-Song; WANG Hai-Jing

doi:10.1088/1674-1137/37/8/087002

Chinese Physics C> 2013, Vol. 37> Issue(8) : 087002 DOI: 10.1088/1674-1137/37/8/087002

Modal analysis of AC quadrupole magnet system for CSNS/RCS

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Abstract：
The quadrupole magnet of the China Spallation Neutron Source (CSNS) Rapid-cycling Synchrotron (RCS) is operated at a 25 Hz sinusoidal alternating current which causes severe vibration. The vibration will influence the long-term safety and reliable operation of the quadrupole magnet. By taking the quadrupole magnet and girder as specific model system, a method for analyzing and studying the dynamic characteristic of the system is put forward by combining theoretical calculation with experimental testing. The theoretical modal analysis results coincide with the experimental testing results. It shows that the dynamic characteristic parameters of the structure can be obtained by modal analysis which will provide a theoretical basis for the further study and the magnet girder optimal design of CSNS/RCS.

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LIU Ren-Hong, QU Hua-Min, KANG Ling, ZHANG Jun-Song and WANG Hai-Jing. Modal analysis of AC quadrupole magnet system for CSNS/RCS[J]. Chinese Physics C, 2013, 37(8): 087002. doi: 10.1088/1674-1137/37/8/087002

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Received: 2012-10-11
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Modal analysis of AC quadrupole magnet system for CSNS/RCS

Corresponding author: LIU Ren-Hong,

Received Date: 2012-10-11
Accepted Date: 1900-01-01
Available Online: 2013-08-05

Abstract: The quadrupole magnet of the China Spallation Neutron Source (CSNS) Rapid-cycling Synchrotron (RCS) is operated at a 25 Hz sinusoidal alternating current which causes severe vibration. The vibration will influence the long-term safety and reliable operation of the quadrupole magnet. By taking the quadrupole magnet and girder as specific model system, a method for analyzing and studying the dynamic characteristic of the system is put forward by combining theoretical calculation with experimental testing. The theoretical modal analysis results coincide with the experimental testing results. It shows that the dynamic characteristic parameters of the structure can be obtained by modal analysis which will provide a theoretical basis for the further study and the magnet girder optimal design of CSNS/RCS.