Study of the dynamic characteristics of the AC dipole-girder system for CSNS/RCS

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

doi:10.1088/1674-1137/38/7/077003

Chinese Physics C> 2014, Vol. 38> Issue(7) : 077003 DOI: 10.1088/1674-1137/38/7/077003

Study of the dynamic characteristics of the AC dipole-girder system for CSNS/RCS

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Abstract：
China Spallation Neutron Source (CSNS) is a high intensity proton accelerator-based facility. Its accelerator complex includes two main parts: an H- linac and a rapid cycling synchrotron (RCS). The RCS accumulates an 80 MeV proton beam and accelerates it to 1.6 GeV, with a repetition rate of 25 Hz. The AC dipole of the CSNS/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 magnet. The CSNS/RCS AC dipole-girder system takes vibration isolator to decrease the vibratory force and the vibration amplitude of the dipole. For the long-term safety and reliable operation of the dipole, it is very important to study the dynamic characteristics of the dipole-girder system. This paper takes the dipole-girder as a specific model system. A method for studying the dynamic characteristics of the system is put forward by combining theoretical calculation with experimental testing. The modal parameters with and without vibration isolator of the dipole-girder system are obtained through ANSYS simulation and testing. Then, the dynamic response of the system is calculated with modal analysis and vibration testing data. With the simulation and testing method, the dynamic characteristics of the AC dipole-girder are studied.

References

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LIU Ren-Hong, QU Hua-Min, ZHANG Jun-Song, KANG Ling, WANG Mo-Tuo, WANG Guang-Yuan and WANG Hai-Jing. Study of the dynamic characteristics of the AC dipole-girder system for CSNS/RCS[J]. Chinese Physics C, 2014, 38(7): 077003. doi: 10.1088/1674-1137/38/7/077003

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Received: 2013-08-28
Revised: 2014-01-05

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of the dynamic characteristics of the AC dipole-girder system for CSNS/RCS

Corresponding author: LIU Ren-Hong,

Received Date: 2013-08-28

Accepted Date: 2014-01-05

Available Online: 2014-07-05

Abstract: China Spallation Neutron Source (CSNS) is a high intensity proton accelerator-based facility. Its accelerator complex includes two main parts: an H- linac and a rapid cycling synchrotron (RCS). The RCS accumulates an 80 MeV proton beam and accelerates it to 1.6 GeV, with a repetition rate of 25 Hz. The AC dipole of the CSNS/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 magnet. The CSNS/RCS AC dipole-girder system takes vibration isolator to decrease the vibratory force and the vibration amplitude of the dipole. For the long-term safety and reliable operation of the dipole, it is very important to study the dynamic characteristics of the dipole-girder system. This paper takes the dipole-girder as a specific model system. A method for studying the dynamic characteristics of the system is put forward by combining theoretical calculation with experimental testing. The modal parameters with and without vibration isolator of the dipole-girder system are obtained through ANSYS simulation and testing. Then, the dynamic response of the system is calculated with modal analysis and vibration testing data. With the simulation and testing method, the dynamic characteristics of the AC dipole-girder are studied.

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Study of the dynamic characteristics of the AC dipole-girder system for CSNS/RCS

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