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TY - CONF AU - Zhang, J.S. AU - Chen, J.X. AU - He, H.Y. AU - Kang, L. AU - Liu, L. AU - Liu, R.H. AU - Ning, C.J. AU - Wang, A.X. AU - Wang, G.Y. AU - Yu, J.B. AU - Yu, Y.J. AU - Zhu, D.H. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - Optimization Design of Four-Point Vibration Isolation Support for Spallation Neutron Source Vibration Magnet J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - Chinese spallation neutron source (CSNS) RCS of the dipole magnets by 25 Hz sinusoidal alternating current (AC) with dc bias field, because the magnet will produce eddy current effect caused by the vibration, this safe and reliable operation of the long-term impact of magnets, so need to CSNS/RCS dipole magnets, a support system for dynamic characteristic research and the performance of vibration isolation design. The mechanical model of ac dipole magnet and support system is first established, and ANSYS theoretical modal analysis and experimental modal verification are carried out. On this basis, vibration isolation parameters of the four-point support system are studied. The theoretical analysis and the experimental results of modal parameters are consistent, which shows that the ANSYS analysis model is correct and reliable. The dynamic system parameter design method established in this paper can be applied to various equipment of AC power accelerator. The final experimental verification shows that the total displacement amplitude of the isolator to the Y direction of the magnet on the magnetic support decreases by 62.3%. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4352 EP - 4354 KW - ISOL KW - dipole KW - experiment KW - damping KW - extraction DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-THPAB282 UR - https://jacow.org/ipac2021/papers/thpab282.pdf ER -