JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Zhen, T.T. AU - Deng, H.X. AU - Deng, R. AU - Gao, F. AU - Lu, L.J. AU - Sun, S. ED - Schaa, Volker R.W. ED - Bian, Lin ED - Chen, Zhichu ED - Dong, Yuhui ED - He, Ping TI - Mechanical Analysis and Tests of Austenitic Stainless Steel Bolts for Beamline Flange Connection J2 - Proc. of MEDSI2023, Beijing, China, 06-10 November 2023 CY - Beijing, China T2 - International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation T3 - 12 LA - english AB - Cryogenic tests of 1.3GHz superconducting accelerator cryomodule for the Shanghai Hard X-ray Free Electron Laser Installation Project(SHINE) are in progress. For better performance, a study of mechanical analysis and tests of austenitic stainless steel bolts for beamline flange connection has been done in preliminary work. In order to satisfy the residual magnetism and strength, high-strength austenitic stainless steel bolts are selected. For higher sealing performance, the torque coefficient is determined by compression test, the lower limit of yield of the bolts is obtained by tensile test, then the maximum torque applied to the bolts under real working conditions can be obtained according to the relationship between preload and torque. A finite element model is established to get the deformation curve of the gasket, and the measured results of gasket thickness are compared to ensure the reliability of the simulation. The deformation curve of the gasket is used to calculate the change of compression force under the temperature cycling load(cool down and warm-up). Finally, the results of residual magnetism show that the bolts have a negligible effect on magnetic field. PB - JACoW Publishing CP - Geneva, Switzerland SP - 290 EP - 292 KW - FEL KW - cryogenics KW - vacuum KW - experiment KW - SRF DA - 2024/07 PY - 2024 SN - 2673-5520 SN - 978-3-95450-250-9 DO - doi:10.18429/JACoW-MEDSI2023-THPPP010 UR - https://jacow.org/medsi2023/papers/thppp010.pdf ER -