PAC09 - List of Authors (Shu, Z.)

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Shu, Z.

Paper	Title	Page
WE5PFP025	Numerical Calculus of Resonant Frequency Change by 3D Reconstruction of Thermal Deformed Accelerator Tube	2048
	Z. Shu, M.J. Li, L.G. Shen, Y. Sun, X.C. Wang, W. Zhao USTC/PMPI, Hefei, Anhui Y.J. Pei USTC/NSRL, Hefei, Anhui
	Funding: "Collinear Load for Accelerators and R&D on High Power Microwave Absorbed Material" No.10775128 From National Natural Science Foundation of China Thermal deformation caused by Non-uniform temperature distribution in disk-loaded waveguide will affect the resonant frequency of LINAC deeply. Formerly, researchers evaluated it by experiments or experience and gave their conclusion roughly and linearly. A new approach of integration of multi-disciplinary is adopted to study the relationship more accurately. After loading the loss RF power on the accelerator tube wall, the thermal deformation is calculated in software I-DEAS, and a deformed finite element model is obtained. Then nodes on inner surfaces of the cavities were extracted and sort by a customized program. According to these nodes, a new solid model is reconstructed with a self developed 3D reconstruction technology in ANSYS. B-Spline interpolation technique is used to fit a group of curves first, and then to reconstruct NURBS surfaces. The final reconstructed deformed solid model, obtained by closing the surfaces, can be exported in IGES format which is used to recalculate the resonant frequency in Microwave Studio again. The error of the reconstruction can be controlled within 3 micrometers. The resonant frequency change of every cavity can be accurately calculated. Parietti L, etc., Thermal structural analysis and frequency shift Zhou, Zu-Sheng,etc. Thermal structural analysis and test

Paper

Title

Page

WE5PFP025

Numerical Calculus of Resonant Frequency Change by 3D Reconstruction of Thermal Deformed Accelerator Tube

2048

Z. Shu, M.J. Li, L.G. Shen, Y. Sun, X.C. Wang, W. Zhao
USTC/PMPI, Hefei, Anhui
Y.J. Pei
USTC/NSRL, Hefei, Anhui

Funding: "Collinear Load for Accelerators and R&D on High Power Microwave Absorbed Material" No.10775128 From National Natural Science Foundation of China

Thermal deformation caused by Non-uniform temperature distribution in disk-loaded waveguide will affect the resonant frequency of LINAC deeply. Formerly, researchers evaluated it by experiments or experience and gave their conclusion roughly and linearly. A new approach of integration of multi-disciplinary is adopted to study the relationship more accurately. After loading the loss RF power on the accelerator tube wall, the thermal deformation is calculated in software I-DEAS, and a deformed finite element model is obtained. Then nodes on inner surfaces of the cavities were extracted and sort by a customized program. According to these nodes, a new solid model is reconstructed with a self developed 3D reconstruction technology in ANSYS. B-Spline interpolation technique is used to fit a group of curves first, and then to reconstruct NURBS surfaces. The final reconstructed deformed solid model, obtained by closing the surfaces, can be exported in IGES format which is used to recalculate the resonant frequency in Microwave Studio again. The error of the reconstruction can be controlled within 3 micrometers. The resonant frequency change of every cavity can be accurately calculated.

Parietti L, etc., Thermal structural analysis and frequency shift **
Zhou, Zu-Sheng,etc. Thermal structural analysis and test **