Novel Precision Assembly Technique of Helix Slow-Wave Structure with Tube Housing
Author(s): Liang Jimin, Zhang Gong, Wang Weijun, Sheng Ya, Xu Zheng, Chen Xianshuai, Guangzhou Institute of Advanced Technology Chinese Academy of Sciences, Shenzhen Institutes of Advanced Technology, School of Electromechanical Engineering, Guangdong University of Technology
Pages: 1220-1225
Year: 2016 Issue: 11
Journal: Vacuum Science and Technology
Keyword: Barrel of slow-wave structure; Precision assembly; Joint clearance; Force and deformation analysis;
Abstract: A novel assembly technique of the helix slow wave structure( SWS) withtube housing was developed to precisely control the force and deformation. The dependence of thedeformation on the joint clearancein the proposed clamping scheme was investigated. The impact of the load on the deformation and stress distribution of the tube housing assembled in the newly-developed technique was mathematically modeled,theoretically analyzed in Castigliano’s method,and numerically simulated in finite element method with software ANSYS. The simulated results show that in the elastic deformation range,the relative discrepancies of the stress and total deformation,at the spots exerted by external forces,are below 9. 8% and 0. 62%,respectively. We suggest that the new assembly technique of tube housing be of some technological interest in development of the precision assembling equipment for helix SWS.
Pages: 1220-1225
Year: 2016 Issue: 11
Journal: Vacuum Science and Technology
Keyword: Barrel of slow-wave structure; Precision assembly; Joint clearance; Force and deformation analysis;
Abstract: A novel assembly technique of the helix slow wave structure( SWS) withtube housing was developed to precisely control the force and deformation. The dependence of thedeformation on the joint clearancein the proposed clamping scheme was investigated. The impact of the load on the deformation and stress distribution of the tube housing assembled in the newly-developed technique was mathematically modeled,theoretically analyzed in Castigliano’s method,and numerically simulated in finite element method with software ANSYS. The simulated results show that in the elastic deformation range,the relative discrepancies of the stress and total deformation,at the spots exerted by external forces,are below 9. 8% and 0. 62%,respectively. We suggest that the new assembly technique of tube housing be of some technological interest in development of the precision assembling equipment for helix SWS.
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