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Novel Precision Assembly Technique of Helix Slow-Wave Structure with Tube Housing
Author(s): 
Pages: 1220-1225
Year: Issue:  11
Journal: Vacuum Science and Technology

Keyword:  Barrel of slow-wave structurePrecision assemblyJoint clearanceForce 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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