Author:
Zhu Dongsheng,Zhang Zhijing,Shao Chao,Zhang Weiming,Liu Jue,Wu Feifei
Abstract
Abstract
In order to solve the problem of uneven distribution of assembly stress in thermal-mechanical package (TMP) component, the influence of the roundness error of hohlraum on the assembly stress of TMP component is studied. Firstly, five sets of hohlraum contour models with different random roundness errors are described by Hermite interpolation method, a three-dimensional model of hohlraum with random roundness error is established by inverse modeling method. Then, the contact nonlinear solution is solved for the hohlraum and the aluminum shell of the five groups of TMP component by finite element method. Finally, the five sets of simulation data is obtained and the polynomial fitting is performed, the relationship between the roundness error of the hohlraum and the maximum stress-strain of the TMP component is obtained. The conclusions provide a theoretical basis for the strength check of the hohlraum contact design, and provide theoretical guidance and technical support for a reasonable hohlraum assembly process.
Subject
General Physics and Astronomy
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