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基于ANSYS的ITER重力支撑系统特征值屈曲分析 总被引:1,自引:0,他引:1
针对ITER重力支撑系统的结构特点,应用有限元软件ANSYS,建立了ITER重力支撑系统的有限元模型.采用Block Lanczos方法对ITER重力支撑系统在静载荷与地震载荷同时作用下的稳定性进行了特征值屈曲分析,求出了ITER重力支撑系统的前3阶屈曲特征值和特征值屈曲模态.结果表明ITER重力支撑系统不会发生屈曲,韧性板是整个支撑系统中最易发生屈曲的零件.屈曲分析的结果对ITER装置的设计与改进具有一定的指导意义. 相似文献
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静载荷作用下的ITER重力支撑系统有限元静力分析 总被引:1,自引:0,他引:1
针对ITER重力支撑系统的特点,提出了ITER重力支撑系统的有限元静力分析方法。应用ANSYS软件,建立了ITER重力支撑系统三维实体模型。采用精度比较高,且计算规模又可以接受的单元网格划分方法,进行网格划分。在Volume之间的界面上定义接触单元。得到了支撑系统有限元模型。对受静负载作用的ITER重力支撑系统进行了有限元静力分析。获得了支撑系统各零件的应力分布及最大应力,分析了这些零件的强度。静力分析的结果为ITER重力支撑系统的设计或改进提供了可靠的理论依据。 相似文献
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利用ANSYS有限元优化分析功能,对终端盒进行了优化分析,展示了用ANSYS优化分析功能实现结构优化的优越性,同时为其它复杂结构的优化分析提供了新的方法和依据. 相似文献
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正【本刊讯】为了保证ITER计划板材合同的执行进展以及审查质量管理体系对ITER计划的实际执行效果,近日,由国家科技部ITER中心项目管理处何开辉处长带队的第二方质保审核组一行5人到太钢进行现场审核。审查组先后审核了太钢军工核电部、制造部、技术中心、采购部、人力资源部、型材厂、不锈冷轧厂、太钢不锈临汾分 相似文献
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介绍了ITER的项目背景、稳定性的基本概念以及稳定性分析的基本方法,以ITER杜瓦设备作为研究对象,对其在自重载荷作用下进行了特征值屈曲分析和非线性屈曲分析,得到其失稳模态以及失稳时的临界载荷,为杜瓦的整体设计提供参考。 相似文献
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本文主要从整机结构和实体划分的角度简要地介绍了光配线架(终端盒)、数字配线架(高频、低频)的用途以及配线架的系列设计,并简要地介绍了国外配线架的类型。 相似文献
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A. Yu. Tsutskikh D. V. Prosvirin A. V. Krasil’nikov C. I. Walker 《Instruments and Experimental Techniques》2006,49(2):174-178
Monte-Carlo calculations of the fluxes of forward and scattered neutrons at points of arrangement of the detectors for the analyzed design of the ITER multichannel vertical neutron collimator have been performed with the MCNP model. A concept of a vertical neutron collimator positioned in the diverter port is proposed, and the efficiency of its application for determining the spatial distribution of the ITER tokamak reactor’s neutron source is demonstrated with allowance for the calculation results and the possibilities of integrating the collimator into the ITER structure. 相似文献
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外真空杜瓦是国际热核聚变实验反应堆ITER(International Thermonuclear ExperimentaReactor)上的重要装置,是ITER托卡马克的最外侧部件,主要功能是提供真空环境,避免过多的热载荷传递到磁体系统和冷屏等结构;为了在氦气泄露,以及等离子体破裂等极端情况下保证主机的安全,外真空杜瓦必须具有足够的强度。ITER杜瓦上环体是杜瓦的重要组成部分,属于薄壁圆筒结构,由18部分组成(各部分焊接连接),取其1/9体模型和1/18壳模型分别运用大型有限元分析软件ANSYS,对其不同载荷状况进行了数值计算,分析结果表明,应力集中在矩形孔、轴向筋板和加强圈处,能够满足上环体强度要求,分析结果为其结构设计与优化提供了理论依据。 相似文献
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Yu. A. Kashchuk A. V. Krasil’nikov D. V. Prosvirin A. Yu. Tsutskikh V. V. Frunze C. I. Walker 《Instruments and Experimental Techniques》2006,49(2):179-186
The operating conditions of a neutron diagnostic system responsible for measuring the neutron yield in the ITER tokamak reactor are analyzed. Based on results of physical calculations and analysis of suitable methods for measuring the neutron yield, an original concept of a system for measuring neutron fluxed in the divertor zone of the ITER is proposed. The design for the neutron flux monitor located in the divertor zone of the tokamak is selected in view of the requirements specified for the neutron diagnostic system of the ITER and its operating conditions. Four fission chambers with different sensitivities and radiator materials are used as sensitive elements of the monitor. This system is capable of measuring neutron fluxes over the entire dynamic range of the neutron yield in the ITER with an error of ≤10% and a time resolution of 1 ms that are necessary for studying the physical mechanism of thermonuclear plasma ignition and burning. Several possible variants for housing the detector unit inside the divertor assembly and integrating it in the existing project are proposed. The problems of carrying out efficiency calibration of the divertor neutron monitor with the aim of determining the absolute value of the neutron yield in the ITER tokamak reactor are discussed. 相似文献
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I. A. Barykov Yu. V. Gott M. M. Stepanenko 《Instruments and Experimental Techniques》2006,49(2):270-273
A multielectrode vacuum photoemission detector for X-ray tomography of plasmas at the ITER facility is described. The detector characteristics have been investigated with an X-ray source. The spectral response of the detector to X-ray photons with energies of 3–30 keV has been determined. The spatial and angular dependences of the X-ray detection efficiency are presented. The useful signal of the ITER facility has been estimated. 相似文献
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S. S. Portone N. L. Marusov E. Yu. Mironova E. S. Rogova I. B. Semenov 《Instruments and Experimental Techniques》2012,55(2):198-202
Main components of the control data acquisition and communication (CODAC) system for process technologies of the ITER plant
are described. The CODAC system demonstrates the state-of-the-art level of high-performance measuring and control systems.
The solution to designing stationary ultrahigh-speed measuring channels (quantization frequency is ≥1 GHz) is proposed in
the ITER project. The organization of synchronizing the measuring channel synchronization system with the universal time is
considered in the ITER project. 相似文献
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Thomas DM Counsell G Johnson D Vasu P Zvonkov A 《The Review of scientific instruments》2010,81(10):10D725
Active (beam-based) spectroscopic measurements are intended to provide a number of crucial parameters for the ITER device being built in Cadarache, France. These measurements include the determination of impurity ion temperatures, absolute densities, and velocity profiles, as well as the determination of the plasma current density profile. Because ITER will be the first experiment to study long timescale (~1?h) fusion burn plasmas, of particular interest is the ability to study the profile of the thermalized helium ash resulting from the slowing down and confinement of the fusion alphas. These measurements will utilize both the 1 MeV heating neutral beams and a dedicated 100 keV hydrogen diagnostic neutral beam. A number of separate instruments are being designed and built by several of the ITER partners to meet the different spectroscopic measurement needs and to provide the maximum physics information. In this paper, we describe the planned measurements, the intended diagnostic ensemble, and we will discuss specific physics and engineering challenges for these measurements in ITER. 相似文献