SNS mercury target design optimization
SNS mercury target design optimization
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SNS汞靶设计优化
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
S. Kaminskas
中科院分区：
文献类型：
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作者：
S. Kaminskas
田纳西州橡树岭国家实验室散裂中子源 (SNS) 的汞靶在多种恶劣条件下工作：高温、辐射、汞流和质子束脉冲压力。光束脉冲和热循环载荷导致目标不锈钢容器强度和耐用性不足，可能导致汞泄漏和目标寿命过早终止。 SNS 已采用达索系统扩展 Abaqus 包中的参数化和非参数化形状优化工具（Isight、Tosca）来开发稳健可靠的目标设计。使用公认的领先 Fe-Safe（结构疲劳）和 Verity（焊接疲劳）软件进行的耐久性评估也包含在优化过程中。进行实验设计 (DOE) 来创建钢容器结构的响应面。响应面用于基于 Abaqus 和 Fe-Safe 不同分析结果的设计探索。首次利用Tosca优化工具对充汞钢容器进行形状优化。获得的复杂结果使我们能够考虑最可行设计的可能权衡。
The mercury target at the Spallation Neutron Source (SNS) in Oak Ridge National Laboratory, Tennessee, works under a number of severe conditions: high temperature, radiation, mercury flow, and proton beam pulse pressures. Insufficient strength and durability of the target stainless steel vessel from beam pulse and thermal cyclic loads can lead to mercury leaks and premature target life termination. The parametric and non-parametric shape optimization tools (Isight, Tosca) from Dassault Systemes Extended Abaqus Package have been adopted at SNS to develop robust and reliable target designs. The durability evaluation with recognized leading Fe-Safe (structural fatigue) and Verity (weld fatigue) software is also included in optimization process. Design of Experiment (DOE) was performed to create the response surface for steel vessel structure. The response surfaces are used for design exploration on a basis of Abaqus and Fe-Safe different analyses results. The shape optimization of steel vessel filled with mercury was performed first time using Tosca optimization tool. Obtained complex results enable the consideration of possible trade-offs for the most feasible design.