地脉动作用下主机装置靶室结构稳定性分析与评估
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摘要
在大型固体激光器结构稳定性设计中,数值模拟结果是结构稳定性设计的主要依据,故数值模拟的可信度至关重要。为了评估装置稳定性计算结果的可信度,基于现代模型验证与确认技术中关于不确定性源的量化及传播分析方法、模型形式误差与预测推断的叠加方法研究,对靶球结构的最大位移响应进行了预测推断。稳定性分析中为了快速进行不确定性参数的传播和灵敏度分析,使用二次响应面模型作为代理模型,灵敏度分析结果表明模态阻尼比对靶球结构的稳定性影响更大。对关心量的稳定性预测结果表明,靶球结构最大位移响应的上界与稳定性设计指标相比,安全裕度仍大于7,说明主机装置的稳定性设计具有足够的可信度。
In the stability design of a high-power laser facility,the simulation results are important references,and the reliability of the simulation results is important.In order to evaluate the reliability of the stability analysis results,the maximum displacement response of Shenguang-Ⅲ chamber is predicted based on uncertainty quantification and propagation methods,and the model form error and the prediction methods in the modern model verification and validation(V&V).The quadratic polynomial response surface model is regarded as the metal model to improve the efficiency on the parameter propagating and sensitivity analyzing.The sensitivity analysis result shows that the modal damping ratios are more important than the mechanical parameters of the concrete.The stability prediction result of quantity of interest shows that the stability design margin of Shenguang-Ⅲchamber is more than 7times,which validates that the stability design of Shenguang-Ⅲ chamber is reliable enough.
In the stability design of a high-power laser facility,the simulation results are important references,and the reliability of the simulation results is important.In order to evaluate the reliability of the stability analysis results,the maximum displacement response of Shenguang-Ⅲ chamber is predicted based on uncertainty quantification and propagation methods,and the model form error and the prediction methods in the modern model verification and validation(V&V).The quadratic polynomial response surface model is regarded as the metal model to improve the efficiency on the parameter propagating and sensitivity analyzing.The sensitivity analysis result shows that the modal damping ratios are more important than the mechanical parameters of the concrete.The stability prediction result of quantity of interest shows that the stability design margin of Shenguang-Ⅲchamber is more than 7times,which validates that the stability design of Shenguang-Ⅲ chamber is reliable enough.
引文
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[2]Trummer J,Foley J,Shaw S.Stability of optical elements in the NIF target area building[C]//Proc of SPIE.1999,3492:363-371.
[3]Debeling A G.Cryogenic target pylon stability working group preliminary report[R].UCRL-TR-206655,2004.
[4]黄宏彪,曾台英,张涛,等.神光Ⅱ升级装置中靶场桁架的结构稳定性[J].强激光与粒子束,2009,21(1):67-70.(Huang Hongbiao,Zeng Taiying,Zhang Tao,et al.Structure stability of superstructure in SG-Ⅱupgrade facility.High Power Laser and Particle Beams,2009,21(1):67-70)
[5]徐元利,陈学前,高海鹰,等.神光Ⅲ主机装置真空靶室组件研制[J].强激光与粒子束,2012,24(11):2623-2626.(Xu Yuanli,Chen Xueqian,Gao Haiying,et al.Development of vacuum target chamber component in Shenguang-Ⅲlaser facility.High Power Laser and Particle Beams,2012,24(11):2623-2626)
[6]陈晓娟,王美聪,吴文凯,等.神光-Ⅲ主机装置靶场光传输系统结构设计[J].强激光与粒子束,2014,26:102008.(Chen Xiaojuan,Wang Meicong,Wu Wenkai,et al.Structural design of beam transport system in SG-Ⅲfacility target area.High Power Laser and Particle Beams,2014,26:102008)
[7]Oberkampf W L,Roy C J.Verification and validation in scientific computing[M].England:Cambridge University Press,UK,2010.
[8]GB 50010—2002.混凝土结构设计规范[S].北京:中国建筑工业出版社,2003.(GB 50010—2002.Code for design of concrete structures.Beijing:China Building Industry Press,2003)
[9]尚云东,王玮.路面混凝土弯拉强度及弹性模量的试验研究[J].交通标准化,2006,153:94-98.(Shang Yundong,Wang Wei.Study on experiment of curved-pulls intensity and elasticity modulus of pavement concrete.Communications Standardization,2006,153:94-98)
[10]Tabatabaie M.Analysis of soil-structure interaction due to ambient vibration[R].UCRL-JC-130342,1998.
[11]陈学前,徐元利.柔性基础对ICF装置稳定性的影响研究[J].强激光与粒子束,2011,23(6):1569-1573.(Chen Xueqian,Xu Yuanli.Studying on the influence of flexible foundation on the stability of ICF facility.High Power Laser and Particle Beams,2011,23(6):1569-1573)
[12]陈学前,肖世富,刘信恩.响应面法在结构参数灵敏度及可靠性分析中的应用[J].力学与实践,2012,34(3):32-35.(Chen Xueqian,Xiao Shifu,Liu Xin’en.An application of response surface method on structural parameters sensitivity and reliability analysis.Mechanics in Engineering,2012,34(3):32-35)