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电子信息装备损伤分析技术研究 被引量:1
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作者 荣辉 王呈阳 《科技创新导报》 2008年第22期1-1,共1页
结合装备损伤评估与修复技术,提出了一种基于基本功能项目分析、装备损伤树分析与损伤模式及影响分析相结合的电子信息装备抢修分析方法,介绍了如何利用装备损伤分析数据指导电子信息装备损伤评估程序、损伤修复方法及电子信息装备抢修... 结合装备损伤评估与修复技术,提出了一种基于基本功能项目分析、装备损伤树分析与损伤模式及影响分析相结合的电子信息装备抢修分析方法,介绍了如何利用装备损伤分析数据指导电子信息装备损伤评估程序、损伤修复方法及电子信息装备抢修所需保障资源的编制。 展开更多
关键词 电子信息装备 损伤分析技术 装备抢修
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潜艇战场损伤评估仿真中的关键技术研究
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作者 刘博 马亮 +1 位作者 叶文 范洪达 《计算机工程》 CAS CSCD 北大核心 2008年第2期264-266,272,共4页
研究了潜艇战场损伤仿真评估中的两个关键问题,在综合分析潜艇战场损伤因素的基础上,提出了基于历史数据的损伤日志知识库,并结合专家意见和损伤分析技术,定义了新的仿真数据的综合获取技术,定义和构建了仿真体系中各Agent的体系结构以... 研究了潜艇战场损伤仿真评估中的两个关键问题,在综合分析潜艇战场损伤因素的基础上,提出了基于历史数据的损伤日志知识库,并结合专家意见和损伤分析技术,定义了新的仿真数据的综合获取技术,定义和构建了仿真体系中各Agent的体系结构以及协作执行单元。仿真结果证明了数据综合获取技术和结构体定义的有效性。 展开更多
关键词 损伤分析技术 损伤日志知识库 战场损伤评估
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Micromechanical analysis of damage evolution in splitting test of asphalt mixtures 被引量:1
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作者 陈页开 虞将苗 张肖宁 《Journal of Central South University》 SCIE EI CAS 2010年第3期628-634,共7页
A methodology was presented relating the microstructure of asphalt mixtures to their damage behavior. Digital image techniques were used to capture the asphalt mixture microstructure, and the finite element method was... A methodology was presented relating the microstructure of asphalt mixtures to their damage behavior. Digital image techniques were used to capture the asphalt mixture microstructure, and the finite element method was used to simulate the damage evolution of asphalt mixture through splitting test. Aggregates were modeled to be linearly elastic, and the mastics were modeled to be plastically damaged. The splitting test simulation results show that the material heterogeneity, the properties of aggregates and air voids have significant effects on the damage evolution approach. The damage behavior of asphalt mixture considering material heterogeneity is quite different from that of the conventional hypothesis of homogeneous material. The results indicate that the proposed method can be extended to the numerical analysis for the other micromechanical behaviors of asphalt concrete. 展开更多
关键词 asphalt mixture digital image techniques X-ray computerized tomography finite element method damage behavior
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Effect of stiffeners on crashworthiness of square aluminium columns considering damage evolution 被引量:1
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作者 H.R.Allahbakhsh M.Shariati M.Sedighi 《Journal of Central South University》 SCIE EI CAS 2013年第3期599-607,共9页
Combining the optimization and FEM technology,crashworthiness of aluminum extrusions was studied for an automobile safety plan.The effects of longitudinal stiffeners on the crushing of stiffened square columns were st... Combining the optimization and FEM technology,crashworthiness of aluminum extrusions was studied for an automobile safety plan.The effects of longitudinal stiffeners on the crushing of stiffened square columns were studied considering the damage evolution.The numerical analysis was carried out by ABAQUS software.Subsequently,the collapse behavior of aluminum extrusion damage was validated by comparing against solution published in literature.Finally,in order to find more efficient and lighter crush absorber and achieving minimum peak crushing force,response surface methodology(RSM) has been applied for optimizing the aluminum extrusion tube. 展开更多
关键词 damage response surface methodology (RSM) CRASHWORTHINESS STIFFENER
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