关于消雷器的研究

本文叙述了自１９７７年首次提出消雷器研究课题以来的消雷器研究历程，对消雷器进行了试验室试验、现场实测和理论分析，以及参与国防科工委２７基地（西昌发射基地）的防雷方案的讨论，根据２７基地等现场对雷电参数和避雷针、半导体消雷器为时三年的对比试验，并参照国外有关文献〔１０〕，最后得出结论：无论是国外消雷器还是国内消雷器均不能“消雷”，半导体消雷器只是避雷针的一种而已。     

三层土壤中垂直棒接地电阻的解析计算方法

基于等值土壤电阻率的概念，导出了三层土壤中垂直棒接地电阻解析计算公式。验证计算结果表明：解析公式与计算机数值计算法结果相比较，计算误差小，具有实用价值。     

ML08A1钢表面缺陷分析及改进措施

对影响邢钢ML08A1冷镦性能的钢坯和盘条表面缺陷进行了分析，针对不同的表面缺陷采取了积极的改进措施，使ML08A1盘条的表面质量和冷镦合格率均有较大程度的提高。     

Numerical Simulation of Rigid Projectile''''s Normally Penetrating into Granite Targets

The process of penetrating into granite was simulated by using program LS-DYNA3D. The granite was represented by the isotropic elastic-plastic model with failure criterion and the projectile was modeled by rigid model. The depth of penetration from simulations is identical with experiments. Penetration deceleration vs striking velocity was acquired at the same time, which can assist in the design of penetration weapons with payload and fuse. Through numerical simulation, that material model is considered with straightforward physical meaning, a few parameters which can be determined easily are more practical for engineering calculation along with experiments.     

变形量和冷却速度对Q235钢晶粒细化的影响

以钢种为Q235,直径为φ14的圆钢精轧最后三道为研究对象,采用Gleeble 1500D热模拟实验机研究并分析了不同变形工艺和冷速对实验钢组织的影响,同时针对实验结果,提出了一种晶粒细化的工艺制度.     

悬臂筛网振动筛在烧结成品整粒系统中的应用

莱钢烧结成品整粒系统的三次筛分和四次筛分，一直用直线振动筛。随着烧结矿产量的增加，原直线振动筛因其处理能力低、筛分效率低、运行成本高等已不能满足生产要求。悬臂筛网振动筛具有动态筛孔，且可使物料充分接触筛面，体积小、耗能低、筛粉效率高，经现场适应性改造代替了原直线振动筛。应用表明，筛分指数由8％降低到了6％，满足了生产工艺要求，年效益为1394万元。     

盘条和钢丝国际标准现状及我国标准与国际标准接轨的思考

综述了ISO TC17 SC17秘书处制定的最新盘条和钢丝国际标准的内容和特点 ,提出我国盘条和钢丝国家标准与国际标准接轨的“双向原则”及具体实施方法。     

Effect of Rare Earth Element Ce on Microstructure and Properties of Aluminum Rod for Electrical Purpose

The effect of rare earth element Ce on microstructure, electrical conductivity and mechanical properties was studied.Using optical microscope, scanning electron microscope, transmission electron microscope and X-ray diffractometer, the microstructure and phase composition of aluminum rod for electrical purpose were measured and analyzed.The results indicate that rare earth element Ce can considerably refine grain size of aluminum rod for electrical purpose,improve the regular distribution pattern of the impurity, such as silicon and iron which present in the aluminum matrix,form stable metal compound with pernicious impurity.This metal compound precipitates on the crystal boundary.As a result, the solid solubility of impurity in aluminum reduce, and the electrical conductivity of aluminum rod for electrical purpose is improved.It is found that the mechanical properties of aluminum rod for electrical purpose are improved by rare earth element in certain range of RE addition.     

Analysis of NEA C5MOX benchmark with computer code “cohint” based on interface current approach

Interface current approach to solution of neutron transport equation has been earlier used for LWR lattice problems. The analysis of the C5MOX benchmark is a opportunity to test its applicability to heterogeneous reactor problem. Computer code COHINT, which incorporates a routine for solution of neutron transport equation in X-Y geometry by interface current approach was used for this analysis by representing the fuel rod as a square one. Region interface angular fluxes are represented by a four-term expansion. It is found that the average pin power error is about 2.28 % (peak pin error 4.1 %) relative to reference calculations. Further improvement is possible by introduction of the capability to represent circular rods with in a square cell in COHINT.     

一种典型齿形紧配合面微动损伤机理研究

结合对连杆的动力学分析，对16V280ZJ型柴油机连杆齿状紧配合件结合面的损伤进行了分析研究，结果表明，齿面间复杂的微动疲劳作用加速了齿表面裂纹的萌生与扩展，是降低使用寿命的主要原因，研究结果对其它类型的柴油机连杆（如16V240）或其它类似的紧结合面损伤机理研究具有指导意义。