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奋进的历程——纪念铁道部科学研究院建院50周年

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中国铁路 2000年第3期 1-3页

作者： china academy of railway sciences 铁道部科学研究院

介绍了铁道部科学研究院建院50周年来的发展历程,在铁路科技战线发挥的主力军作用及做出的重要贡献。

关键词：发展科研成果铁道部科学研究院

A Study on Numerical Simulation of Train Aerodynamics

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中国铁道科学 2002年第4期 137-140页

作者： WU Qing Hai (china academy of railway sciences, Beijing 100081, china)

EFFECT OF CARBON CONTENT ON PROPERTIES OF SLACK-QUENCHED RAILS

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Acta Metallurgica Sinica(English Letters) 1992年第5期5卷 349-353页

作者： ZHOU Qingyue WANG Shuqing SHAO Yangdao NIE Shufan ZHOU Zhenguo china academy of railway sciences,Beijing china Acad of railway Science Beijing China

A comparative investigation was carried out of the routine mechanical properties,fracture toughness,microstructure and hardness of slack-quenched rails containing different carbon *** the rails slack-quenched,their strength and toughness,together with ductility, are obviously improved,and the higher the quench hardening is,the more the resistance to wear and shell will *** was also made of the reason for this improvement and of the effect of carbon content and quench hardening on the properties of rails in combination with the rail-laying trial.

关键词： carbon content slack-quenched rail property

STUDY OF THE EFFECT OF FIRE RETARDERS ON THE PROPERTIES OF ANTICORROSION PRIMERS

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材料保护 1992年第2期 4-8页

作者： china academy of railway sciences(100081) Xi Shijun. Yang Songbai

Six anticorrosion primers were prepared respectively by using two fire retarders-APP and DBDPO. Properties of these primers were determined with four test methods-salt water immersion,salt water spray test,determination of impedance of coated steel and C. R. M. Results show that APP with definite water-soluble property reduced anticorrosion performance of the primers,while non water-soluble DBDPO would not affect the anticorrosion properties of the primers if the Pigment Volume Concentrations(P. V. C)were well calculated.

关键词： DBDPO STUDY OF THE EFFECT OF FIRE RETARDERS ON THE PROPERTIES OF ANTICORROSION PRIMERS

Residual stress around rail bolt holes after cold-expansion

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International Journal of Minerals,Metallurgy and Materials 1997年第3期11卷 35-42页

作者： SHEN Hongwei SU N Ning MU Ensheng ZOU Dingqiang (china academy of railway sciences, Beijing 10008 1, china)

Focused on rail bolt hole cold-expansion, the theoretical prediction models and results of residual stress analysis on related Problems are summarized. And a stress analyzing method based on both of the strain measurement duringthe Process of cold expansion and elastoc-plastic theory is developed. By the method proposed and the magneto-elasticmethod as well as the stress relief measurement detailed experimental study on the residual stress surrounding the coldexpanded tail bolt hole is performed. Relationship between the distribution of residual stress and cold expansion rateare established. The adaptability and limitation of theoretical predichon are also analyzed by comparing the theoreticaland experimental results.

关键词： cold expansion rail bolt hole stress analysis

MICROSTRUCTURE AND FATIGUE PROPERTIES OF RAIL STEEL

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Acta Metallurgica Sinica(English Letters) 1991年第1期4卷 65-70页

作者： ZHOU Qingyue ZHO U Chenguang china academy of railway sciences,Beijing,china Engineer,Metal and Chemistry Research Institute,china academy of railway sciences,Beijing 100081,china

The subcritical propagation of fatigue cracks and the microstructure of rail steel with relation to stress ratio have been *** effect of mierostrueture of the rail steel on their fatigue lives has been discussed.

关键词： rail steel microstructure fatigue life stress ratio

Study on Digital Data Acquisition,Processing and Simulation of High Pressure Fuel Pipe Pressure Wave of Diesel Engine and Fault Diagnosis(An Abstract of the ***)

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中国铁道科学 2001年第2期 138-139页

作者： LIN Rong wen, DONG Xi ming (Supervisor) (china academy of railway sciences, Beijing 100081, china)

As the main power unit of railway transportation, diesel locomotives are now developing towards high power, low fuel consumption and low exhaust emission. At the same time, people are more concerned about operation reliabilities and maintenance of diesel locomotives. It is well known that the operation processes of a fuel injection system (FIS) directly influence the power, exhaust emission, fuel economy and reliabilities of a diesel engine. The diesel engine can′t operate if the FIS breaks down. Because of the increase of injection pressure of the FIS and the use of poor quality fuel, more attention should be paid to the operation reliabilities of the FIS than ever before. So it is an urgent requirement to carry out some researches of the FIS fault diagnosis so as to maintain the diesel engine scientifically. To develop a fault diagnosis system of the FIS of diesel engines by analyzing high pressure fuel pipe (HPFP) pressure waveforms, FIS fault simulation experiments and computer simulations are carried out to study the characteristics of pipe pressure waveforms in detail. Data processing methods of the pipe pressure wave data and FIS fault diagnosis are also investigated. With the results of this thesis, many problems of the previous research work of FIS fault diagnosis carried out by other researchers are resolved effectively. The main contents are introduced as follows:

关键词： Diesel engine Fuel injection system Fuel pipe pressure waveform Numerical simulation Artificial neural networks Fault diagnosis

SINGULAR INTEGRAL EQUATIONS IN ORLICZ SPACES(Ⅰ)

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Acta Mathematica Scientia 1983年第1期3卷 71-83页

作者：邓耀华 china academy of railway sciences

Let Γ=Γi be the union of a finite number of Liapunoff’s curves Γ1,…,Γn on the complex plane, no two of which have common points. Consider the following one-dimensional singular integral equation with Cauchy kernel

关键词： SINGULAR INTEGRAL EQUATIONS IN ORLICZ SPACES 一夕 over

SIGN-REVERSAL PROPERTY FOR F-MATRICES AND N-MATRICES

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Systems Science and Mathematical sciences 1994年第4期7卷 312-316页

作者： XU Song(Graduate School,china academy of railway sciences, Beijing 100081,china) 铁道科学院研究生院北京 100081

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关键词： N-matrices F-matrices linear complementarity problem