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| 1 | Investigations on the rotordynamic characteristics of a hole-pattern seal using transient CFD and periodic circular orbit model显示文摘 | Yan Xin Li Jun Feng Zhanping | 2011 | Journal ofVibration and Acoustics2011，133，4： | 1 |
| 2 | Electrochemical synthesis of polyaniline nanobelts with predominant electrochemical performances 显示文摘 | Li Gaoren Feng Zhanping Zhong Jinhui | 2010 | Macromoleeules2010，43，5： | 1 |
| 3 | A new energy-absorbing bolt used for large deformation control of tunnel surrounding rock显示文摘In order to control the large deformation of tunnel surrounding rock,a new energy-absorbing bolt is developed.This bolt can be transformed into a rigid support when the deformation of the surrounding rock reaches the length of the sleeve tube,thus preventing the surrounding rock from continuing to deform.Moreover,this bolt has a simple structure and is easy to manufacture and assemble.Then the static tensile test is conducted on the bolt specimen to test its working performance.The test results show that when the cone angle of the cone block is small,the load–displacement curve of the bolt contains three stages;when the cone angle is large,the load–displacement curve contains only two stages.Meanwhile,both the average constant resistance and the maximum absorbed energy increase linearly with the increase of cone angle.On this basis,ignoring the influence of shear stress,and it is supposed that the thickness of the sleeve tube is constant,then the theoretical calculation formula of constant resistance for the new bolt is derived,and the rationality of the formula is verified using the static tensile test results.It is found that the error of the calculated result is less than 15%when the cone angle does not exceed 15.At last,the numerical simulation method is used to analyze the performance of the new bolt.The simulation results indicate that the generation of shear stress and the change of tube thickness during the movement of the cone block are two important factors that cause theoretical errors. | Junbao Wang Wei Liu Zhanping Song Lingfeng Li Shijin Feng Yun Cheng | 2022 | International Journal of Mining Science and Technology2022，32，5： | 1 |
| 4 | Mesoporous MnO2/carbon aerogel composites as promising electrode materials for high-performance supercapacitors显示文摘 | Li Gaoren Feng Zhanping Ou Yannan | 2010 | Langmuir2010，26，4： | 1 |
| 5 | Temperature dependency of VOCs release characteristics of asphalt materials under varying test conditions显示文摘Asphalt pavement is increasingly used in paving and roofing.However,the release of volatile organic compounds(VOCs)from asphalt harm both the environment and humans.Various methods were applied to characterize the VOCs for better understanding and inhibiting.However,asphalt VOCs have huge heating temperature dependency,which makes the asphalt VOCs’characterization complicated.In this research,three kinds of heating conditions,thermal gravimetric(TG)analyzer,pyrolysis(PY)analyzer,and thermal desorber(TD),were compared to determine the temperature dependency of VOC release characteristics.Gas chromatography and mass spectrometer(GC-MS)were then coupled for VOC detection.Results indicated that the TG heating condition can surely simulate the volatilization of VOCs from some asphalt that is not in contact with air(no oxygen)during the actual construction process,while PY and TD represent the substances released by the asphalt due to the boiling point at a certain temperature and under the actual construction process,respectively.The components detected by TG heating condition are both large and small molecules,while PY and TD heating condition will detect large molecules or small molecules,respectively.The VOC composition results under various heating conditions reflect the chemical reaction law of asphalt molecules in the heating process.When heating asphalt binders to a higher temperature,macromolecular substances will gradually crack and oxidize into small molecular substances,sulfides and nitrides.With the increase of temperature,the change trend of VOC components under different conditions is different. | Xiwen Chang Yue Xiao Yongshuang Long Feng Wang Zhanping You | 2022 | Journal of Traffic and Transportation Engineering(English Edition)2022，9，2： | 1 |
| 6 | Fatigue properties and damage constitutive model of salt rock based on CT scanning显示文摘To investigate the macroscopic fatigue properties and the mesoscopic pore evolution characteristics of salt rock under cyclic loading,fatigue tests under different upper-limit stresses were carried out on salt rock,and the mesoscopic pore structures of salt rock before and after fatigue tests and under different cycle numbers were measured using CT scanning instrument.Based on the test results,the effects of the cycle number and the upper-limit stress on the evolution of cracks,pore morphology,pore number,pore volume,pore size,plane porosity,and volume porosity of salt rock were analyzed.The failure path of salt rock specimens under cyclic loading was analyzed using the distribution law of plane porosity.The damage variable of salt rock under cyclic loading was defined on basis of the variation of volume porosity with cycle number.In order to describe the fatigue deformation behavior of salt rock under cyclic loading,the nonlinear Burgers damage constitutive model was further established.The results show that the model established can better reflect the whole development process of fatigue deformation of salt rock under cyclic loading. | Junbao Wang Xiao Liu Qiang Zhang Xinrong Liu Zhanping Song Shijin Feng | 2024 | International Journal of Mining Science and Technology2024，34，2： | 0 |
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