学科筛选

  • 3. 提速重载车轮踏面热裂纹的断裂力学安全评估

  • 【来源】

    [会议论文] 2011年全国失效分析学术会议 - 2011

  • 【作者】

    习年生  李晓宇 
  • 【摘要】

    随着我国铁路提速重载运输的发展,货车车轮踏面承受的热负荷作用越来越大,并由此产生较为严重的踏面热裂纹及剥离掉块等相关伤损.通过分析货车车轮踏面热裂纹产生机理,结合现场观察到的车轮踏面热裂纹位置和形态,建立了...

  • 【关键词】

    车轮  裂纹  安全评估 
  • 6.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【摘要】

    In order to overcome the characteristics of uncertainty and incomplete information of fault attribute in searching for fault,a new fault search method based on the fault tree and grey fuzzy multi-attr

  • 7.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【摘要】

    In order to suppress the surplus torque and improve loading precision of Electro-Hydraulic Load Simulator (EHLS),a new scheme for eliminating surplus torque-"velocity closed-loop synchronization"is pr

  • 8.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【作者】

    Bosen Chai 
  • 【摘要】

    The flow characteristics research on fluid coupling has great important meanings to raise its performance.In order to study the three-dimensional flow characteristics of fluid coupling,the internal fl

  • 9.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【作者】

    Rico H.Hansen  Torben O.Andersen  Henrik C.Perdersen 
  • 【摘要】

    Within the research field of harvesting the energy of ocean waves,fluid power has been identified as a crucial technology in the Power Take-Off(PTO)design,due to the high torque densities required in

  • 10.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【摘要】

    In order to quantitative research on internal leakage of high precision Vane Swing Hydraulic Motor,the author considers the hydraulic motor deformation caused by differential pressure.The deformation

  • 11.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【摘要】

    In this paper,k-εmodel,RNG k-εmodel and k-ω model were used for non-contact swirl sucker to the three-dimensional numerical simulation.Block division technology was used for meshing non-contact swi...

  • 12.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【摘要】

    Through the experimental study of Hydraulic Control System by 6800KN Brick Press we obtain the displacement,pressure, characteristic curve about the up and down main cylinders and floating box cylinde

  • 13.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【作者】

    Hubertus Murrenhoff 
  • 【摘要】

    Fluid Power is the drive solution when huge forces or torques need to be controlled even with challenging dynamic requirements.This Paper focuses on research results covering the range of innovations

  • 14.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【作者】

    Hyoung-Bum Kim 
  • 【摘要】

    The flow between two concentric cylinders with the inner cylinder rotating with an imposed radial temperature gradient was studied using a digital particle image velocimetry method.Two outer cylinders

  • 15.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【摘要】

    Based on the theory of fuzzy mathematics to describe working conditions of the system,which combined with experiments,to be a calculation method with membership function of normal distribution.It was

  • 16.

  • 【来源】

    [会议论文] 2011 International Conference on Fluid Power and Mechatronics - 2011

  • 【摘要】

    In order to solve the conflict between compensation effect and power consumption of heave compensation system which installed on floating drilling platform,a new type of drill string heave compensatio

  • 17. 关于举办第四期原子发射光谱分析与应用培训班的通知

  • 【来源】

    [会议论文] 2009年全国失效分析学术会议 - 2009

  • 【摘要】

    原子发射光谱分析广泛地应用于冶金、地质、环境、半导体、材料等领域中各种微量元素的分析,具有检出限低、可多元素同时分析等优点,我国每年从国外进口了数百台包括直读光谱、ICP光谱在内的原子发射光谱仪器.为了提高...

  • 18. 连续式混砂机一机两用新工艺的应用

  • 【来源】

    [会议论文] 2009中国铸造活动周 - 2009

  • 【作者】

    石秀娟 
  • 【摘要】

    本文介绍了用一台混砂机交替混制石英砂树脂砂和铬铁矿树脂砂的方法,给出了混制工艺和材料参数,并给出了应用实例.

  • 19. Sr对AS41镁合金组织和性能的影响

  • 【来源】

    [会议论文] 2009中国铸造活动周 - 2009

  • 【作者】

    耿浩然  王致明  李桢元  周国荣 
  • 【摘要】

    本文采用复合锶盐对AS41合金进行变质处理,以实现Sr对合金的变质作用.试验显示,复合锶盐变质处理时分解出的Sr离子对合金中Mg2Si有良好的变质作用,促使其由枝晶状变为均匀分布的颗粒状,颗粒状Mg2Si能够钉扎位错,延缓裂...

  • 20. 超声波功率对ZA27合金凝固组织及力学性能的影响

  • 【来源】

    [会议论文] 2009中国铸造活动周 - 2009

  • 【作者】

    郭文涛  李军文  贾征 
  • 【摘要】

    以ZA27合金为对象,在熔体保温条件下,研究了超声波功率对ZA27合金凝固组织及力学性能的影响规律.利用金相显微镜、扫描电镜对试样显微组织、断口形貌进行了观察;并测试了试样的硬度、磨损性能和冲击韧性.实验结果表明:...

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