国家重点基础研究发展计划(2009CB724304)

作品数：27被引量：421H指数：11
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Thermal Fluid-Solid Interaction Model and Experimental Validation for Hydrostatic Mechanical Face Seals被引量：10
《Chinese Journal of Mechanical Engineering》2014年第5期949-957,共9页HUANG Weifeng LIAO Chuanjun LIU Xiangfeng SUO Shuangfu LIU Ying WANG Yuming 
Supported by National Basic Research Program of China(973 Program,Grant No.2009CB724304);National Key Technology R&D Program(Grant No.2011BAF09B05);National Natural Science Foundation of China(Grant No.50975157)
Hydrostatic mechanical face seals for reactor coolant pumps are very important for the safety and reliability of pressurized-water reactor power plants.More accurate models on the operating mechanism of the seals are ...
关键词：mechanical face seal HYDROSTATIC thermal fluid–solid interaction EXPERIMENT 
薄衬层结构滑动轴承润滑膜厚度的超声检测方法被引量：7
《西安交通大学学报》2014年第8期80-85,共6页耿涛 孟庆丰 贾谦 张凯 袁小阳 
国家重点基础研究发展计划资助项目(2009CB724304);国家自然科学基金资助项目(51275380)
针对薄衬层结构滑动轴承润滑膜厚度超声检测时多次反射回波相互叠加而无法求取膜厚的问题,提出了超声回波信号叠加时润滑膜厚度的求解方法.根据叠加信号的频域分析方法,对薄衬层结构滑动轴承的润滑膜厚超声检测方法进行了理论分析.在原...
关键词：润滑膜厚 超声检测 薄衬层 叠加信号 
Influence of Blade Wrap Angle on Centrifugal Pump Performance by Numerical and Experimental Study被引量：11
《Chinese Journal of Mechanical Engineering》2014年第1期171-177,共7页TAN Lei ZHU Baoshan CAO Shuliang BING Hao WANG Yuming 
supported by National Natural Science Foundation of China(Grant Nos.51176088,51179090);National Basic Research Program of China(973 Program,Grant No.2009CB724304);General Financial Grant from the China Postdoctoral Science Foundation(Grant No.2011M500315);Open Research Fund Program of State Key Laboratory of Hydroscience and Engineering of China(Grant No.sklhse-2012-E-02)
The existing research on improving the hydraulic performance of centrifugal pumps mainly focuses on the design method and the parameter optimization. The traditional design method for centrifugal impellers relies more...
关键词：blade wrap angle centrifugal pump performance numerical simulation EXPERIMENT 
An experimental investigation of tribological performance of triangular textures in water lubrication regime被引量：6
《Science China(Physics,Mechanics & Astronomy)》2014年第2期273-279,共7页XIE Yi LI YongJian WANG YuMing SUO ShuangFu LIU XiangFeng 
supported by the National Basic Research Program of China(Grant No.2009CB724304);the National Key Technology R&D Program(Grant No.2011BAF09B05);the National Natural Science Foundation of China(Grant No.50975157)
Surface texturing has been considered as an effective approach to improve the tribological performances.Based on the consideration of enhancing the tribological performance,the experiments are carried out to investiga...
关键词：triangular textures tribological anisotropy friction reduction 
基于长程泄漏补偿的迭代插值FFT方法及应用被引量：4
《振动与冲击》2013年第22期1-6,共6页刁瑞朋 孟庆丰 
国家自然科学基金资助项目(51275380;51175049);国家973重点基础研究发展计划资助项目(2009CB724304)
针对传统频域插值傅里叶变换参数估计精度低的问题,在分析频谱泄漏产生原理基础上,提出适用于多频信号的高精度频域迭代插值方法。该方法先利用传统插值法估算信号各频率参数,然后利用信号的估计参数值计算泄漏补偿因子,并用补偿因子重...
关键词：长程泄漏 频谱分析 迭代插值 参数估计 
A mass-conservative average flow model based on finite element method for complex textured surfaces被引量：9
《Science China(Physics,Mechanics & Astronomy)》2013年第10期1909-1919,共11页XIE Yi LI YongJian SUO ShuangFu LIU XiangFeng LI JingHao WANG YuMing 
supported by the National Basic Research Program of China(Grant No.2009CB724304);the National Key Technology R&D Program(Grant No.2011BAF09B05);the National Natural Science Foundation of China(Grant No.50975157);the Key Research Program of the State Key Laboratory of Tribology of Tsinghua University(Grant No.SKLT08A06)
A mass-conservative average flow model based on the finite element method(FEM) is introduced to predict the performances of textured surfaces applied in mechanical seals or thrust bearings.In this model,the Jakobsson-...
关键词：mass-conservative average flow model complex textured surfaces JFO boundary conditions finite element method 
The effect of surface roughness on thermal-elasto-hydrodynamic model of contact mechanical seals被引量：13
《Science China(Physics,Mechanics & Astronomy)》2013年第10期1920-1929,共10页WEN QingFeng LIU Ying HUANG WeiFeng SUO ShuangFu WANG YuMing 
supported by the National Basic Research Program of China(Grant No.2009CB724304);the National Natural Science Foundation of China(Grant No.51275268);the National Science and Technology Support Plan(Grant No.2011BAF09B05)
In this paper, the effect of surface roughness on sealing clearance, pressure distribution, friction torque and leakage is studied by the thermal-elasto-hydrodynamic mixed lubrication model. A convergent nominal clear...
关键词：contact mechanical seals mixed lubrication thermal-elasto-hydrodynamic model surface roughness 
一种衰减信号加窗频域插值算法被引量：5
《西安交通大学学报》2013年第7期85-90,共6页刁瑞朋 孟庆丰 
国家重点基础研究发展规划资助项目(2009CB724304);国家自然科学基金资助项目(51275380;51175049)
为了提高多频衰减正弦信号参数估计的精度,提出了一种加窗频域插值算法。先利用信号加窗技术对时域信号施加Hanning窗,然后利用频域插值方法计算出频率和衰减因子等参数值。结合Hanning窗和频域插值的方法,不仅可减小远程泄漏的影响,而...
关键词：衰减信号 频域插值 参数估计 频谱泄漏 
振动信号无线传输的数据压缩编码算法被引量：12
《振动．测试与诊断》2013年第2期236-240,338,共5页王楠 孟庆丰 郑斌 
国家自然科学基金资助项目(50875196);国家重点基础研究发展计划("九七三"计划)资助项目(2009CB724304)
无线传感器网络节点资源非常有限,若实时采集传输振动信号,由于信号变化快,数据量大,网络节点将会因为资源过早耗尽而失效,并且上位机需要很大的数据存储空间。为了解决上述问题,提出了一种针对振动信号进行压缩编码的算法,并编程将其...
关键词：振动信号 无线传感器网络 5 3提升小波 嵌入式零数小波 霍夫曼压缩编码算法 
Cavitation flow simulation for a centrifugal pump at a low flow rate被引量：22
《Chinese Science Bulletin》2013年第8期949-952,共4页TAN Lei ZHU BaoShan CAO ShuLiang WANG YuMing 
supported by the National Natural Science Foundation of China (51176088 and 51179090);the National Basic Research Program of China (2009CB724304);the Open Research Fund Program of State Key Laboratory of Hydroscience and Engineering (sklhse-2012-E-02)
A computational model on the basis of the combination of the full cavitation model and the modified re-normalization group (RNG) k-ε turbulence model are used to simulate the cavitating flow in a centrifugal pump at ...
关键词：流动模拟 离心式泵 空化模型 低流速 湍流模型 计算模型 功能介绍 实验测量 
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