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arches subjected to step loads CHEN Yao(陈耀)1, 2, FENG Jian(冯健)1, 2 1. Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096... be induced when shallow arches were subjected to vertical step loads. In-plane static and dynamic buckling of shallow pin-ended parabolic arches with a horizontal cable was investigated. Based......
关于STEP中性文件数据结构的研究及实现董晓岚,黄筱调摘 要:STEP中性文件作为STEP标准最为广泛的应用,成为当下主流CAD/CAM系统无一不支持的输入输出中性格式,无论是实现CAX系统间的数据集成,还是二次开发都需要解读STEP中性文件的信息模型.这里就此给出简要阐述,并介绍了STEP中性文件前后处理器的实现方法.关键词:STEP中性文件;信息模型;前后处理器;......
XML在基于STEP的公差模型表达中的应用李登万四川工程职业技术学院 德阳618000摘 要:利用XML实现产品数据的网络化应用,是基于STEP标准的产品数据的XML表达.探讨基于STEP标准的公差模型表达方法,提出一种公差模型的数据结构,用数据化描述语言EXPRESS来定义数据结构,将STEP文件转换为相应的XML中性文件,建立XMLSchema库,以实现网络环境下的数据共享.关键词:STEP标准;公差模型;EXPRESS;网络化制造;......
J. Cent. South Univ. (2020) 27: 1557-1571 DOI: https://doi.org/10.1007/s11771-020-4390-2 Structure optimization and flow field simulation of plate type high speed on-off valve WANG Xiao-jing(王晓晶... 150080, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: There is a relatively complex flow state inside the high speed on-off valve, which......
J. Cent. South Univ. (2012) 19: 1980-1987 DOI: 10.1007/s11771-012-1235-7 Nonlinear flow numerical simulation of low-permeability reservoir YU Rong-ze(于荣泽)1, BIAN Ya-nan(卞亚南)1, ZHOU Shu(周舒)2... 2012 Abstract: A nonlinear flow reservoir mathematical model was established based on the flow characteristic of low-permeability reservoir. The well-grid equations were deduced and the dimensionless......
to simulate the flow of abrasive medium in up and down motion is as follows: v = 0.003×STEP(10-t)+0.003×STEP(t-11) (3) where v is the working velocity of the abrasive... Uniform surface polished method of complex holes in abrasive flow machining A-Cheng WANG, Lung TSAI, Kuo-Zoo LIANG, Chun-Ho LIU, Shi-Hong WENG Department of Mechanical Engineering......
was utilized to couple pressure-velocity of each time-layer with dimensionless time step of 0.02. 3 Results and discussion The simulation results show that the periodically unsteady flow around a square...J. Cent. South Univ. Technol. (2008) 15: 564-568 DOI: 10.1007/s11771-008-0106-8 Numerical simulation of flow around square cylinder using different low-Reynolds number turbulence models ZHANG......
J. Cent. South Univ. (2018) 25: 1690-1700 DOI: https://doi.org/10.1007/s11771-018-3860-2 Application of time–frequency entropy from wake oscillation to gas–liquid flow pattern identification HUANG...-Verlag GmbH Germany, part of Springer Nature 2018 Abstract: Gas–liquid two-phase flow abounds in industrial processes and facilities. Identification of its flow pattern plays an essential role......
Article ID: 1003-6326(2005)02-0452-05 FE simulation and process analysis on forming of aluminum alloy multi-layer cylinder parts with flow control forming WANG Xin-yun(王新云), WU You-sheng(吴有生... in airbag of car were studied with flow control forming(FCF) method, which was a good way to low forming force and better mechanical properties. The key technology of FCF was the design of control......