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(2008)04-0781-06 Analysis and comparison of aerodynamic performance of container flat wagon LIANG Xi-feng, HU Zhe-long, LIU Tang-hong (Key Laboratory for Traffic Safety on Track of Ministry... different design options of 160 km/h container flat wagon was analyzed and compared using finite volume method. The three design options are as follows: the first design option has no headwall and the side......
quenched in flat die MU Yan-hong(慕延宏), WANG Bao-yu(王宝雨), ZHOU Jing(周靖),HUANG Xu(黄旭), LI Jun-ling(李俊玲) School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China... of 30MnB5 and 22MnB5 quenched in flat die [J]. Journal of Central South University, 2018, 25(4): 736–746. DOI: https://doi.org/10.1007/s11771-018-3778-8. 1 Introduction Increasing advanced high strength......
of column is the best choice for punching capacity prediction of flat plates and 0.5h0 is appropriate for that of column footings. The Chinese and American codes take the control perimeter affine in shape.... These conclusions are helpful for improvement of current code approaches to punching shear design. Key words: punching shear; control section; flat plate; column footing
but decreases below it; 3) With θ increasing, the lateral force on the mid vehicle firstly increases but decreases as θ=75°; 4) When the 6-axis X2K flat car loads empty boxes of a 40 ft and a 48 ft at 120 km/h, the overturning wind speed is 25.19 m/s, and the train should be stopped under the 12th grade wind speed. Key words: numerical simulation; 6-axis X2K flat car; loading form; lateral......Lateral aerodynamic performance and speed limits of double-deck container vehicles with different structures
来源： 《中南大学学报(英文版)2012年第7期》——李燕飞 田红旗
中图分类号:TG 335 文献标识码:A Lateral spreading deformation behavior in flat rolling of copper cladding aluminum composite rods LUO Yi-bing, LIU Xin-hua, XIE Jian-xin... in cold flat rolling of copper cladding aluminum(CCA) composite rod was investigated. The results show that sidepiece deformation spreading is dominant in the first flat rolling pass. However......
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performance of flat heat pipe based on air-conditioning energy recovery XIAHOU Guowei1, XIE Mingfu1, KONG Fangming1, 2, YANG Caiyun3 (1. College of Energy and Dynamic Engineering, Changsha University...%, which can be used to exhaust energy recovery of air-conditioning system. Key words: air-conditioning; energy recovery; flat heat pipe; heat transfer performance 随着社会的快速进步发展,人们对居住环境舒适性的要求越来越高,暖通空调系统及设备成了人......
sedimentary micro-facies in the north slope of Tazhong area 图4 塔中地区晚奥陶世台缘礁滩相平面分布图 Fig. 4 Distribution map of Late Ordovician reef flat facies developed in platform margin of Tazhong area... on the edge of platform, which composed reef flat deposit, were recognized, calibrated and analyzed from the combination type difference of reef, mound and shoal, combining with paleostructure......
μm时,金属间化合物层对电阻率的影响不明显. 关键字:连铸-轧制法；铜包铝扁排；退火；界面；性能 中图分类号:TG156.2 文献标志码:A Effect of annealing temperature on texture and properties of copper cladding aluminum flat bar... cladding aluminum (CCA) flat bar was fabricated by continuous casting-rolling technology, and then, the effects of annealing temperature on the texture, interface structure and bonding strength......
微通道热泵热水器对比研究[J]. 广东化工, 2017, 44(18): 156-158. SHI Yongkang, YANG Qingcheng, DING Xiaojiang, et al. The comparative study between outer coil micro-tube heat pump water heater with condenser standing...): 1147-1152. WU Jianghong, LI Huixi, YOU Shaofang. Heat transfer characteristics of micro-channel condenser and copper pipe condenser in heat pump water heater[J]. Acta Armamentarii, 2015, 36(6......
