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Experimental Study of the Airside Performance for Interrupted Fin-and-tube Heat Exchanger with Hydro
The airside heat transfer and friction characteristics of seven interrupted fin-and-tube heat exchangers with hydrophili......
The present study numerically investigates the characteristics of three-dimensional turbulent flow and heat transfer in ......
In order to better understand linear polymer aqueous solutions in soft lubrication from boundary to mixed lubrication,po......
In this study we proposed a method of selecting preferred rib height of roughness-enhanced tubes by combining the bounda......
Directly searching method for slip plane and its influential factors based on critical state of slop
In order to determine the slip plane of slope directly by the calculation results of strength reduction method, and anal......
In this paper, diamond-like carbon (DLC) films were deposited on Ti alloy by electro-deposition. DLC films were brown a......
This paper presents particle breakage and the mobilized drained shear strengths of sand with the purpose of clarifying t......
High-power pulsed magnetron sputtering (HPPMS) technology has drawn extensively attention for producing ultra-high dense......
A Comparative Study of Tribological Properties between Perfluoro and Non-perfluoro Alkylsilane Self-
The tribological properties of perfluoro and non-perfluoro alkylsilane molecular films were investigated and compared de......
Microstructure and properties of TiN/Ni composite coating prepared by plasma transferred arc scannin
The TiN/Ni composite coatings were deposited on 7005 aluminium alloy by high speed jet electroplating and then processed......
Wear characteristics of spheroidal graphite roll WC-8Co coating produced by electro-spark deposition
Electro-spark deposition(ESD) was adopted for preparing high property coatings by depositing WC-8Co cemented carbide on ......
To explore wear mechanism of stainless steel used in nuclear pump,the wear properties and the worn surface characteristi......
In this paper,a W-Cu composite coating was prepared on the Cu substrate through the double-glow discharge technology usi......
The objective of this research was to develop a novel self-lubricating coating on an AA6061 aluminum alloy.Three coating......
The dimensionless roughness length derived from dimensional analysis bears a relation to wave age,and the dimensionless ......
对高速列车制动盘进行表面改性提高耐磨性是制动盘发展的趋势,但激光熔覆镍基自熔性合金粉末后显微硬度过高,且随熔覆层厚度增加开......
Submicron Volume Roughness & Asperity Contact Friction Model for Principle Slip Surface in Flash Hea
Based on focused ion beam and shear friction apparatus data,the multi-resolutions(0.2nm–5μm) volume roughness & asperi......
Improvement of Prandtl mixing length theory and application in modeling of turbulent flow in circula
In order to correctly predict tube cross section time-smoothed velocity distribution,friction factor and mass transfer b......
为了解决光学二维线纹标准器的量值溯源和校准以及掩膜板的高精度测量,设计了高精度激光二坐标标准装置.在装置中研制了一套超精密......
采用搅拌摩擦焊实现TCl钛合金和LF6铝合金异种材料的搭接连接,并对界面特性进行研究.采用所选取的工艺参数均能获得良好的表面成形......
微观结构，磨擦并且穿石墨预先形成 andgraphite/antimony composites 的行为基于水动力学的过滤理论被分析调查在过滤网络和物理性......
在凹版印刷机运行时产生的各种摩擦力中，凹版滚筒和刮墨刀之间的摩擦力对印刷效果和凹版耐印力影响很大。本研究从微观尺度和宏观尺......
系统地研究了包括齿间摩擦在内的外载荷作用下车用增速齿轮机构中惰轮齿根的弯曲疲劳应力计算。研究表明，齿间摩擦对惰轮齿根弯曲疲......
采用真空热压烧结法制备铜-石墨复合材料,研究石墨质量分数分别为2%、5%和10%时,复合材料的密度、显微硬度、三点弯曲强度和摩擦磨......
为降低活塞环、缸套摩擦副的磨损和改善配副性，采用激光熔覆和电镀技术在球墨铸铁表面分别制备原位析出颗粒增强金属基复合材料表层......
研究了轴承钢表面的纳米磷酸盐薄膜对轴承钢表面摩擦性能的影响。采用PHIS595SAM型俄歇能谱仪对Gcr15轴承钢试样表面纳米磷酸盐薄......
为提高钛合金表面耐磨性能,运用电火花沉积技术在TC11钛合金表面原位反应沉积TiN强化层,研究N2流量对强化层显微组织和摩擦学性能......
为研究超声振动辅助成形的内在机理,设计一套25kHz高频超声振动装置,配合试验机进行1050铝合金静态及振动辅助条件下的压缩试验。......
选用GCr15钢盘和GCr15球作为摩擦副，在NGY‐6纳米润滑膜测量仪上开展球‐盘点接触摩擦副在润滑状态下的滑滚摩擦磨损实验，研究不同接......
为了研究纱束间摩擦因数对飞艇蒙皮织物复合材料撕裂强度的影响,通过单轴拉伸试验测试蒙皮的拉伸强度、弹性模量等基本力学性能;利......
为了简化集聚纺纱结构、降低老机改造费用，分析了集聚纺纱装置的发展，重点论述了集聚纺纱装置网格圈传动方式及其设计原理上的缺陷，通......
纳米复合材料是目前的研究热点，采用热压烧结法制备了纳米Al2O3颗粒强化铜基复合材料。采用阿基米德排水法测试了复合材料的致密度，......
对颗粒物质特性的应用在人民生活中起着不可或缺的作用，在我国古代科技实用中更有着不可忽略的地位。以现代颗粒物质力学进展为基础......
国华某电厂亚临界4×330MW汽轮机组,均在稳定运行数月后2、3号瓦出现较为严重的间隙性振动问题。经过对同类型机组调研和分析,......
搅拌摩擦点焊是一种新型固相焊接技术,机器人焊接是焊接制造业的主要发展方向,将搅拌摩擦点焊与机器人相结合,通过加工相应的焊接......
以精制菜子油为基础油,在四球摩擦磨损试验机上考察了几种硫化脂肪对菜子油摩擦化学性能的影响.实验结果表明,几种硫化脂肪均能明......
分析和讨论了非牛顿流体流动的流变特性、静态混合器的几何本数和单元数及操作参数对非牛顿流体的压力降和摩擦因子的影响。并得到......
根据多绳摩擦提升机的具体工况，分析钢丝绳与衬垫之间的接触形式以及实际接触面积对摩擦传动的影响，获得了相对滑速和比压与摩擦系数......
本研究以丝素为保护剂，葡萄糖为还原剂，制备丝素纳米银水溶液，其纳米银粒径在10nm左右，具有良好的分散性和稳定性。棉织物经丝素纳米银......
分析精密机床直线伺服系统的摩擦力,掌握了从静止到加速直线伺服系统摩擦力变化的四个阶段.深入研究了摩擦力对直线伺服系统动态性......
采用机械加工技术在硼磷合金铸铁缸套表面制备了12种微坑型织构,并采用机械球磨的方式填充3种固体润滑剂,研究了其在200r/min、150......
在与现有立井井筒非采动破裂治理方法对比的基础上,分析了混凝土灌注摩擦桩加固地层的井壁破裂治理新方法的可行性及优缺点,并采用......
利用自行研制的新型摩擦测试装置，对铝合金板成形过程拉深筋部位摩擦因数进行了测试实验。探讨了压边力、拉延速度、润滑状态等3种......
采用微弧氧化技术，在钛合金表面原位合成含有羟基磷灰石的生物活性陶瓷涂层，研究了陶瓷涂层的摩擦磨损性能，得出了不同磨损时间和不同......
根据超塑性材料的应变率路线和材料基于多尺度失效准则,针对材料的晶粒和空洞微观结构,使用有限元数值分析技术,建立应变率相关的......
为了对激光技术在拉延模表面的性能影响进行研究，从激光毛化微凸体形貌特征及拉延成形中摩擦行为特点的角度，研究了在拉延成形过程中......
-In order to analyze the stability of pipelines on the sea bed, the friction characteristics at the pipe-soil interface ......
颗粒状物质是介于固态和液态之间的一种特殊的物态形式，有其独特的物理性质．我们通过计算机模拟实验，研究波在颗粒物媒质中的传播速度......
