GJT25-09型煤层气专用固井半挂车研制

煤层气勘探开发井的钻井深度浅、固井作业压力低、水泥浆用量少,使用常规固井设备时操作复杂、经济性不高。采用一体化结构设计,实现固井车的混浆单元、泵送单元、供灰单元、供气单元的集成设计。利用“双泵合流-双马达串/并联切换”技术,实现设备全液压驱动,开发了煤层气专用固井半挂车,并介绍了该车的技术参数、技术与结构特点、测试应用情况。可对煤层气固井作业起到较好的降本增效作用,对煤层气的大力开发提供支持。     

双锥平衡密封盖在装酸槽车上的应用

在装酸槽车上采用了“双锥平衡密封盖”，解决了汽车运输过程及贮罐贮存中酸雾对环境的污染问题，并实现了装卸过程中的压力自控，从而简化了操作，减少了浪费，取得了良好社会经济效益。     

管束式集装箱的组装工艺和型式试验要求

大容积无缝钢瓶、管柬式集装箱和长管拖车作为专用气体储运装备在我国使用和制造已有10年时间，在检验检测和安全监管方面已基本形成相应的安全规范，但设计制造缺乏标准支撑。本文对管柬式集装箱的设计制造资质、组装工艺和型式试验要求进行简要介绍，包括大容积无缝钢瓶和长管拖车的相应要求。     

Prejudicial Narratives: Building Tomorrow's World Today

Film production requires world building: the power to visualise and bring to life narrative through a film's total environment. This is often entirely speculative, imagining alternative or future worlds. Here, Alex McDowell , acclaimed British production designer, producer and Professor at the University of Southern California (USC) describes his world-building, narrative approach to production design, which he consolidated in the Steven Spielberg film Minority Report (2002) that envisioned Washington DC in the year 2050. The possibilities of this storytelling technique are demonstrated by its transference into real-life projects, such as the immersive model that his production company, 5D GlobalStudio, developed for Al Baydha, a Bedouin village in Saudi Arabia.     

反向训练 影像传媒与空间知觉的多义性

作者从视知觉心理学的角度出发,论述当代影像媒介对空间知觉所进行的反向训练,并以“深度”、“框”和“序列”为例,具体分析有关空间的概念在这一训练过程中发生了怎样的变化,进而指出空间知觉在当代传媒环境下的一种总体趋向,以及这一转变的认知心理机制。     

组合式多轴重型挂车车架结构改进与优化设计

以组合式多轴重型挂车车架为研究对象,采用APDL参数化语言编制了优化设计程序,对车架2种工况下的强度和刚度进行了分析,并对车架结构进行了优化与改进.得到了满足结构强度的车架最佳优化设计方案.     

拖挂式机泵组的研制及使用

介绍一种TJBZ01型拖挂式机泵组．它采用30t高低高拖挂式汽车底盘，配置Cat公司3412E型柴油机、BY801D型液力变矩器、F-800型或F-1300型泥浆泵。该型机泵组质量可靠，操作简单．移运性好。     

超声导波技术检测长管拖车气瓶研究

为了解决长管拖车气瓶瓶体内部缺陷快速无损检测的难题，利用超声导波技术对长管拖车气瓶试块进行检测。结果显示：超声导波技术一次检测的距离沿波束方向可以达到1m，并且可以准确的发现不同大小的V形槽缺陷。缺陷的位置和长度大小可以准确的测量，并且和实际测量值取得了良好的符合。试验结果很好地证明了超声导波技术的快速准确的优点，对实际现场检测具有指导意义。     

Hydrogen supply chain scenarios for the decarbonisation of a German multi-modal energy system

Analysing hydrogen supply chains is of utmost importance to adequately understand future energy systems with a high degree of sector coupling. Here, a multi-modal energy system model is set up as linear programme incorporating electricity, natural gas as well as hydrogen transportation options for Germany in 2050. Further, different hydrogen import routes and optimised inland electrolysis are included. In a sensitivity analysis, hydrogen demands are varied to cover uncertainties and to provide scenarios for future requirements of a hydrogen supply and transportation infrastructure. 80% of the overall hydrogen demand of 150 TWh/a emerge in Northern Germany due to optimised electrolyser locations and imports, which subsequently need to be transported southwards. Therefore, a central hydrogen pipeline connection from Schleswig-Holstein to the region of Darmstadt evolves already for moderate demands and appears to be a no-regret investment. Furthermore, a natural gas pipeline reassignment potential of 46% is identified.     

重型组合式多轴挂车转向机构的优化设计

对重型组合式多轴挂车的转向机构进行了分析，推导出了转向机构各部件之间的运动关系式，在此基础上建立了这类挂车转向系统机构的优化设计模型。应用复合形优化算法对建立的优化模型进行优化求解，并使用Ⅶ语言编写了图形用户界面程序。使用该优化程序对某专用车辆厂生产的多轴挂车转向机构进行了优化设计，计算结果表明该方法正确实用。