柔性技术在汽车制造行业的应用

柔性技术在汽车行业的应用可以减少新设备的投入和生产线改造,确保新产品切换时改动量最小,以投入较少的设备费用来实现共线生产。文章详细地阐述了几种典型柔性技术的特点及其在实际生产中的应用,指出柔性技术在检测设备、工艺装备及整车开发的广泛使用,可在有限的规划区域内满足多方面的制造需求,并且降低生产成本。     

ATB-25柔性基层配合比设计

介绍了ATB-25柔性基层的配合比设计方法及过程.     

浅谈基层就地冷再生技术在辽宁省的应用

在道路养护施工方案中,道路基层就地冷再生以其适用范围广、对公共交通影响小、节约工期、再生层质量高、节省成本和国家土地资源、环保等诸多优势正在成为现有道路养护施工中的热门方案,它的发展必将代替传统的旧路面基层施工.     

被动柔性防护网结构足尺冲击试验研究

为研究被动柔性防护网结构的落石防护性能,设计2组防护能级为750 k J的柔性被动防护网结构,进行足尺冲击试验研究。模型1为按照现有标准所选型得到的系统配置;模型2为改进后的柔性被动防护网结构。试验结果表明:模型1无法拦截750 k J落石的冲击,系统崩溃;模型2成功地拦截了落石,且冲击后模型2的各主要组成构件等均未发生破坏,仅需要对耗能元件进行更换,即可继续投入使用。通过对高速视频的解构,对各部分组成构件的运动和受力特征进行详细分析,明确系统的三阶段工作历程,并分析系统失效的关键因素,同时,对实测的钢丝绳拉力时程进行对比分析。研究结果为今后柔性被动防护网结构的设计提供了理论基础。     

汽车柔性多体系统动力学建模综述

对汽车柔性多体系统动力学的建模理论、方法、作用以及国内外发展状况和目前我国在这方面的差距，作了简要的综述。应用汽车柔性多体系统动力学的建模理论和方法，可以较精确地建立整车或总成的分析模型，进而实现虚拟样车的设计和动力学仿真分析及优化。     

连续刚构桥主墩刚度合理性的探讨

根据连续刚构桥主墩受力特点,找出顺桥向双薄壁墩(实心和空心)的柔性所需的宽度b;在主梁悬臂施工中产生的不平衡弯矩所需两薄壁墩抗弯刚度的两墩间距H。其计算公式简单、可靠并附计算示例,为连续刚构桥尺寸拟定时作参考。     

君威轿车本土化快速自主开发及其关键技术

泛亚汽车技术中心在多年引进消化国际先进技术基础上,以中高级轿车产品为突破点,集中对市场分析与本土化产品定义、产品平台的再次开发、多品种混线生产与垂直换型、数字化设计与实验分析、产品开发过程的全球协同管珲等5个方而的火键技术进行了研究和开发,形成了完整的中高级轿车本土化快速自主开发平台、技术能力和管理体系,并成功应用到君威系列轿车开发中,使合资企业在自主开发上开拓出新的途径。     

Flexible transport services: A new market opportunity for public transport

The term Demand-Responsive Transport (DRT) has been increasingly applied in the last 10 years to a niche market that replaces or feeds (usually via small low floor buses or taxis) conventional transport where demand is low and often spread over a large area. More recently, the concept of DRT as a niche market has been broadened to include a wider range of flexible, demand-responsive transport services and is increasingly referred to as Flexible Transport Services (FTSs). The contention of this paper is that well-implemented FTS has the potential to revitalise bus-based public transport services which are traditionally based on fixed networks with variable geographical coverage and levels of service.     

Recent developments in Flexible Transport Services

This paper focuses on recent experiences in the evolution of Flexible Transport Services (FTS). It describes how previous manifestations of FTS provided dedicated solutions for special groups, often in parallel to the conventional public transport network, but highlights that in numerous countries across Europe there is now a discernable trend towards open access FTS providing services for the whole community and often feeding the conventional public transport network to provide wider access and opportunities. This is as a result of policies intended to mainstream services for people with disabilities and moves to tackle social exclusion amongst other groups while at the same time reducing the very high costs per trip associated with STS.To meet these policies, and the higher expectations and different travel behaviours of citizens to-day, it is suggested that FTS will need to radically reposition itself in terms of scale, so that there is mass coverage and ability to function as a full transport mode. This will require breakthroughs in concepts; business models; organisational and operational models; and in supporting technologies. A proposed solution to this is the Flexible Agency for Collective Mobility Services (FAMS) which provides an organisational structure and business model for FTS that incorporates the required supporting technologies.