电控机械式自动变速器车辆坡上起步控制研究

电控机械式自动变速器车辆坡上起来的控制一直是一个难点。本文针对坡上起步辅助装置的应用，对起步阻力辩识和离合器工作过程进行了系统的研究，制定了坡上起步的最佳控制策略。     

尼桑汽车起动系和充电系控制电路分析及故障检修

叙述了尼桑汽车起动系、充电系的先进性和保护完善性；详细地介绍了起动系和充电系控制电路的原理及故障诊断。所给出的检修实例，对于准确、快速地检查、确定并排除尼桑汽车起动系及充电系控制电路的故障具有实际意义。     

我国汽车金融业的发展现状及趋势展望

首先分析了国内外汽车金融业的发展状况，并从当前我国汽车金融业存在的问题入手，着重从内部和外部环境2个方面进行了分析，从而有针对性地提出了我国汽车金融服务的改革思路和解决相关问题的政策建议，并对未来发展趋势作出理性预测和判断，制度设计上更趋于合理、完善；服务质量和水平逐步与国际接轨；竞争推动下的具有中国特色的金融创新渐趋活跃。在此基础上笔者设想了一种银行一体化的营销模式，权当为未来银行汽车金融业务的开展作一有益尝试。     

南宁市江南堤路园工程西园段填筑路堤后岸坡稳定性分析

通过广泛收集大量相关资料、水下测量、工程补勘及室内试验,结合岸坡稳定的各种工况,循序渐进地反复试算,综合评价南宁市堤路园工程西园段路堤加载对岸坡稳定性的影响.研究结果认为,本工程场地是稳定的;现有的钢筋砼堤也是稳定的;该段路堤加载对岸坡不产生新的稳定性问题.西园段堤路园中的道路采用填土方案是可行的.该研究为江南堤路园工程西园段的建设提供决策依据,并为设计提供技术支持.     

提速改线工程路基施工质量控制

介绍为达到铁路提速要求,改线工程和改善设备状态是关键。施工必须统一思想,明确目标,加强管理,严格标准,控制质量,特别对改移较大的曲线地段路基工程,采取多种措施、优质、出色地完成了施工任务。     

军用轻型全地形车的发展现状及趋势分析

介绍了国外军用轻型全地形车的发展现状，分析了轻型全地形车的性能特点和关键技术，对其发展趋势作出了预测。     

Development and calibration of a long-distance passenger traffic assignment model

This paper studies the assignment of long-distance passenger traffic on a highway corridor network. First, we propose a traditional model for the long-distance traffic assignment considering interactions with local commuter traffic. It addresses the effect of local networks on highway corridors. An iterative algorithm is developed to solve for the exact solution. Then, to address the potential computational issues that arise therein, a decomposition method is proposed by introducing a new concept of corridor elasticity. An assignment procedure for long-distance passenger traffic is developed accordingly. Numerical tests show that the proposed decomposition method makes significant improvements in computational performance at a small loss of optimality. This decomposition method well approximates the exact assignment from the traditional formulation, especially when the highway corridors are near-saturation. The proposed decomposition method appears practical for application.     

50000 DWT级散货船轮机设计特点

主要介绍了50 000 DWT散货船轮机设计特点,通过选用大缸径柴油机提升经济性,申请螺旋桨轴状态监控(SCM)和轮机循环检验(CMS)附加符号减少船东使用成本,可供内贸散货船设计借鉴.最后对此船型后续优化提出了建议,从降低上层建筑风阻、采用TIER Ⅱ主机,进一步提升节能环保性.     

Dynamic Behavior of Two Part Towing Cable System During Turning

An improved numerical method is used to simulate the dynamic behavior of a two part towing cable systems during turnings. In U turns and full turns, periodical heave motions are found both for the towed vehicle and for the depressor. Periodic motions of the subsea units and of the cable surface tension are closely related to the turning parameters, such as turning velocity and turning radius. System parameters, such as length of the second cable and the vehicle hydrodynamics, also damp turning instability.     

基于母线并联元件模型的船用中频系统潮流计算与实验验证

针对宽幅压变化的直流电机驱动通风机速度性能差的情况,在不需要速度闭环的前提下,为电机所带风阻性负载稳速准确度在10%以内,设计出了一种稳速装置。基本能满足此类电机负载的要求。文章介绍了稳速装置的工作原理和设计方法,通过实验验证可对直流通风电机进行有效控制。