机械与运载工程领域颠覆性技术战略研究

通过文献研究和专家访谈等方法,提出机械与运载工程领域已有或潜在的颠覆性技术:仿生智能技术、无轴轮缘推进技术、智能无人飞行器技术、超回路列车技术和微机电系统,对这五项技术的创新性和颠覆性优势进行了分析,最后提出机械与运载领域颠覆性技术的发展建议。

运载车智能装卸机械的控制系统研究

该文分析了双缸同步系统的速度控制问题 ,并提出了硬件与软件相结合的解决措施 ,应用于运载车智能装卸系统中 。

并联机床机构的分析

介绍了并联机构的产生、发展及其应用,阐述了并联机床的发展,并对并联机床机构进行了位置、运动及其空间分析。

河北总投资20亿元专用车项目开工

日前，由中大汽贸有限公司、中国重汽集团路神专用汽车有限公司、德国GHH集团共同投资的年产3万辆专用汽车项目在河北威县经济开发区开工建设。该项目总投资20亿元，主要生产矿用运载机械、巷道掘进设备、专用汽车、汽车车桥及各种部件。

Mechanism of hydro-viscous soft start of belt conveyor

The mechanism of a hydro-viscous soft start is of great importance in the design of a hydro-viscous clutch and its control system. To explain the mechanism of a hydro-viscous soft start, the startup process of a belt conveyor was numerically analyzed with the modified Reynolds equation, an energy equation and a temperature-viscosity equation. The effect of temperature and grooves of the friction disk surface on torque transfer and load capacity of the oil film have also been analyzed. The results show that 1) the grooves are the basis of forming dynamic pressure but they may reduce the capacity of torque transfer to a certain extent, 2) during the startup process, temperature has little effect on torque transfer and load capacity and the variation in load capacity of the oil film is very small, indicating that it is preferable to use the flow rate as a control object than the pressure of the feed cylinder. The results have been verified by an experiment.

法国至武汉首条货运铁路开通 比海运省时40天

中国官方媒体新华社报道称，由汉欧国际物流公司运营的汉新欧班列首班列车于4月6日在武汉吴家山铁路中心站出发．运载机械、电子和化工产品的列车将经过新疆阿拉山口出境，之后穿越哈萨克斯坦、俄罗斯、白俄罗斯、波兰以及德国境内、全程约11300公里．用时约16天。