硬件在环技术在汽车变速器开发中的应用

随着2017年汽车销量快接近3000万大关的时候,如何更快更好地推出新的车型满足市场需求,成为了各大整车开发企业迫在眉睫的任务。然而,作为汽车核心子系统之一的变速器总成,国内对于汽车变速器开发相对起步较晚,尤其是自动变速器的开发,一直受制于国外资源,已经跟不上蓬勃发展的汽车事业。基于以上考虑,在变速器开发流程中引入硬件在环测试仿真技术,研究如何利用硬件在环测试技术,压缩变速器开发周期,减小变速器开发风险。

DFMEA技术在某重型汽车变速器开发中的应用

本文首先对DFMEA技术进行概述,然后探讨重型汽车变速器的失效模式及其原因,之后分析基于DFMEA技术的重型汽车变速器的失效模式控制措施,最后从润滑性能试验、疲劳寿命试验、静扭强度试验、同步器试验、噪声试验、强制脱挡试验等方面阐述DFMEA技术在重型汽车变速器开发试验中的应用。

Recycling and Transmutation of Spent Fuel as a Sustainable Option for the Nuclear Energy Development

The objective of this paper is to discuss the option of recycling and transmutation of radioactive waste against once-through fuel cycle based on uranium feed under the perspective of sustainability. A qualitative analysis was carried out to compare the fuel cycles considering different options for burning and recycling transuranic and fission products utilizing accelerator driven systems, fast reactors, and light water reactors. The results show that recycling and transmutation fuel cycles are more attractive than the current once-through fuel cycles from the point of view of sustainability. The main conclusion is that the decision about the construction of deep geological repositories for spent fuel disposal must be reevaluated.