浅析汽车线束端子压接技术规范

文章针对线束端子压接质量技术标准、端子压接部位尺寸信息数据库建立等方面进行总结概括,同时结合日常生产加工经验,提出对线束端子压接的策划方案,给同行在工作中以参考和指导。

An Analytical Approach for Assessing the Collapse Strength of an Unbonded Flexible Pipe

This paper presents an analytical scheme for predicting the collapse strength of a flexible pipe, which considers the structural interaction between relevant layers. The analytical results were compared with a FEA model and a number of test data, and showed reasonably good agreement. The theoretical analysis showed that the pressure armor layer enhanced the strength of the carcass against buckling, though the barrier weakened this effect. The collapse strength of pipe was influenced by many factors such as the inner radius of the pipe, the thickness of the layers and the mechanical properties of the materials. For example, an increase in the thickness of the barrier will increase contact pressure and in turn reduce the critical pressure.

梦天对日定向装置至舱内功率传输设计与实现

为解决梦天实验舱对日定向装置输出110 V高电压、50 kW大功率供电传输至资源舱内过程中,定向装置输出端导线与资源舱穿舱电缆网接口不匹配导致的传输效率和可靠性下降以及热消耗增大的问题,设计了两种高电压大功率背景下供电传输连接方案。通过对比分析论证,优选了模压式压接方案。经过充分的仿真分析、环境试验验证、集成综合实验验证,该方案在最终的空间站梦天实验舱在轨运行过程中获得了成功,保证了舱内外高可靠、高效率的功率传输和型号任务的顺利完成。