铠装热电偶焊接质量的X射线探伤研究

研究了用Ｘ射线探伤方法检查铠装热电偶焊接质量，介绍了焊接仪器、透度计设计和探伤实验方法，讨论了铠装热电偶Ｘ射线探伤实验结果。     

介绍一种新型壁温测量法

本文介绍了一种新型壁温测量法，并结合实际应用效果阐述了该方法的优点（特性）。     

Dynamics analysis of planar armored cable motion in deep-sea ROV system

The armored cable used in a deep-sea remotely operated vehicle（ROV） may undergo large displacement motion when subjected to dynamic actions of ship heave motion and ocean current. A novel geometrically exact finite element model for two-dimensional dynamic analysis of armored cable is presented. This model accounts for the geometric nonlinearities of large displacement of the armored cable, and effects of axial load and bending stiffness. The governing equations are derived by consistent linearization and finite element discretization of the total weak form of the armored cable system, and solved by the Newmark time integration method. To make the solution procedure avoid falling into the local extreme points, a simple adaptive stepping strategy is proposed. The presented model is validated via actual measured data. Results for dynamic configurations, motion and tension of both ends of the armored cable, and resonance-zone are presented for two numerical cases, including the dynamic analysis under the case of only ship heave motion and the case of joint action of ship heave motion and ocean current. The dynamics analysis can provide important reference for the design or product selection of the armored cable in a deep-sea ROV system so as to improve the safety of its marine operation under the sea state of 4 or above.     

扁钢丝铠装光纤复合海缆拉伸试验与仿真分析

随着海洋电力传输的快速发展,扁钢丝铠装型海缆将具有潜在的应用前景。利用研制的扁钢丝铠装光纤复合海缆样品开展拉伸试验及有限元仿真研究,分析了海缆敷设时的受力情况。结果表明:1)海缆伸长率随敷设拉力增加而增大,拉伸端铠装钢丝会产生沿自身方向的旋转和应力释放,仿真后海缆伸长率、拉伸刚度等结果与试验基本一致,结果具有可参考性;2)相比于其他结构,内垫层和外被层应变变形较大,最大应变值比内部线芯大1～2个数量级,可对内部线芯起到良好的缓冲保护作用;3)结合实际试验和仿真结果,光单元钢管最大应变为海缆整体最大应变值的8.5%,处于加载区域,中间段平均应变量级与内部线芯一致。实际拉伸测试光单元附加衰减0.05d B,符合标准要求,结果表明扁钢丝铠装型海缆敷设时最大拖拽力对光单元的性能无影响;4)海缆拉伸过程中,端部会产生较大的变形波动和应力集中效应,实际施工敷设时需加以防护。海缆内部各层应力、应变变化趋势与圆钢丝铠装型一致,表明2种铠装形式海缆抗拉性能基本一致。     

耐腐蚀条件下使用的铠装热电偶外保护钽管焊接方法

研究了用TIG焊接铠装热电偶外保护钽管的可行性，介绍了焊接工艺的全过程及关键参数的配置，讨论了规范参数可能对焊接质量的影响规律。     

运输设备在有轨平巷长距离重型铠装电缆敷设中的应用

为了克服井下重型铠装电缆敷设工作的困难，针对在有轨运输巷中运输条件限制的问题进行了研究。通过采用有轨运输方式，在电机车上固定电缆终端代替人力牵引拖拽，待电缆沿巷道通长摆放完毕后，再进行人工挂设。采用该方式不仅安全高效，且劳动强度低，取得了较理想的效果。     

灯光高尔夫球场照明的设计及供电

阐述灯光高尔夫球场照明的照度要求 ,光源选择、灯具选用、灯杆布置及供配电设计要点。让球场亮起来 ,让球手们在夜间可以和在白天一样充分发挥 ,这是灯光高尔夫球场的设计目的。     

电线电缆及端子

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