In order to realize the efficiency, reliability and safety tests on the complex cable network of an electronic system, an efficient cable network resistance tester is designed. Firstly, the design background and hardw...In order to realize the efficiency, reliability and safety tests on the complex cable network of an electronic system, an efficient cable network resistance tester is designed. Firstly, the design background and hardware structure are briefly described. Then aiming at the multi task parallelism considering real time measurement of parameters and real time control of the system in the tester testing, a real time muhi task control software is developed by using multi thread testing technology in parallel test to realize multi task complex control. Finally, the least squares method is used to improve the test accuracyof the tester. The test results show that the test error is basically within 0.3%, and the test speed can reach 345 point/min.展开更多
介绍一种基于布里渊光时域分析技术BOTDA(Brillouin Optical Time Domain Analysis)的复合海缆在线监测系统的上位机软件开发过程。对系统的基本原理进行简单介绍,对系统软件的结构、功能以及关键技术进行详细的阐述。其中,利用模块化...介绍一种基于布里渊光时域分析技术BOTDA(Brillouin Optical Time Domain Analysis)的复合海缆在线监测系统的上位机软件开发过程。对系统的基本原理进行简单介绍,对系统软件的结构、功能以及关键技术进行详细的阐述。其中,利用模块化设计思想确保了整个系统软件的维护性和扩展性;运用多线程技术提高了系统运行效率,实时性也具有可靠的保证。在渤海采油平台上的成功应用表明该系统软件可以实现对海缆分布式、实时的监测。展开更多
文摘In order to realize the efficiency, reliability and safety tests on the complex cable network of an electronic system, an efficient cable network resistance tester is designed. Firstly, the design background and hardware structure are briefly described. Then aiming at the multi task parallelism considering real time measurement of parameters and real time control of the system in the tester testing, a real time muhi task control software is developed by using multi thread testing technology in parallel test to realize multi task complex control. Finally, the least squares method is used to improve the test accuracyof the tester. The test results show that the test error is basically within 0.3%, and the test speed can reach 345 point/min.
文摘介绍一种基于布里渊光时域分析技术BOTDA(Brillouin Optical Time Domain Analysis)的复合海缆在线监测系统的上位机软件开发过程。对系统的基本原理进行简单介绍,对系统软件的结构、功能以及关键技术进行详细的阐述。其中,利用模块化设计思想确保了整个系统软件的维护性和扩展性;运用多线程技术提高了系统运行效率,实时性也具有可靠的保证。在渤海采油平台上的成功应用表明该系统软件可以实现对海缆分布式、实时的监测。
文摘针对传统矿用锚杆锚索无法实现让压吸能的不足,为设计出满足防冲吸能要求的组合式锚杆索,对防冲吸能锚杆索的吸能构件中不同螺纹尺寸进行数值模拟研究,以确定满足设计要求的最优螺纹尺寸组合.利用ANSYS软件进行前处理、LS-DYNA进行求解计算,正交试验法进行结果分析,研究不同尺寸内螺纹吸能效果,考察各个因素对工作阻力的影响.结果表明:对构件工作阻力影响最大的参数是螺纹厚度,其次是螺距,最后是螺纹剪切高度.螺纹厚度越大,构件的工作阻力越大;螺距越大,构件的工作阻力越小;剪切高度为3 mm时,构件工作阻力最大;利用正交试验分析,得到满足设计要求的吸能构件螺纹最优尺寸为螺距10 mm,螺纹厚度4 mm,剪切高度3 mm.
