排序方式: 共有34条查询结果,搜索用时 859 毫秒
21.
22.
对液压牵引采煤机工况监测系统进行了讨论。根据实际经验给出了采煤机的主要应监测参数。针对这些参数提出了两种不同的监测方案。并对两种不同方案系统的结构合理性、系统复杂程度和系统费用进行了对比分析。 相似文献
23.
本文针对动态电流测试,提出了动态电流通路和动态电流通路故障的概念以及基本逻辑门的动态电流通路故障模型,在波形模拟器的基础上给出了一个用于动态电流测试的故障模拟算法。 相似文献
24.
25.
26.
采煤机运行状态及其故障的灰色预测 总被引:1,自引:1,他引:1
通过对采煤机运行状态的灰色预测,提高了采煤机的使用可靠性。 相似文献
27.
本对综采面机械系统可靠性及模糊工作状态进行了分析,为设备维修管理与决策提供科学依据。 相似文献
28.
It is the time to explore the fundamentals of IDDT testing when extensive work has been done for IDDT testing since it was proposed.This paper precisely defines the concept of average transient current(IDDT) of CMOS digital ICs,and experimentally analyzes the feasibility of IDDT test generation at gate level.Based on the SPICE simulation results,the paper suggests a formula to calculate IDDT by means of counting only logical up-transitions,which enables IDDT test generation at logic level.The Bayesian optimization algorithm is utilized for IDDT test generation.Experimental results show that about 25% stuck-open faults are with IDDT testability larger than 2.5,and likely to be IDDT testable.It is also found that most IDDT testable faults are located near the primary inputs of a circuit under test.IDDT test generation does not require fault sensitization procedure compared with stuck-at fault test generation.Furthermore,some redundant stuck-at faults can be detected by using IDDT testing. 相似文献
29.
以TURBOPROLOG人工智能语言为软件支撑开发了采煤机故障诊断专家系统MFDES(Mining--machineFaultDiagnosticExpertSystem),主要方论该专家系统的护理机设计与软件实现方法。 相似文献
30.