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任电力行业,很早就将红外热像仪运用于设备的安全巡检上,通过其对电气设备和线路的热缺陷进行检测,福禄克红外热像仪具有不需停电、远距离.安全可靠以及准备高效等优点,是实现带电检测和设备状态检修的有效手段之一。 相似文献
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为保证电力系统安全、经济、稳定运行,在状态检修过程中,运用红外技术诊断电力设备故障越来越发挥其特殊的重要作用,分析论述高压电力设备各种故障红外热像特征及影响电气设备故障红外检测诊断的相关因素,并对以后在应用过程中注意的问题进行了简要的探讨。 相似文献
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本文简要地介绍了红外热像检测技术的原理及特点,并利用实例说明了红外热像技术在热力管道保温测试与评估中的应用。 相似文献
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中国民用航空维修系统已经越来越多的应用红外热像技术检测飞机复合材料构件在服役过程中产生的缺陷。从发展趋势来看,红外热像检测技术将会成为航空器无损检测的常规检测手段;从维修工作的实际效果来看,采用红外热像技术检测复合材料蜂窝内部积水的方法效率高、结果准确。 相似文献
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文章首先对红外热成像技术及预知性维修进行简单介绍,继而阐述热成像仪在电气设备预知性维修中的作用,并选择Ti20型便携式热成像仪为例,在对其进行简单介绍的基础上,通过案例分析的方式,就其实际应用进行阐述,最后还就便携式热成像仪在电气设备预知性维修中应用的常见问题和解决措施进行陈列,以供参考。 相似文献
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光动力学系统神经网络系统辨识及自适应控制之性能分析 总被引:2,自引:2,他引:0
分析了光动力学系统神经网络常规BP辨识与混沌加速BP辨识的异同,并对与二者相应的两种光动力学系统神经网络自适应控制技术的性能进行了比较。在此基础上,本文对光动力学系统神经网络自适应控制系统的设计原则进行了讨论。 相似文献
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Chain drive system is widely used in the conditions of high-speed, overload, variable speed and load. Many studies are focused on the meshing theory and wear characteristics of chain drive system, but system design, analysis, and noise characteristics of the chain drive system are weak. System design and noise characteristic are studied for a new type Gemini chain of dual-clutch automatic transmission. Based on the meshing theory of silent chain, the design parameters of the Gemini chain system are calculated and the mathematical models and dynamic analysis models of the Gemini chain system are established. Dynamic characteristics of the Gemini chain system is simulated and the contact force of plate and pin, plate and sprockets, the chain tension forces, the transmission error and the stress of plates and pins are analyzed. According to the simulation results of the Gemini chain system, the noise experiment about system is carried out. The noise values are tested at different speed and load and spectral characteristics are analyzed. The results of simulation and experimental show that the contact forces of plate and pin, plate and sprockets are smaller than the allowable stress values, the chain tension force is less than ultimate tension and transmission error is limited in 1.2%. The noise values can meet the requirements of industrial design, and it is proved that the design and analysis method of the Gemini chain system is scientific and feasible. The design and test system is built from analysis to test of Gemini chain system. This research presented will provide a corresponding theoretical guidance for the design and dynamic characteristics and noise characteristics of chain drive system. 相似文献
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简要介绍了决策支持系统(DSS)的产生和发展,论述了决策支持系统的系统结构和3个技术层次,辨析了DSS与管理信息系统(MIS)的区别和联系,重点研究了基于DSS的模型库和方法库的设计与实现。阐述了模型库系统的3个组成部分和方法库系统的体系结构,并对模型库与方法库之间的关系调用问题进行了详细分析。提出了模型库系统调用方法库中方法的实现方案。本文介绍的内容,对DSS应用具有一定的参考价值。 相似文献
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This paper proposes a new type of bearing system. In this study, a method for design of on elastomeric bearing system and
its mechanical property analysis are carried. Experimental and theoretical studies of the elastomeric bearings with fiber
reinforcement were proved effective new lightweight bearing system. The fibers in the bearings for isolation are assumed to
be flexible in extension, in contrast to the steel plates in the conventional bearing system. Several kinds of bearing systems
in the form of long strips are designed, fabricated and tested. The results suggest that it is possible to produce the economical
and effective fiber-reinforced elastomeric bearing that matches the behavior of a steel-reinforced bearing. Feasibility and
advantages of the proposed bearings are illustrated by the application of the analytic procedure to the structure system.
Results obtained here are reported to be an efficient approach with respect to bearing system and design of bearing against
shock absorbing system when compared with other conventional one. 相似文献
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S7-300PLC在落地镗床控制系统中的应用 总被引:1,自引:0,他引:1
介绍了W160HC落地镗床的控制要求,提出镗床控制系统的控制策略,进而确定了以S7-300PLC作为核心的镗床控制系统.阐述了其控制的工艺流程,详细介绍了该控制系统的工作原理和组成,结合实例说明其硬件组成和软件设计,并结合本方案实际提出了抗干扰设计.实践证明,该控制系统操作方便,可现场修改数据参数,运行可靠稳定,抗干扰能力强,且经济实用. 相似文献
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The dynamics of an ultrasonic rod system with a piezoelectric vibration exciter are examined. Based on the analysis of the equations of vibrations of the electromechanical system, methods of resonance adjustment are described. The main features of constructions and system operation in resonance conditions are identified. Methods for the selection of optimal system parameters causing maximal amplitude of variations of the working system element are found. 相似文献
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本文介绍了负荷传感与LUDV液压系统,分析了在单泵多执行机构时负荷传感与LUDV液压系统的工作特点,并在此基础上建立了负荷传感变量泵、负荷传感液压系统与LUDV液压系统的AMESim模型,进行了仿真分析。 相似文献