食品加工企业做好设备选型的探讨

介绍了从警备的工艺性、适应性、经济性、效能、可靠性、维修性等多方面择优设备的经验。     

大型地震模拟振动台运行对周围场地影响的试验研究

为降低大型地震模拟振动台试验时所引起的振动对振动台实验室以及周边建筑结构内的机床以及精密仪器的影响,提高结构内人员的舒适度,建立了一种频率相关的半主动控制三维隔振楼板系统。提出了一种基于楼板输入加速度主频的on-off半主动控制方法以及相应的频率在线检测方法,开展了振动台试验,进行了正弦波与地震动引起振动的加载。试验结果表明：所提出的频率在线检测方法可以快速有效地检测输入振动波的主频,根据此频率进行的半主动控制可以有效降低楼板的振动响应。为了提高控制效果,实际应用中应尽量降低磁流变阻尼器在低阻尼力模式时的阻尼。     

126 kV GIS设备典型故障分析与处理

笔者对一起126kVGIS设备典型故障的发生经过、起初分析处理不当的缘由以及造成的后果进行了详细说明,对故障真正原因作了认真分析,并指出故障查处过程反映出的诸多问题,最后归纳出针对GIS设备订货、监造、日常运行管理、故障分析判断和现场处理等方面需要注意的重点,以确保安全运行。     

开展设备状态检修推动生产管理升级

围绕供电公司状态检修工作的开展,对状态检修工作进行了系统的思考,提出了深化落实的具体思路和方法。     

Progress in Thermal Contact Resistance

The developments of aeronautics and astronautics require engines of higher quality. The temperature distribution in combustion engine is highly influenced by the thermal conduct resistance. To predict the temperature field of the hot-end assemblies of combustion engine, the thermal contact resistance must be considered. The object of the study is to propose a model of high application including in conditions of high temperature and high pressure. Up to date, many models and empirical or semi-empirical corre...     

Relationships between observed and perceived deviations from normative work procedures

Deviations from anticipated courses of events are often associated with accidents, while the effects of deviations that decrease productivity but do not obviously lead to human injury are less clear. A systemic approach to production and safety is introduced, and it is proposed that production deviations have effects that may lead to safety violations and personal injury. In addition, the relationship between observed and perceived production deviations from 12 senior (60–79 years old) males' routine work using three firewood processing machines is analysed. For simple machine work, perceived deviations were positively related to observed deviations per work cycle and inversely correlated to the perception of work efficiency. For more complex machine work it was more difficult to match observers' and operators' perceptions of deviations. Despite challenges in the production deviation concept, this approach offers a holistic understanding of the performance of human–machine-environment systems and complements assessments of deviations from safe working practice.     

基层设备管理中的专业考核问题

在基层设备管理中,建立以案例考核为主体的考核体系,采用多种激励手段,实现设备管理的有效性和经济性。     

自主研发实验设备,创建高水平的示范实验室

本文介绍了化工基础实验中心针对实验设备存在的一些问题,发挥实验指导老师的积极性,自主研发了系列实验教学设备的做法,并对自主研发实验设备的主导思想和所取得的成效进行了探讨。     

煤矿竖井井筒装备制定施工方案须注意的问题

通过对煤矿竖井井简装备安装的简要分析,根据井简装备安装工程的特殊性,提出了井筒装备安装工程制定、论证施工方案过程中应注意的问题,对类似井简装备的大型工程施工具有指导意义。     

无功补偿装置的设计

无功补偿技术对用电企业提高电网运行质量十分重要.本文对无功补偿方法与关键技术进行了分析,并通过实际案例介绍了无功补偿装置的设计方法与注意事项,无疑将对无功补偿技术的应用起到推动作用.