With a view to the data fusion of four oil analysis techniques, i.
针对4种最常用的油样分析技术(铁谱、光谱、颗粒计数及理化指标分析)的信息融合问题,依据基于规则的专家系统方法,建立了各油样分析技术的子专家诊断系统;依据专家经验建立各子专家系统的诊断结果与故障论域中各故障模式的关系,得到了用于神经网络学习的训练样本。
Taking the hydraulic system fault analysis of an 800 t/h bucket elevator in a power plant for example,this paper indicates that the equipment status,trouble causes and trouble spots of the hydraulic system can be judged effectively by oil sample analysis,pressure and flow-rate analysis as well as noise diagnosis;thereby the efficiency of repair can be improved and state maintenance realized.
通过某厂800 t/h斗式提升机液压系统故障分析的实例,说明油样分析、压力和流量测试分析、噪声诊断可以有效地判断液压系统的设备状态、故障原因和故障点,从而提高修理工作效率,达到状态检修的目的。
Based on commercial software FLUENT for CFD analysis,a series of steady and unsteady analysis for five typical sections of this bridge are carried to obtain aerodynamic coefficient and the lift coefficient power spectrum curve of deck section in different cases.
进一步讨论了钝化主梁截面静力及动力风荷载随梁高及攻角变化的规律,分析了FLUENT软件定常和非定常分析产生差异的原因,对比了成桥及施工状态主梁截面气动特性的差异,发展了一种基于非定常所得气动力时程判断结构涡振性能的方法。
