Experiments analysis show that the roller bearings vibration signal with normal, inner rings defect and outer rings defect are identified effectively.
试验和理论分析表明，利用该方法可以有效地将正常轴承和内滚道伤轴承、外滚道伤轴承的振动信号进行分离。
Fault diagnosis of main pump of the primary system of reactor which runs at normal condition is studied by the vibration, analysis technique.
应用振动监测技术，通过参数分析、信号分析及谱分析，对反应堆一循环在役主泵的故障进行了分析诊断。
In this paper a finite element model of hermetically sealed electromagnetic relay is built, through normal modes analysis and frequency response analysis, the vibration transitive path is studied.
军用密封电磁继电器是广泛应用于运载火箭、导弹、卫星等武器装备系统与航天系统中的关键元器件，工作环境的复杂性要求其必须具备良好的耐力学性能。
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