往复泵运动机构磨损对振动特性的影响分析

发布时间：2018-04-11 06:07

本文选题：往复泵 + 运动机构　；参考：《舰船科学技术》2017年01期

【摘要】：往复泵运动机构磨损是影响其性能的主要因素,研究掌握运动机构磨损引起的振动特性,对设备故障诊断和状态监测具有重要意义。由于往复泵组成部件较多,结构复杂,仅依靠对振动数据进行分析的信号处理方法难以准确分析和判断设备性能。通过开展基于运动副磨损对振动特性影响的机理分析,建立曲柄连杆处运动副的接触-分离2种状态力学和数学模型,并利用数值计算方法,分析运动副不同磨损间隙状态下,运动机构运动学、动力学和振动特性,掌握磨损间隙对设备的振动性能的影响,发现磨损间隙的存在对舱底泵的运动特性和振动特性有较大影响。
[Abstract]:The wear of reciprocating pump mechanism is the main factor that affects its performance. It is of great significance to study and master the vibration characteristics caused by the wear of reciprocating pump mechanism for equipment fault diagnosis and condition monitoring.Because the reciprocating pump has many components and complex structure, it is difficult to accurately analyze and judge the performance of the equipment by the signal processing method which only depends on the analysis of vibration data.Based on the mechanism analysis of the effect of motion pair wear on vibration characteristics, two kinds of mechanical and mathematical models of contact separation are established, and the numerical calculation method is used to analyze the different wear gap states of the motion pair.The kinematics, dynamics and vibration characteristics of the motion mechanism, the influence of wear clearance on the vibration performance of the equipment is grasped, and it is found that the existence of the wear gap has a great influence on the motion and vibration characteristics of the bilge pump.
【作者单位】：海军工程大学动力工程学院;
【基金】：国家自然科学基金青年基金资助项目(51509253)
【分类号】：TH38

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