技术文章

瓦伦尼安教学设备PT800机械教学仿真系统由平台硬件和状态监测与测量教学系统软件组成，可广泛应用于各大学的研究、预测性维护、转子动力学、旋转机械故障诊断、设备状态监测等科研、教学和实践培训操作。模块化结构允许一台机器适应特定要求。全面的配件使得有必要反复模拟各种类型的破坏性故障。PT800机械仿真系统实验平台配备了计算机状态监测和故障诊断软件，用于测量和评估机械试验台。

VALENIAN The PT800 Mechanical Teaching Simulator System consists of platform hardware and condition monitoring and measurement teaching system software, which can be widely used in various universities for research, predictive maintenance, rotor dynamics, rotating machinery fault diagnosis, equipment condition monitoring, and other scientific research, teaching, and practical training operations. The modular structure allows one machine to adapt to specific requirements. Comprehensive accessories make it necessary to repeatedly simulate various types of destructive faults. The PT800 mechanical simulation system experimental platform is equipped with computer state monitoring and fault diagnosis software for measuring and evaluating mechanical test benches.

2.Configuration

轴承寿命预测机理研究模拟实验台

主要由以下模块组成：通用实验装置移动基础平台、旋转轴裂纹故障仿真试验模块、传动带系统仿真试验模块，抽水蓄能仿真试验模块；运行变量控制监测模块、临界转速仿真试验模块。

The PT800 mechanical teaching simulation system test bench is mainly composed of the following modules: universal experimental device mobile foundation platform, rotating shaft crack fault simulation test module, transmission belt system simulation test module, pumped storage simulation test module, operating variable control monitoring module, critical speed simulation test module, coupling fault simulation test module, reciprocating single stroke rotor simulation test module, wind speed fluid dynamics simulation test module, driver defect simulation test module, system rotation torque loading simulation module, faulty bearings, spur gear box, frequency converter, vibration data collector, and upper computer data analysis software.

3.Uses of simulator

•Learn the shaft vibration model of the “critical velocity” and “resonance” of flexible rotors.

•Learn the changes in characteristic vibration characteristics (natural frequency, resonance velocity, vibration amplitude, and phase) caused by cracks, identify cracks from the vibration spectrum changes, and detect cracks in the protruding shaft end of the rotating shaft.

•Coupling kits are used to simulate various coupling failures and study their effects on the vibration characteristics of couplings

•Learn the influence of belt tension on the vibration behavior of belt driven equipment, the influence of speed on vibration behavior, and the impact of incorrect and eccentric operation of belt pulleys.

•Learn vibration characteristic recognition of reciprocating rotor systems, as well as the effects of bearing clearance and impact.

•Study the cavitation phenomenon of pumped storage pump stations and its impact on vibration spectra.

•Conduct wind speed and fluid dynamics tests to understand the extraction of fan frequency and different impeller vibration frequencies.

•Understand the identification of vibration spectrum characteristics of phase deficient drive motors.

•Understand the vibration impact of the load system on gear and bearing test items.

•学习柔性转子“临界速度”和“共振”的轴振动模型。

•了解裂纹引起的特征振动特性（固有频率、共振速度、振幅和相位）的变化，从振动频谱变化中识别裂纹，并检测旋转轴突出轴端的裂纹。

•联轴器套件用于模拟各种联轴器故障，并研究其对联轴器振动特性的影响

•了解皮带张力对皮带传动设备振动行为的影响，速度对振动行为的作用，以及皮带轮不正确和偏心操作的影响。

•学习往复式转子系统的振动特性识别，以及轴承间隙和冲击的影响。

•研究抽水蓄能泵站的空化现象及其对振动谱的影响。

•进行风速和流体动力学测试，以了解风扇频率和不同叶轮振动频率的提取。

•了解缺相驱动电机振动频谱特征的识别。

•了解负载系统对齿轮和轴承测试项目的振动影响。