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所在平台: Udemy |
课程主页: https://www.udemy.com/course/vibration-analysis/
课程评论：没有评论
课程名称：振动分析 概述：本课程旨在帮助学员了解各种维护策略，包括反应式维护、预防性维护、主动维护和预测性维护。课程强调根据设备的关键性和维护成本，改变对机械和电气设备（如泵、马达等）的维护文化，从而实现最佳效果。通过振动分析捕捉故障的优势将在课程中深入探讨。主要内容包括：时间波形与快速傅里叶变换（FFT）之间的关系，加速度、速度和位移特性与各自可以捕捉的频率的关系，以及如何通过积分和微分来收集所需的单一读数。 课程还讲解了平均值计算（如线性平均、均方根值[RMS]和峰值保持平均），以及窗口处理技术（如汉宁窗和海明窗）。学员将学习记录时间、分辨率、样本数量和采样频率的计算。此外，课程涵盖机械和电气部件的强迫频率，如叶轮、轴、无摩擦轴承等，并解释抗摩擦轴承故障的四个阶段。 课程还将探讨通过振动分析设备可以诊断的故障，如不对中、失衡和弯曲轴等。通过众多实例的辅助，学员将能全面理解振动分析的各个主题，补全知识体系。
Understand the maintenance strategies like reactive, preventive, proactive and predictive maintenance. Trying changes the culture of using maintenance strategies based on the criticality and the cost of maintenance for all mechanical and electrical equipments like pumps, motors and more and more to ensure very good results The binifets of using vibration Analysis to catch the Faults any stages of Faults.Explain the relationship between Time wave form & FFT.Explain the relationship between acceleration, velocity and displacement prope and the frequencies that can be catching by each one.Explain the integration and differentiation to collect all desired by one reading. Explain the most important topics that include and limited to averaging as linear,RMS and peak hold averaging then windowing for example hanning and hamming windowing. Calculations of records time, resolution, number of samples and sampling frequency. Studying the forcing frequencies for mechanical and electrical parts like impeller, shaft, non friction bearing and more.Explain the four stages of anti-friction bearings Faults. Diagnosing Faults that can be catching by vibration Analysis device like Misalignment, unbalance and bent shaft.Many examples that help the students to have a good understanding of all vibration Analysis topics and then complete the picture for all of them.
