Where should one start when engaging in mechanical vibration analysis?
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Due to work requirements, I need to start working with mechanical vibration analysis, but after searching various sources, I couldn’t find a systematic introduction to it. There is often more practical experience than theoretical explanation. I was wondering how those who work in this field started out? Thank you.
Alstom Chuangweishi Technology Development (Shenzhen) Co., Ltd. “Condition Monitoring and Fault Diagnosis of Large Rotating Machinery”
First, acquire expertise in vibration and gain experience —— become familiar with, establish, and improve vibration-related systems —— gain a thorough understanding of the current vibration situation and existing problems within the company —— refine and address these issues —— maintain frequent communication with external parties to establish channels for communication —— interact more with specialized companies to learn from them and adopt their advanced technical management methods
Alstom Chuangwei has considerable experience and expertise in \"online condition monitoring and fault analysis of large rotating machinery\" as well as \"online condition monitoring of pump systems.\" I still have their contact cards and phone numbers, but I don’t know where to put them...
A basic understanding of the structure and working principles of rotating machinery is necessary； Communicate with equipment management and maintenance technicians to understand the causes and types of common failures, and gain sufficient experience ； External training and exchanges provide a deeper understanding of condition monitoring, which in turn guides daily equipment management. After analyzing the results, it is possible to go to the maintenance site to understand the cause and compare it with the monitoring results.
I don’t see any sign of ‘extensive practical experience’, haha. For theoretical knowledge, you can find an introductory book to read; \"Practical Techniques for Vibration Diagnosis in the Field\" is a good choice. Attend training courses offered by vibration monitoring equipment companies; for example, Alstom Chuangweishi holds training courses almost on a monthly basis. You can get in touch with me. QQ: 42379647, Email: mirook@126.com
I think we should first understand the working principle of the unit equipment, its operating conditions, and the basic process flow. There are many factors that influence vibration. From the perspective of vibration analysis alone, the main tasks involve data collection – the raw data obtained by vibration probes – followed by analysis using various formulas, such as calculating the axis trajectory and amplitude analysis. Mathematical transformations are also used to determine vibrations in the X and Y directions. In short, it is a process of data collection and data analysis. Everyone upstairs mentioned Alstom; many chemical plants and fertilizer factories have adopted this system, and it indeed works well, providing very clear feedback.
It seems the original poster has access to information regarding equipment and the work site, and there is also a lot of information provided on ‘practical experience’. The study of vibration theory focuses on fault types and the mechanisms that cause vibrations, the vibration characteristics of various faults, and how to identify faults from different graphs. It’s sufficient to understand the specific data collection and calculation processes; the vibration monitoring equipment carries out these tasks and directly generates various graphs.
Learn some basic knowledge of vibration analysis, such as modal analysis methods; there’s no need to delve into overly complex theoretical issues. By understanding how to use a vibration testing system and how to interpret vibration spectra, one can address various practical problems. Learn as you go.
The original poster can go to the Vibration Alliance website to take a look, http://www.chinavib.com/