Rotor Vibration Peak Analysis During Speed Changes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rotating machinery diagnosis and monitoring technologies fail to accurately determine the trend and progression of vibrations, particularly during changes in rotor speed, as they rely on predetermined threshold values rather than analyzing peak vibration values and corresponding rotation speeds.
Innovation Solution
A rotating machinery diagnosis and monitoring device and method that identifies peak vibration values and evaluates their magnitude and corresponding rotation speeds, enabling the determination of symptom trends and abnormality progression by using a calculator to process and display the results externally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If predetermined threshold values are used for vibration diagnosis, then the diagnosis system is simple to operate, but the reliability of determining symptom trends and abnormality progression is insufficient
Solution Approach 1:
The patent changes the diagnostic parameters from fixed threshold values to dynamic peak vibration values correlated with rotation speeds. By identifying peak values and their corresponding rotation speeds, the system transforms static threshold comparison into dynamic parameter analysis, improving reliability in determining symptom trends and abnormality progression during speed changes.
Solution Approach 2:
The patent replaces the simple threshold comparison mechanism with a more sophisticated data processing and analysis system. The calculator identifies peak vibration values, correlates them with rotation speeds, and determines symptom trends, substituting the mechanical threshold-checking approach with computational analysis that provides more reliable diagnostic information.
2Measurement precision
If peak vibration values and corresponding rotation speeds are analyzed, then the determination of symptom trends and abnormality progression becomes reliable, but the device complexity increases
Solution Approach 1:
The patent segments the vibration analysis into distinct peak value identifications correlated with specific rotation speeds. By dividing the continuous vibration data into discrete peak events and their corresponding speed points, the system achieves precise measurement of vibration characteristics while organizing the computational complexity into manageable segments through the calculator's structured analysis process.
3Loss of information
If threshold-based diagnosis is used, then the operation is simple, but the ability to grasp symptom trends during speed changes is insufficient
Solution Approach 1:
The patent implements feedback by continuously monitoring peak vibration values and their corresponding rotation speeds, then using this information to determine symptom trends and abnormality progression. The system feeds back the correlated speed-vibration data to identify patterns and trends that would be lost in simple threshold-based diagnosis, preserving critical information while the calculator automatically processes the analysis.
Data Source
AI summary
The present invention provides a rotating machinery diagnosis and monitoring device and method which have high reliability and enable the grasping of a symptom trend of vibrations and a determination of progress of the vibrations during increase and decrease in the rotation speed of a rotor. A rotating machinery diagnosis and monitoring device of the present invention, comprising: an input section that receives vibration values and rotation speeds as operation data of a rotating machine; a computing section that performs computations using the operation data received; and a calculator that includes an output section. The computing section is configured to identify peak values of the vibration values and evaluate each of magnitude of the peak values and the rotation speeds at the peak values. The output section is configured to display externally a result of evaluations performed by the computing section.