Synchronized Vibration Monitoring for Phase-Related Fault Detection
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Solution Overview
Problem
Conventional vibration monitoring systems for vibrating apparatus, such as vibratory screening apparatus, fail to analyze phase-related aspects of vibrations and do not readily identify undesirable operating modes or conditions.
Innovation Solution
A vibration monitoring system with multiple sensor units, each located at different positions, synchronizes vibration measurements to calculate differences with nominal data, providing visualizations of non-nominal vibrations, and generates alarms for undesirable conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional vibration monitoring systems use individual location tests in isolation, then the system complexity is reduced, but the ability to analyze phase-related aspects of vibrations is lost
Solution Approach 1:
The patent combines multiple vibration sensors at different locations into a unified monitoring system that synchronizes their data. This merging enables phase-related analysis by comparing vibrations across multiple points simultaneously, resolving the contradiction between system complexity and information completeness.
Solution Approach 2:
The system is designed to perform multiple functions: monitoring vibration at individual locations, analyzing phase relationships between locations, identifying operating modes, and detecting undesirable conditions. This multi-functionality justifies the increased complexity by providing comprehensive vibration analysis capabilities.
2Ease of operation
If conventional monitoring systems focus on individual location tests, then the ease of operation is improved, but the ability to identify undesirable operating modes is reduced
Solution Approach 1:
The system continuously monitors vibration data from multiple locations and provides feedback about phase relationships and operating modes. This feedback mechanism enables reliable identification of undesirable operating modes while maintaining ease of operation through automated analysis.
Solution Approach 2:
The system introduces an intermediary analysis layer that processes raw vibration data from multiple sensors to identify operating modes and conditions. This intermediary layer bridges the gap between simple individual measurements and comprehensive system understanding.
3Ease of manufacture
If vibration measurements are taken at different times in different locations, then the ease of manufacture is improved, but the measurement precision for phase-related analysis is reduced
Solution Approach 1:
The system performs preliminary synchronization of time bases for all sensors before taking measurements. This preliminary action ensures that measurements taken at different locations can be accurately compared for phase relationships, maintaining measurement precision while allowing distributed sensor placement.
Solution Approach 2:
The system changes the timing parameter by synchronizing all sensors to a common time base, enabling precise phase-related analysis. This parameter change allows measurements to be taken at different physical locations while maintaining temporal precision for phase analysis.
Data Source
AI summary
A vibration monitoring system comprises sensor units that include a vibration sensor and which are locatable on an apparatus to be monitored at a respective different location. Each sensor unit is operable to take vibration measurements using its vibration sensor. The system obtains synchronized vibration measurement data for each sensor unit, and calculates a difference between the respective vibration measurement data for each sensor unit and nominal vibration data to obtain respective non-nominal vibration data for each sensor unit. The system renders to a user a visualisation, such as an animation, of the non-nominal vibration data for each sensor unit, which facilitates identification of undesirable operating modes or other undesirable conditions of the apparatus.