Fault Frequency Set Detection for Multi-Vendor Machinery Components

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Solution Overview

Problem

In complex machinery, such as wind turbines, identifying failing bearings from different vendors is challenging due to varying fault frequencies, requiring cumbersome record-keeping and potential for errors, especially when multiple vendors' components are present.

Innovation Solution

A system that collects data from sensors, calculates spectra, and compares vendor-specific fault frequency ranges to identify fault frequencies, determining the likely vendor and location of failing components without needing detailed records for each bearing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If detailed records are maintained for each bearing including fault frequency and location, then fault identification accuracy is improved, but system complexity and potential for error increase

Engineering Contradiction:
Improvefault identification accuracyVSAvoidrecord-keeping complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system enables self-identification of bearing faults by automatically comparing sensor data against stored vendor fault frequency ranges. The machine itself performs the identification function without requiring external record-keeping or manual tracking of bearing specifications.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Instead of maintaining physical records for each bearing, the system creates and maintains a digital copy in the form of stored vendor fault frequency ranges. These ranges serve as reference data that can be automatically compared against sensor readings to identify faults without requiring individual bearing records.

Inventive Principle:
Principle #26Copying

2Reliability

If sensors continuously monitor vibration data, then fault detection capability is improved, but data processing complexity increases

Engineering Contradiction:
Improvefault detection capabilityVSAvoiddata processing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system performs preliminary action by pre-storing vendor fault frequency ranges before monitoring begins. This preparation allows the system to quickly compare sensor data against known ranges without requiring complex real-time analysis algorithms, thereby simplifying the data processing while maintaining reliable fault detection.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If multiple vendor bearings are used in a machine, then component availability and selection flexibility are improved, but fault frequency identification difficulty increases

Engineering Contradiction:
Improvecomponent selection flexibilityVSAvoidfault frequency identification difficulty
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The system segments the fault frequency identification problem by creating separate vendor-specific fault frequency ranges for each bearing vendor. This segmentation allows the system to handle multiple vendors independently, comparing sensor data against the appropriate vendor's ranges to identify faults even when multiple different bearing types are present in the same machine.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9791856B2Fault frequency set detection system and method
Publication Date: 2017.10.17 BAKER HUGHES CO
  • US9791856B2 patent drawing
  • US9791856B2 patent drawing
  • US9791856B2 patent drawing

AI summary

Systems and methods are provided for monitoring operating machinery to identify fault frequency sets for consumable components used in the machinery. Data associated with characteristic behavior of the machinery being monitored is acquired and analyzed, comparing known vendor information regarding fault frequencies for specified components to vibration frequencies observed in the machine in service. The systems and methods described herein enable an operator to identify and confirm critical information such as the location of and/or vendor identity for components exhibiting fault vibration behavior.