Machine Learning P-F Curves for Adaptive Asset Maintenance Timing

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Solution Overview

Problem

The existing P-F Curve maintenance optimization methods often lead to misinterpretation and misuse, resulting in improper timing and tool selection for maintenance inspections, due to the relentless push for non-destructive prognostics tools, which can give misleading guides that these tools can only be applied after a failure has started, and there is a need for a properly based P-F Curve Maintenance Optimization Platform.

Innovation Solution

A reliability engineering software tool that uses machine learning to dynamically plot P-F curves based on real-time monitoring of precise evidence for physical mechanisms of failure, allowing for the scheduling of maintenance events and incorporating multiple inputs to enhance detection and prevention of failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional P-F Curve methods are used for maintenance scheduling, then maintenance planning can be performed, but misinterpretation and misuse occur leading to improper timing and tool selection

Engineering Contradiction:
Improvemaintenance scheduling accuracyVSAvoidinterpretation accuracy
Core Design Contradiction:
ReliabilityVSLoss of information

Solution Approach 1:

The P-F curve is transformed from a static theoretical concept to a dynamic, continuously updating visualization that adapts to real-time sensor data. The curve dynamically adjusts its shape, position, and characteristics based on actual asset condition monitoring, enabling accurate reflection of current asset health status and degradation trends

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Traditional manual interpretation and static P-F curve methods are replaced with an automated machine learning system. The ML algorithms automatically process sensor data, update the P-F curve, and generate maintenance recommendations, eliminating human interpretation errors and providing consistent, data-driven decisions

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If non-destructive prognostics tools are pushed for use, then tool application is promoted, but misleading guides are created that these tools can only be applied after failure has started

Engineering Contradiction:
Improvetool application scopeVSAvoidtiming information
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The system performs preliminary analysis by continuously monitoring asset conditions and updating the P-F curve before actual failure occurs. The machine learning model predicts future degradation trends and identifies potential failure points in advance, enabling proactive maintenance scheduling rather than reactive response after failure begins

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements continuous feedback loops where sensor data from non-destructive prognostics tools is fed into the machine learning model, which updates the P-F curve and generates new predictions. This closed-loop feedback mechanism ensures tools are applied at optimal times based on actual asset conditions rather than following misleading static guidelines

Inventive Principle:
Principle #23Feedback

3Ease of manufacture

If static P-F curves are used for maintenance planning, then initial maintenance schedules can be created, but they cannot adapt to real-time asset performance and operating conditions

Engineering Contradiction:
Improvemaintenance schedule creationVSAvoidmaintenance strategy adaptability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The maintenance schedule transitions from a static plan to a dynamic, continuously adapting strategy. The P-F curve updates in real-time based on sensor data and operating conditions, automatically adjusting maintenance timing and recommendations to reflect current asset health status and predicted degradation trends

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The machine learning-based P-F curve system serves multiple functions simultaneously: it monitors asset conditions, predicts failure trends, updates maintenance schedules, and provides recommendations across different asset types and operating conditions. This universal system replaces multiple separate maintenance planning processes with a single adaptive platform

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20230237353A1Machine Learning Based Predictive P-F Curve Maintenance Optimization Platform and Associated Method
Publication Date: 2023.07.27 RAMWRIGHT CONSULTING CO LLC
  • US20230237353A1 patent drawing
  • US20230237353A1 patent drawing
  • US20230237353A1 patent drawing

AI summary

A reliability engineering software tool and associated method for scheduling maintenance events of at least one industrial asset comprises at least one identified physical mechanism of failure for the at least one asset and at least one identified precise evidence for each identified physical mechanism of failure for the at least one asset; a monitor for each identified precise evidence for each identified physical mechanism of failure for the at least one asset over time to obtain multiple inputs for each identified precise evidence for each identified physical mechanism of failure for the at least one asset; a machine learning based tool dynamically plotting a P-F curve based upon the monitoring of each identified precise evidence for each identified physical mechanism of failure for the at least one asset over time; and a schedule of maintenance events created based upon the dynamically plotted P-F curve of at least one asset.