Eddy Current Array Probe for Off-Road Vehicle Wheel Inspection
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Solution Overview
Problem
Current methods for inspecting off-road vehicle wheels and rims are inefficient, relying on visual assessments and manual data entry, prone to human error, and require central facilities for testing, which is cumbersome and costly, especially for detecting defects and wear on abrasive surfaces.
Innovation Solution
An eddy current array probe system with a resilient surface, capable of detecting surface and sub-surface discontinuities, electronically acquiring and analyzing data to provide quantitative measurements, reducing human error and enabling on-site inspections, with data displayed in three dimensions and archived for predictive modeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If single element and rigid array probes are used for eddy current inspection, then measurement sensitivity is maintained, but inspection of large discs and components with varying geometries becomes difficult and time-consuming
Solution Approach 1:
The probe array is divided into multiple independently controllable probe elements arranged in a grid pattern, allowing selective activation and independent positioning of individual probes to match varying component geometries while maintaining high measurement sensitivity across the entire array
Solution Approach 2:
The probe array incorporates dynamic positioning capabilities where individual probes can be independently actuated to adjust their positions relative to the test surface, enabling adaptation to varying geometries and maintaining optimal inspection coverage without manual repositioning
2Measurement precision
If single element and rigid array probes are used for eddy current inspection, then measurement sensitivity is maintained, but inspection of large discs and components with varying geometries becomes difficult and expensive
Solution Approach 1:
The probe array system is designed with multi-functional capabilities to inspect various component types (discs, wheels, rims) with different geometries using the same probe platform, reducing the need for multiple specialized probes and lowering overall system complexity and cost
3Ease of operation
If conventional probes are used for on-site inspection, then portability is achieved, but they are not suitable for abrasive surfaces and wear quickly
Solution Approach 1:
The probe elements are enclosed in flexible, wear-resistant housings designed to withstand abrasive surfaces, while maintaining the portability needed for on-site inspection of off-road vehicle wheels and rims in remote locations
4Device complexity
If visual assessment and manual data entry are used, then equipment simplicity is maintained, but human error increases and efficiency decreases
Solution Approach 1:
The eddy current array system performs automated data acquisition, processing, and defect identification without requiring manual visual assessment or data entry, eliminating human error while maintaining operational simplicity through integrated electronic processing
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system allows for quick, accurate, and reliable detection of defects and wear, minimizing downtime and labor, while extending probe life and enabling predictive maintenance scheduling.
Implementation Method 1
Eddy current testing may use eddy current coils designed to generate a changing magnetic field that may interact with the disc to generate an eddy current. Variations in the phase and magnitude of the generated eddy current may be measured by measuring changes to the current flowing in the coil.
Implementation Method 2
Eddy current coils designed to generate a changing magnetic field that may interact with the disc to generate an eddy current
Data Source
AI summary
A method of examining a wheel or rim on site is provided using an eddy current array probe in electronic communication with a computer, the computer having a processor and a memory, the memory to provide instructions to the processor. The method involves standardizing the eddy current array probe with a reference standard, adjusting the eddy current array probe with a lift off screw to provide a suitable distance between the probe and a surface of the wheel or rim, scanning the wheel or rim with an alternating current, sending a data set to the computer, the computer analyzing the data set, and the computer displaying a three-dimensional image of the data set on a user interface. This method is particularly developed for off road vehicles at mining sites or any off road vehicle wheels and rims.