Wheelset Press-Fitting Curve Analysis for Accurate Quality Judgment
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Solution Overview
Problem
Current wheelset press-fitting equipment can only judge simple aspects of the press-fitting curve and lacks an accurate method for evaluating American standard wheelsets, often relying on manual judgment with potential for errors.
Innovation Solution
A method and system for analyzing the press-fitting curve of American standard wheelsets, which involves establishing a press-fitting curve using acquired parameters and pressure data, and then analyzing multiple judgment items against preset algorithms to determine curve quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual judgment is used to evaluate the press-fitting curve, then flexibility and adaptability are maintained, but judgment accuracy and consistency deteriorate due to human error and subjectivity
Solution Approach 1:
The press-fitting curve is segmented into multiple characteristic sections (initial section, pressure rising section, pressure stable section, terminal section) with specific judgment criteria for each. This segmentation allows the automated system to evaluate different phases of the press-fitting process independently using predefined algorithms, improving judgment accuracy while maintaining manageable system complexity through modular analysis.
Solution Approach 2:
The system transforms the press-fitting curve from a continuous graphical representation into discrete parameterized judgments by evaluating specific points (entry pressure peak, maximum press-fitting force, terminal pressure) and sections against preset thresholds and algorithms. This parameterization enables automated, consistent evaluation while reducing the complexity of manual visual assessment.
2Measurement precision
If simple judgment items are used in press-fitting equipment, then ease of operation is maintained, but judgment completeness and quality assessment accuracy deteriorate
Solution Approach 1:
The system performs preliminary actions by pre-defining judgment criteria, algorithms, and threshold values for each characteristic section of the press-fitting curve before the actual press-fitting process. This preliminary configuration allows the automated system to conduct comprehensive multi-dimensional evaluation during operation without requiring complex real-time decision-making, thus improving evaluation accuracy while maintaining ease of operation.
3Reliability
If comprehensive multi-item analysis is performed on the press-fitting curve, then quality assessment completeness is improved, but analysis time and processing complexity increase
Solution Approach 1:
The system replaces manual mechanical analysis of the press-fitting curve with automated computational algorithms that can simultaneously evaluate multiple judgment items across different curve sections. This substitution of mechanical human analysis with computational systems enables comprehensive multi-dimensional quality assessment without proportionally increasing analysis time, as the automated system processes all parameters concurrently rather than sequentially.
Data Source
AI summary
A method and system for analyzing the press-fitting curve of American standard wheelset includes: acquiring American standard wheelset parameters, press-fitting parameters and pressure data, and establishing a wheelset press-fitting curve; acquiring a plurality of judgment items on the established curve, and analyzing the acquired judgment items according to a preset algorithm to obtain an analysis result, which can analyze all the curves of the end points, wave peaks, wave troughs, ascending and descending sections of the wheelset press-fitting curve. The method is simple to operate and convenient to use, and can automatically and accurately determine whether the curve meets the requirements. At the same time, the identification and determination of unqualified items of the curve provide a basis for the quality improvement of the subsequent press-fitting process, which promotes the quality improvement of wheelset press-fitting, avoids product repair, and further improves the press-fitting efficiency.