Steel Plate Production Specs Using Back Analysis for Disturbance Robustness
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Solution Overview
Problem
Existing methods for producing steel plates with desired crystal grain and hardness are unreliable due to disturbances in chemical composition, dimensions, or temperature variations during production, requiring repeated experiments to achieve optimal specifications, and do not account for resistance against production disturbances.
Innovation Solution
A production specification determination method and apparatus that acquires performance data and uses a prediction model to optimize production specifications, ensuring that material characteristics asymptotically approach desired values through back analysis and feedback control in the production process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If experimental methods and trial production are used to determine production specifications, then desired material characteristics can be achieved, but production time and complexity increase significantly
Solution Approach 1:
The patent performs back analysis and determines optimized production specifications before actual production begins. By calculating the required production parameters in advance based on desired material characteristics and prediction models, the method eliminates the need for time-consuming trial productions and repeated experiments, directly achieving the target material properties on the first attempt
Solution Approach 2:
The patent employs a feedback mechanism where prediction models estimate material characteristics based on production specifications, and back analysis adjusts specifications to ensure estimated values asymptotically approach desired values. This closed-loop approach ensures accurate material characteristics without requiring extensive trial and error iterations
2Reliability
If traditional production methods are used without considering disturbances, then production process is simpler, but reliability of achieving desired material characteristics decreases
Solution Approach 1:
The patent performs back analysis that proactively compensates for potential disturbances in chemical composition, dimensions, and temperature before production occurs. By calculating optimized production specifications that account for expected variations and uncertainties, the method ensures reliable achievement of desired material characteristics even when disturbances occur during actual production
Solution Approach 2:
The patent adjusts production specification parameters based on back analysis results to compensate for anticipated disturbances. By modifying parameters such as rolling reduction, cooling rates, and heating temperatures in the optimized specifications, the method maintains reliability of material characteristics despite variations in production conditions
Data Source
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AI summary
A production specification determination method, a production method, and a production specification determination apparatus that can increase robustness against disturbances during production of a metal material are provided. Included are the steps of acquiring at least one piece of performance data established after a predetermined process during production of a metal material, performing back analysis based on the at least one piece of performance data and a prediction model that relates production specifications and material characteristics, and searching for production specifications for after the predetermined process such that an estimated value for the material characteristics asymptotically approaches a desired value.