CAD Design Support Device for Frequency-Based Violation Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In CAD design, determination rules with non-uniquely defined threshold values pose challenges, especially when load conditions vary by position, making it difficult to check manufacturability and maintainability guidelines.
Innovation Solution
A design support device that inputs CAD models, identifies shape and position features, calculates frequency distributions, and outputs violated portions, allowing for automatic or manual identification of design errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If determination rules with non-uniquely defined threshold values are used to accommodate varying load conditions, then design flexibility and adaptability are improved, but the ability to automatically check manufacturability guidelines deteriorates
Solution Approach 1:
The invention changes the parameter from a fixed threshold value to a frequency distribution-based evaluation. Instead of checking whether a feature value meets a fixed threshold, the system calculates the frequency distribution of feature values across multiple positions and evaluates violations based on statistical characteristics (mean, standard deviation) of the distribution. This allows determination rules to adapt to varying load conditions while maintaining checkable criteria through statistical parameters rather than fixed thresholds.
2Adaptability or versatility
If manual checking methods are used for determination rules with non-uniquely defined thresholds, then design flexibility is maintained, but checking efficiency and productivity deteriorate
Solution Approach 1:
The invention enables the CAD model to self-check against determination rules by automatically calculating frequency distributions of feature values and identifying violated portions without manual intervention. The system processes the CAD model data, computes statistical characteristics, and generates check results automatically, significantly improving checking efficiency while maintaining the ability to handle non-uniquely defined thresholds through statistical evaluation methods.
3Manufacturing precision
If fixed threshold values are used for determination rules, then checking precision is improved, but the ability to handle varying load conditions deteriorates
Solution Approach 1:
The invention introduces dynamic evaluation by calculating frequency distributions that reflect the actual variation in feature values across different positions and load conditions. Instead of using static fixed thresholds, the system dynamically computes statistical parameters (mean, standard deviation) from the CAD model data itself, allowing the check criteria to adapt to the specific design context while maintaining precise identification of violations through statistical significance testing.
Data Source
AI summary
The invention provides a design support device that supports design of a CAD model, the design support device includes: an input unit configured to input the CAD model and a feature value including a shape and a position of the CAD model; a feature value identification unit configured to identify the shape and the position on the CAD model using the feature value received from the input unit; a frequency calculation unit configured to calculate a frequency of the identified shape and the identified position; and an output unit configured to output the frequency distribution calculated by the frequency calculation unit.