Resin Behavior Analyzer Fiber Bending Quantification

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Solution Overview

Problem

Existing computer-aided resin behavior analyzers struggle to quantify and classify fiber bending in resins with continuous or long discontinuous fibers during molding, leading to difficulties in assessing its impact on product strength and optimizing molding conditions.

Innovation Solution

A computer-aided resin behavior analyzer that calculates and evaluates the bending rate of fibers using a simulation program, allowing for quantitative assessment of fiber bending by inputting multiple nodes and determining bending rates based on evaluated lengths, enabling classification of bending modes and optimization of molding conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If fiber size is very small, then fiber bending cannot be discerned without enlarged display, but even with enlarged display fiber bending can only be evaluated by intuition

Engineering Contradiction:
Improvefiber bending evaluation precisionVSAvoidfiber bending detection difficulty
Core Design Contradiction:
Measurement precisionVSDifficulty of detecting and measuring

Solution Approach 1:

The patent replaces manual visual inspection and intuitive evaluation with an automated image processing system that uses coordinate extraction and mathematical calculations to objectively measure fiber bending. The system extracts coordinates of multiple points along the fiber, calculates bending rates using geometric relationships, and provides quantitative evaluation without relying on human intuition.

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

2Loss of information

If no quantitative evaluation method is available, then causal relationship between molding conditions and fiber bending cannot be ascertained, but quantitative evaluation enables appropriate judgment of fiber bending

Engineering Contradiction:
Improveinformation on causal relationshipVSAvoidfiber bending measurement precision
Core Design Contradiction:
Loss of informationVSMeasurement precision

Solution Approach 1:

The patent establishes a feedback mechanism where fiber bending is quantitatively measured and correlated with molding conditions. By calculating bending rates and comparing them across different molding scenarios, the system enables identification of causal relationships between molding parameters and fiber bending, allowing for optimized condition selection.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent introduces quantitative parameters (coordinates of multiple points, bending rates calculated from these coordinates) to characterize fiber bending. By changing from qualitative visual assessment to quantitative parameter-based evaluation, the system enables precise measurement and analysis of fiber bending behavior under varying conditions.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If fiber bending occurs in various modes from fine undulation to large bending, then classification and quantitative evaluation is needed, but no technique has been available for classifying or quantitatively evaluating them

Engineering Contradiction:
Improvebending mode classification capabilityVSAvoidquantitative evaluation precision
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent segments the fiber into multiple sections by extracting coordinates of multiple points along its length. This segmentation allows different portions of the fiber to be analyzed independently, enabling classification of various bending modes (fine undulation vs. large bending) and quantitative evaluation of each segment's contribution to overall fiber deformation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS10223481B2Computer-aided resin behavior analyzer
Publication Date: 2019.03.05 HONDA MOTOR CO LTD
  • US10223481B2 patent drawing
  • US10223481B2 patent drawing
  • US10223481B2 patent drawing

AI summary

In a computer-aided resin behavior analyzer that analyze behavior of a continuous fiber and long discontinuous fiber incorporated in a resin during molding in a mold under predetermined molding conditions through a simulation program installed on a computer, the simulation program is configured to calculate, when analysis conditions including at least multiple nodes F of the fiber is inputted, a bending rate Af of the fiber with respect to an evaluated length obtained from at least one node Fn among multiple nodes F anticipated under the molding conditions based on the analysis conditions, and to evaluate bending of the fiber based on the bending rate Af with respect to the evaluated length.