Automated 3D Interference Detection for Structural Design

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Solution Overview

Problem

Designing structures while considering interference with other objects increases the burden on designers, as they need to account for interactions between structure components and external objects, such as equipment housed within the structure.

Innovation Solution

A design assistance system that recognizes member and object existence areas on a three-dimensional coordinate system, determines interference between them, and outputs warnings, reducing the designer's burden by simplifying the identification of potential interferences through an input unit, member recognizing unit, object recognizing unit, interference determining unit, and warning output unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the designer manually checks interference between structure members and external objects, then the design accuracy is improved, but the design time and complexity increase

Engineering Contradiction:
Improveinterference detection accuracyVSAvoiddesign time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical checking with automated computer-based interference determination. The system uses coordinate data from CAD models to automatically calculate and determine interference between structure members and external objects, eliminating the need for manual measurement and visualization checks.

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

Solution Approach 2:

The patent introduces an intermediary computer system that acts as a mediator between the designer and the interference checking process. This intermediary automatically processes coordinate information, performs interference calculations, and presents results to the designer, reducing the designer's direct involvement in time-consuming manual checks.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If the designer manually checks interference between structure members and external objects, then the design accuracy is improved, but the device complexity increases

Engineering Contradiction:
Improveinterference detection accuracyVSAvoiddesign process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex manual interference checking processes with automated computer-based calculations. The system handles the complexity of coordinate transformations, interference determination algorithms, and result visualization automatically, simplifying the design process for the user.

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

Solution Approach 2:

The system performs self-service by automatically determining interference without requiring the designer to manually check each component. The computer system independently processes coordinate data, performs calculations, and generates interference determination results, freeing the designer from complex manual analysis.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If existing part models are fitted into wireframe models for design assistance, then the ease of operation is improved, but the ability to detect interference with external objects deteriorates

Engineering Contradiction:
Improvedesign easeVSAvoidinterference detection capability
Core Design Contradiction:
Ease of operationVSDifficulty of detecting and measuring

Solution Approach 1:

The patent performs preliminary action by obtaining coordinate information of external objects before conducting interference determination. The system retrieves and stores coordinate data of surrounding objects in advance, so that when interference checking is needed, the data is already prepared and available for immediate calculation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements universality by creating a system that handles both internal structure design and external interference checking through a unified coordinate-based approach. The same coordinate data structure is used for both representing structure members and external objects, allowing the system to perform multiple functions (design assistance and interference detection) through a single integrated process.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11361115B2Design assistance system, design assistance program, and design assistance method
Publication Date: 2022.06.14 MISUMI
  • US11361115B2 patent drawing
  • US11361115B2 patent drawing
  • US11361115B2 patent drawing

AI summary

To provide a design assistance system, a design assistance program, and a design assistance method which are capable of reducing or eliminating the burden on a designer of a structure when designing the structure. A design assistance system 10 includes an object recognizing unit 112 and an interference determining unit 113. The object recognizing unit 112 recognizes an object existence area which is an existence area of a different object A2 from the structure A1 on a three-dimensional coordinate system in accordance with information including the position of the object A2 on the three-dimensional coordinate system which has been specified through an input unit 12. The interference determining unit 113 determines the presence or absence of interference between each of plurality of members and the object A2 based on respective member existence areas of the plurality of members and the object existence area.