Motion interference detection method and system for three-dimensional modeling structure of engineering machinery

By constructing a kinematic digital twin model and a hierarchical detection method, the problems of automation and accuracy of dynamic interference detection in the three-dimensional model of engineering machinery are solved, realizing efficient, comprehensive and accurate interference detection and providing quantitative data to support design optimization.

CN121835142APending Publication Date: 2026-04-10JIANGSU XCMG STATE KEY LAB TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-22
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing technologies struggle to comprehensively and accurately detect dynamic interference of moving parts in the design of 3D models for engineering machinery. They also rely on engineers' experience, cannot automate or fully cover the dynamic envelope space, and cannot quantify the severity of interference or provide optimization suggestions.

Method used

By constructing a kinematic digital twin model and combining Monte Carlo simulation with actual task path simulation of engineering machinery, motion sequences containing extreme working conditions and task paths are generated. A hierarchical detection method is adopted, including coarse detection and fine detection. Using hierarchical bounding box trees and continuous collision detection algorithms, an interference detection report is generated, providing optimization suggestions.

Benefits of technology

It has achieved fully automated interference detection of the 3D modeling structure of engineering machinery, which improves detection efficiency and accuracy, provides quantitative interference data to support design optimization, and avoids the cost and time loss of discovering major design errors after physical prototype production.

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Abstract

The invention relates to the technical field of engineering machinery simulation, and discloses a motion interference detection method and system for a three-dimensional modeling structure of engineering machinery, and the method comprises the steps: building a kinematics digital twin model based on a three-dimensional model of the engineering machinery; based on the kinematics digital twinborn model, generating a motion sequence containing a limit working condition and a task path through Monte Carlo simulation and engineering machinery actual task path simulation; performing inter-component interference detection on the state of each frame in the motion sequence; post-processing the interference detection result, and generating a detection report comprising the related parameters of the interference part and the optimization direction. The full-process automation from motion simulation to interference detection is realized, the detection efficiency is high, the coverage rate is high, and the detection accuracy is high.
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Citation Information

Patent Citations

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