Earticle

초록

영어

Finite element analysis is widely used to predict the stress and deformation behavior of structures, but constructing analysis models and assigning boundary conditions require specialized expertise, limiting accessibility for non-experts. Recently, AI agents based on large language models (LLMs) have been actively studied. However, commercial LLMs cannot access confidential corporate data. They also carry the risk of hallucination, where incorrect values may be reflected in the analysis results. In addition, security concerns often prevent their use with proprietary design data. To address these limitations, this study employed open-source LLM that can be operated within a closed network, to automatically extract design conditions from natural language input, and introduced a parsing and validation procedure to prevent hallucination-induced errors. The validated data were reflected in the analysis model by precisely substituting only pre-defined tagged variables within the pre-processing python script, thereby modifying the model without altering the remaining script structure. The proposed system was applied to a case study involving the design modification of robot arms in a multi-joint robot used for ship-building industry; the cross-sectional shape, length, and material of the robot arms specified through natural language input were accurately reflected in the generated script, while unintended parts remained unchanged. These results demonstrate that users without expertise in finite element analysis can modify analysis models and obtain results solely through a conversational interface.

목차

Abstract
1. 서론
2. Proposed model
2.1 Overall Workflow
2.2 Local LLM-Based Interface
2.3 Automatic modification of the script
3. Case study
3.1 Application to multi-joint robot
3.2 Result
4. Discussion
5. Conclusion
Acknowledgements
References

키워드

저자

• 표창민 [ Changmin Pyo | Senior Researcher/ Korea institute of industrial technology ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620