Directional Design of Autogyro Diffusion Models Based on FAHP Weight-driven LoRA

TUO Weitao; YANG Ming; LI Yibo

doi:10.19554/j.cnki.1001-3563.2026.14.002

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (14) : 14-26. DOI: 10.19554/j.cnki.1001-3563.2026.14.002

Special subject: Innovation in Human Factors Engineering andIndustrial Design for Aviation Equipment

Directional Design of Autogyro Diffusion Models Based on FAHP Weight-driven LoRA

TUO Weitao^*, YANG Ming, LI Yibo

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Abstract

The work aims to explore a directional design method for diffusion models driven by quantified design intents to realize the transformation from "random generation" to "parametric precise generation" and address the challenges of uncontrollable parameters, style deviation, and structural distortion in existing AIGC-based exterior design for complex aviation equipment. By employing the FAHP (Fuzzy analytic hierarchy process) to quantify design requirement weights and mapping them to LoRA strength parameters, semantic controllable driving was achieved. A "semantic avoidance" strategy was introduced to suppress multi-style fusion conflicts, combined with a ControlNet dual-constraint network to minimize structural distortion within a Flux.1 workflow on the ComfyUI platform. Results showed that the generated autogyro schemes significantly outperformed traditional AIGC methods in structural logic and semantic consistency. Ablation experiments and expert reviews showed high requirement matching without evident semantic conflicts. The design efficiency was significantly enhanced. Further validation through 3D reconstruction and clay modeling confirmed that the schemes maintained core aesthetic features and structural proportions, proving engineering feasibility. In combination with weight mapping, semantic avoidance, and dual-constraint networks, FAHP can effectively resolves fusion conflicts and structural instability, enabling parametric precision driving, significantly enhancing the controllability and efficiency of AIGC-assisted design in the research and development of aviation equipment, and providing a quantifiable methodological reference for the industrial design of complex products.

Key words

autogyro / FAHP / diffusion model / LoRA / exterior design / directional design / clay model

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TUO Weitao, YANG Ming, LI Yibo. Directional Design of Autogyro Diffusion Models Based on FAHP Weight-driven LoRA[J]. Packaging Engineering. 2026, 47(14): 14-26 https://doi.org/10.19554/j.cnki.1001-3563.2026.14.002

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