arXiv:2602.08285cs.RO2026-02

用生成式设计优化软体机械手,安全抓取脆弱珊瑚

ReefFlex: A Generative Design Framework for Soft Robotic Grasping of Organic and Fragile objects

  • 将复杂抓握任务简化为运动基元,实现多目标优化
  • 抓取成功率提升,干扰抗性与定位精度更高
  • 适合珊瑚修复等高难度柔性物体自动化场景

气候变化、外来物种及人类活动正以空前速度破坏全球珊瑚礁,威胁其生物多样性和渔业资源,并削弱海岸防护能力。解决这一挑战需要可扩展的珊瑚再生技术,以培育气候适应性强的物种并加速自然恢复过程;然而,缺乏安全可靠的工具来处理脆弱珊瑚,阻碍了相关进展。本文提出ReefFlex,一种生成式软指设计方法,探索多样化的软指形态,生成一组可在杂乱环境中安全抓取几何异质性珊瑚的候选方案。核心洞察在于将异质抓握编码为一组简化的运动基元,从而构建一个简化且可处理的多目标优化问题。为验证该方法,我们设计了一款用于珊瑚康复的软体机器人,可在岸上水族设施中生长和操作珊瑚,为未来海底种植做准备。实验表明,ReefFlex在抓取成功率、抓握质量(干扰抗性、定位精度)方面均优于参考设计,且在珊瑚操作过程中发生的不良事件显著减少。ReefFlex提供了一种通用的软末端执行器设计方法,为此前难以实现的领域(如珊瑚修复中的操作自动化)开辟了路径。

原文摘要 · Abstract (English)

Climate change, invasive species and human activities are currently damaging the world's coral reefs at unprecedented rates, threatening their vast biodiversity and fisheries, and reducing coastal protection. Solving this vast challenge requires scalable coral regeneration technologies that can breed climate-resilient species and accelerate the natural regrowth processes; actions that are impeded by the absence of safe and robust tools to handle the fragile coral. We investigate ReefFlex, a generative soft finger design methodology that explores a diverse space of soft fingers to produce a set of candidates capable of safely grasping fragile and geometrically heterogeneous coral in a cluttered environment. Our key insight is encoding heterogeneous grasping into a reduced set of motion primitives, creating a simplified, tractable multi-objective optimisation problem. To evaluate the method, we design a soft robot for reef rehabilitation, which grows and manipulates coral in onshore aquaculture facilities for future reef out-planting. We demonstrate ReefFlex increases both grasp success and grasp quality (disturbance resistance, positioning accuracy) and reduces in adverse events encountered during coral manipulation compared to reference designs. ReefFlex, offers a generalisable method to design soft end-effectors for complex handling and paves a pathway towards automation in previously unachievable domains like coral handling for restoration.

软体机器人珊瑚修复生成设计

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