为敏捷固定翼无人机设计鲁棒协同优化框架,提升抗干扰能力。
Robust Co-design Optimisation for Agile Fixed-Wing UAVs
- 双层优化:高层设计+约束轨迹规划,融合风扰与参数不确定
- 在3个飞行任务中优于传统方法,显著提升抗扰性能
- 适合需在复杂环境飞行的高机动无人机研发人员
自主系统协同设计优化通过联合优化物理结构与控制策略,已成为序列化方法的有力替代。然而,现有框架常忽视在非结构化真实环境中所需的鲁棒性。对于处于飞行包线边缘的敏捷无人飞行器(UAV),缺乏鲁棒性会导致设计对扰动和模型失配敏感。为此,本文提出一种针对敏捷固定翼UAV的鲁棒协同设计框架,将参数不确定性与风扰直接纳入并行优化过程。采用双层方法:高层循环优化物理设计,通过约束轨迹规划获取基准解,并利用反馈LQR控制在随机蒙特卡洛样本集上评估性能。在三个敏捷飞行任务中验证,该策略持续优于确定性基线。结果表明,本方法能自然地调整气动特性(如机翼位置、展弦比),实现任务性能与扰动抑制之间的最优平衡。
原文摘要 · Abstract (English)
Co-design optimisation of autonomous systems has emerged as a powerful alternative to sequential approaches by jointly optimising physical design and control strategies. However, existing frameworks often neglect the robustness required for autonomous systems navigating unstructured, real-world environments. For agile Unmanned Aerial Vehicles (UAVs) operating at the edge of the flight envelope, this lack of robustness yields designs that are sensitive to perturbations and model mismatch. To address this, we propose a robust co-design framework for agile fixed-wing UAVs that integrates parametric uncertainty and wind disturbances directly into the concurrent optimisation process. Our bi-level approach optimises physical design in a high-level loop while discovering nominal solutions via a constrained trajectory planner and evaluating performance across a stochastic Monte Carlo ensemble using feedback LQR control. Validated across three agile flight missions, our strategy consistently outperforms deterministic baselines. The results demonstrate that our robust co-design strategy inherently tailors aerodynamic features, such as wing placement and aspect ratio, to achieve an optimal trade-off between mission performance and disturbance rejection.
Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。