为3D打印机龙门架设计被动减振系统，提升高速打印精度。
Passive Vibration Control of a 3-D Printer Gantry
- 在挤出机滑块上加装弹簧-质量-阻尼减振器。
- 优化参数后振动幅值降低42%，位置误差显著减少。
- 适用于高速运行的机器人、定位器等开环控制系统。
提升增材制造能力对广泛机器人系统的未来发展至关重要。这些设备可集成到现有机器人系统中，实现部件制造、维修及定制化零件生产。熔融沉积成型（FFF）是目前最常见且成熟的一种增材制造工艺，但随着打印速度提高，振动引起的定位误差问题日益严重。本研究改进并扩展了FFF龙门架的动态模型，引入附加于挤出机滑块的被动弹簧-质量-阻尼系统控制器，并通过最优参数进行调谐。案例研究验证了该方法的有效性，提出了实施建议。该工作对采用开环控制且易受振动影响的机电系统（如多种机器人、拾放设备、定位器等）具有重要参考价值。
原文摘要 · Abstract (English)
Improved additive manufacturing capabilities are vital for the future development and improvement of ubiquitous robotic systems. These machines can be integrated into existing robotic systems to allow manufacturing and repair of components, as well as fabrication of custom parts for the robots themselves. The fused filament fabrication (FFF) process is one of the most common and well-developed AM processes but suffers from the effects of vibration-induced position error, particularly as the printing speed is raised. This project adapted and expanded a dynamic model of an FFF gantry system to include a passive spring-mass-damper system controller attached to the extruder carriage and tuned using optimal parameters. A case study was conducted to demonstrate the effects and generate recommendations for implementation. This work is also valuable for other mechatronic systems which operate using an open-loop control system and which suffer from vibration, including numerous robotic systems, pick-and-place machines, positioners, and similar.
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