增材制造多孔填充气动网络执行器

IF 2.3 3区 工程技术 Q2 ENGINEERING, MECHANICAL
Actuators Pub Date : 2023-11-07 DOI:10.3390/act12110414
Giuliano A. Giacoppo, Julia Hötzel, Peter P. Pott
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引用次数: 0

摘要

本研究项目利用Arburg Freeformer 300-3X 3D打印机研究了基于液滴加药原理的气动执行器的增材制造。所开发的结构包括多孔的内填料和致密的密闭腔室。通过选择性地改变多孔内填料的填充密度,实现了不同的致动器膜挠度。通过连接各致动器,开发了一种可用于内源性机器人的气动网络致动器。为了描述增材制造气动执行器的膜挠度,建立了考虑增材制造和多孔填充影响的数学模型。通过专门的测试平台,气动执行器的预测行为在定性上是一致的。此外,直径为17 mm,高度为76 mm的气动网络执行器(PneuNet)由9个不同填充密度的腔室组成,在8 bar的压力下可弯曲82°。我们的研究表明,在生产过程中填充密度的变化导致了不同的膜挠度。建立的数学模型提供了令人满意的预测,尽管增材制造的影响需要实验确定。后处理仍然是实现这些执行器充分弯曲潜力的必要步骤,尽管气密性方面的挑战仍然存在。未来的研究方法包括研究腔室在多个方向上的挠曲行为,研究替代材料,优化打印工艺以提高机械性能和可靠性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Additively Manufactured Porous Filling Pneumatic Network Actuator
This research project investigated the additive manufacturing of pneumatic actuators based on the principle of droplet dosing using an Arburg Freeformer 300-3X 3D printer. The developed structure consists of a porous inner filling and a dense, airtight chamber. By selectively varying the filling densities of the porous inner filling, different membrane deflections of the actuator were achieved. By linking the actuators, a pneumatic network actuator was developed that could be used in endorobotics. To describe the membrane deflection of an additively manufactured pneumatic actuator, a mathematical model was developed that takes into account the influence of additive manufacturing and porous filling. Using a dedicated test rig, the predicted behavior of the pneumatic actuators was shown to be qualitatively consistent. In addition, a pneumatic network actuator (PneuNet) with a diameter of 17 mm and a height of 76 mm, consisting of nine chambers with different filling densities, could be bent through 82° under a pressure of 8 bar. Our study shows that the variation of filling densities during production leads to different membrane deflections. The mathematical model developed provides satisfactory predictions, although the influence of additive manufacturing needs to be determined experimentally. Post-processing is still a necessary step to realize the full bending potential of these actuators, although challenges regarding air-tightness remain. Future research approaches include studying the deflection behavior of the chambers in multiple directions, investigating alternative materials, and optimizing the printing process to improve mechanical properties and reliability.
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来源期刊
Actuators
Actuators Mathematics-Control and Optimization
CiteScore
3.90
自引率
15.40%
发文量
315
审稿时长
11 weeks
期刊介绍: Actuators (ISSN 2076-0825; CODEN: ACTUC3) is an international open access journal on the science and technology of actuators and control systems published quarterly online by MDPI.
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