【标题】Mathematical Analysis and Design of a Novel 5-DOF 3D Printer Robotic System
【参考中译】一种新型五自由度三维打印机机器人系统的数学分析与设计
【类型】 期刊
【关键词】 Additive manufacturing; Parallel manipulator; Kinematics; Workspace
【参考中译】 加法制造；并联机构；运动学；工作空间
【作者】 Ahmet Dumlu; Mehran Mahboubkhah; Kagan Koray Ayten; Gurkan Kalinay
【摘要】 In this study, the mathematical analysis and design of a new 3D printer with 5 degrees of freedom were carried out. Thanks to the developed system, a new concept has been brought to the multi-axis 3D printer mechanisms, and thus, it is aimed to improve the part quality in additive manufacturing (AM) processes. As a result of adding the 4th and 5th axes to the moving platform of the system, the production time of the part was accelerated. It is also possible to print more complex and curved shapes with less support. To design a system with these features, first of all, the kinematic analysis of the system was obtained using vector algebra, and the workspace of the current printer was determined by considering the system constraints in this article. By giving detailed information about the mechanical and electrical components of the designed system, the working principle of the whole system is presented. According to the findings obtained in the studies, the kinematic analyses performed for the proposed system proved to be correct and a new system was proposed especially for additive manufacturing technologies.
【参考中译】 本研究对一种新型五自由度3D打印机进行了数学分析和设计。由于该系统的开发，为多轴三维打印机机构带来了新的概念，从而旨在提高加法制造(AM)过程中的零件质量。由于在系统的动平台上增加了4轴和5轴，加快了零件的生产时间。还可以用较少的支撑物打印更复杂和弯曲的形状。为了设计出具有这些特点的系统，本文首先利用矢量代数对系统进行了运动学分析，并考虑了系统的约束条件确定了当前打印机的工作空间。通过对所设计系统的机械和电气部分的详细介绍，介绍了整个系统的工作原理。根据研究结果，对所提出的系统进行了运动学分析，证明是正确的，并提出了一种新的系统，特别是针对添加剂制造技术。
【来源】 Elektronika ir Elektrotechnika 2022, vol.28, no.4
【入库时间】 2023/2/27
【标题】Analytical Synthesis of Five-Bar Linkage used for 3D Printer Structure
【参考中译】用于三维打印机结构的五杆机构的解析综合
【类型】 会议
【关键词】 Five-bar linkage; Planar mechanism; 3D printer
【参考中译】 五杆机构；平面机构；3D打印机
【作者】 Tivadar Demjen; Erwin-Christian Lovasz; Marco Ceccarelli; Carmen Sticlaru; Antonio-Marius-Flavius Luputi
【摘要】 The paper shows an analytical synthesis of five-bar linkages with singularities free dexterous workspace. The synthesis equations allows the analytical computation of the link lengths of a symmetrical five-bare linkage using revolute joints. The study shows also the forward and invers kinematic relationships, as well as the investigation of the imposed dexterous workspace. The authors aims to use the five-bar linkage for designing a 3D Printer.
【参考中译】 给出了一种具有奇异自由度工作空间的五杆机构的解析综合方法。该综合方程允许使用回转联接对对称五裸连杆机构的连杆长度进行解析计算。研究还显示了向前和向后的运动学关系，以及对施加的灵巧工作空间的调查。作者的目标是使用五杆机构来设计一台3D打印机。
【来源】 Advances in Italian Mechanism Science - Proceedings of the 4th International Conference of IFToMM Italy 4th International Conference of IFToMM Italy (IFIT 2022)
【标题】3D Metal Printed Ka-Band Quad-Ridge Horn Antenna
【参考中译】3D金属印制Ka频段四脊喇叭天线
【作者】 Avinash Sharma; Robert K. Stilwell; Steve Szczesniak; Carl Carpenter
【摘要】 A Ka-Band Quad-Ridge Horn Antenna (QRHA) was fabricated using two fabrication methods. The first method used conventional subtractive manufacturing, where the QRHA was fabricated from a block of A6061 aluminum using a 5-axis Computer Numerical Control (CNC) machine. The second method used additive manufacturing where the QRHA was fabricated from an aluminum alloy powder using a Selective Laser Melting (SLM) printer. Both antennas were tested in a compact antenna range and the performance was compared over 18 to 40 GHz. The gain measurements showed the 3D printed QRHA had less than 0.6 dB lower gain than the machined QRHA over the 18 to 31 GHz frequency range and less than 1.2 dB lower gain when tested up to 40 GHz operation. Based on the results, the feasibility of using metal 3D printing to fabricate wideband horn antennas operating up to Ka-Band was shown.
【参考中译】 采用两种制作方法制作了Ka频段四脊喇叭天线。第一种方法使用传统的减法制造，其中QRHA由一块A6061铝制成，使用5轴计算机数控(CNC)机床。第二种方法使用添加剂制造，其中QRHA是使用选择性激光熔化(SLM)打印机从铝合金粉末制造的。这两种天线都在紧凑的天线范围内进行了测试，并在18到40 GHz范围内进行了性能比较。增益测量表明，在18~31 GHz的频率范围内，3D打印的QRHA比机械加工的QRHA的增益低不到0.6dB，当工作频率达到40 GHz时，增益降低不到1.2db。在此基础上，论证了利用金属3D打印技术制作Ka波段宽带喇叭天线的可行性。
【来源】 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI 2022) 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI 2022)