Instability of the printing jet during the three-dimensional-printing process. Issue 4 (December 2021)

• Record Type: Journal Article
• Authors: Zuo, Yuting; Liu, Hongjun
• Is Part Of: Journal of low frequency noise, vibration, and active control. Volume 40:Issue 4(2021)
• Page Start: 1795
• Page End: 1803
• Publication Date: 2021-12
• Subjects: Bending energy -- electrospinning -- electrospraying -- printing -- variational theory; Vibration -- Periodicals; Noise -- Periodicals; Sound -- Periodicals; Damping (Mechanics) -- Periodicals; Damping (Mechanics); Noise; Sound; Vibration; Periodicals; 620.205
• DOI: 10.1177/14613484211021518
• Languages: English
• ISSNs: 1461-3484

Abstract

Euler's instability criterion is widely used in engineering to design a column. However, this criterion is not suitable for judging the instability of a three-dimensional printing process because the axial motion of the printing jet has to be considered. A variational principle is established, and an equivalent Eulerian load is obtained. The theoretical results show that a higher printing velocity makes the moving jet much more stable, and an experiment is designed to verify our theoretical prediction.