Hybrid control of electrohydrodynamic 3D printer cone jet

In this article, the control of an electrohydrodynamic 3D printer is studied. The proposed controller has a hybrid piecewise linear feedback form which is designed based on a hybrid model of the printer. The hybrid model is obtained via a gray box identification process whose structure is proposed utilizing the results of the finite element simulation of the printer within the COMSOL Multiphysics software. The asymptotic stability of the hybrid control combined with a hybrid observer is proven using the Lyapunov theory. In addition, the obtained control is applied to the finite element model of the printer to check its performance which shows the success of the controlled system in tracking the reference height for the printer jet cone.

Automated summary

This article studies the control of an electrohydrodynamic 3D printer. The proposed controller is based on a hybrid model of the printer and uses a hybrid piecewise linear feedback form. The hybrid model is obtained through a gray box identification process using the results of finite element simulation. The asymptotic stability of the hybrid control combined with a hybrid observer is proven using Lyapunov theory. Additionally, the control is applied to the finite element model to test its performance in tracking the reference height for the printer jet cone.