Modeling and Simulation of a Semi-Automated Injera Baking Machine: Injera Extracting Kinematic Mechanism

Abstract

This study presents the kinematic modeling and simulation of an injera extracting mechanism of a semi-automated injera baking machine. The mechanical structures and mechanisms of injera baking machine and extracting mechanism was designed according to the classical existing electrical baking mitads integrating with some mechanisms in order to obtain the requested motion. The motion equation of injera extracting mechanism was formulated by referring to the motion analysis of scotch yoke mechanism. And for the case of the dynamic behaviors of time sequential events, i.e., opening and closing of pan-lid mechanism and polishing of pan, pouring of dough, injera baking machine is used in the simulation. The simulation of injera extracting mechanism was done in rigid multi-body dynamics of ANSYS Version 19.2 software by importing the 3D assembled model from SolidWorks. The motion equation of injera baking machine and extracting mechanism is done in PTC Creo Mathcad prime 3.0 in order to check either the ANSYS simulation is approached to the dynamic behaviors or not. In addition, it helps to be clear with the SI-units and to avoid manual calculation errors, to assign the variables once and recall them through all the design in the same document. In this study, to compare and validate the analysis result of the simulation of the motion, there is no other related literature review is done; due to this, as a reference, considering the kinematic motion behaviors and events with the understanding of the real events of injera baking process is very important. Accordingly, the analysis results of simulation of motion is valid corresponding to the effectiveness of the injera baking machine consecutive activities.