Numerical simulation and experiment on wrapping characteristics between sugarcane leaves and rotating roller of returning machine

Abstract

In order to solve the problem of wrapping between sugarcane leaves and rotating roller of returning the machine, the length of rotating rollers (A), the number of bulges (B), and the leaf quantity (C) were taken as influence factors in this paper. A finite element model was built to simulate the process of the leaf wrapping around the rotating roller. Through the simulation analysis of the deviation value and the wrapping time, the results showed that: (1) these factors all had an influence on the wrapping degree by comparing the average deviation value; (2) there were four stages in the wrapping process; (3) the longer the roller length, the more the number of bulges, and the less the leaf quantity, causing the less the wrapping time. In addition, a test system was designed and constructed, and the model was validated using single-factor tests compared with simulation results. The results of the experiment using the orthogonal test method, range method, variance method, and comprehensive balance method showed that: (1) the priority order of these factors was B > C > A; (2) the effects of these factors were all significant; (3) the best wrapping combination was A1B2C4; and the best anti-wrapping combination was A4B4C1. This paper not only provides a reliable finite element model of the leaf wrapping around the rotating roller, but also provide a foundation for the optimization and improvement of the rotating roller’s anti-wrapping characteristics.