3D打印精度及運(yùn)動(dòng)控制技術(shù)研究
[Abstract]:3D printing is a new material-increasing manufacturing technology, and high-precision printing may lead to a new industrial revolution. With the development of 3D printing technology, 3D printing technology has gradually entered the civil market, attracting the attention and interest of all circles at home and abroad. Taking (Fused deposition modeling,FDM as an example, the paper discusses the principle of 3D printer and analyzes the factors that affect the printing accuracy. From the point of view of motion control, the idea of motion subdivision control of 3D printer stepping motor is put forward, and the traditional PID, fuzzy PID neural network PID control algorithm is analyzed and compared. The main work is as follows: first, the material that affects the printing accuracy is analyzed. Technology, step motor motion control and other factors, and focus on the motion control of 3D printing accuracy; Secondly, the stepping motor is the executive component of the 3D printing system, which determines the precision of the motion control system. The controllability of two-phase hybrid stepping motor is analyzed by establishing a two-phase hybrid stepping motor model. In order to improve the control precision, the idea of step motor subdivision control is proposed. Thirdly, the fuzzy PID and neural network PID subdivision control algorithm of step motor is proposed, and the simulation results verify the proposed control algorithm. The simulation results show that compared with the traditional PID control algorithm, the proposed algorithm improves the response speed and robustness, and provides a theoretical basis for improving the accuracy of 3D printing.
【學(xué)位授予單位】:貴州師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TP273;TP183;TP391.73
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