Vibration of a moving web with intermediate supports by a P-type method
YING Shudi1, WANG Yan2, WU Jimei1, 3, WU Qiumin3
1. School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China;
2. School of Civil Engineering and Architecture,Xi’an University of Technology, Xi’an 710048, China;
3. School of Printing,Packaging Engineering and Digital Media Technology,Xi’an University of Technology, Xi’an 710048, China
Abstract:The substrate material of Beiren PRC250 printing machine is web of the weight of 200-300 g/m2, the supporting roller in the multi-color printing process was used as the intermediate support. In this paper, a new P-type higher order differential quadrature method was proposed to solve the vibration of a moving web with intermediate supports. According to the Hamilton principle, the energy expression of the moving web was deduced, the shape function of the element was generated by the interpolation of the newly constructed C1 element. The influence of intermediate support and velocity on transverse vibration of the moving web was analyzed. The results show that complex frequency of the paper tape increases with the setting of the intermediate support, and the stable region becomes smaller with the increase of the speed under the constraint of the simple support and the opposite side free movement. The comparative was carried out by the CAE software, and it is proved that the new method to solve the vibration of the intermediate support moving paper tape is better than finite element software.
应戍狄1,王砚2,武吉梅1, 3,武秋敏3. 基于P型法的中间支承运动纸带横向振动特性研究[J]. 振动与冲击, 2021, 40(8): 230-236.
YING Shudi1, WANG Yan2, WU Jimei1, 3, WU Qiumin3. Vibration of a moving web with intermediate supports by a P-type method. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(8): 230-236.
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