Transverse Vibration of a Moving Viscoelastic Hard Membrane Containing Scratches

Mingyue Shao, Jimei Wu, Yan Wang, Hongmei Zhang and Qiumin Wu

Mathematical Problems in Engineering, 2019, vol. 2019, 1-13

Abstract:

The transverse vibration and stability of a moving viscoelastic hard printing membrane containing scratches are investigated. Based on the viscoelastic differential constitutive relation, thin plate theory, and d’Alembert principle, the differential equation of a moving viscoelastic hard membrane with a straight scratch through the surface is derived by using the continuity condition of the scratches. The complex characteristic equation is obtained by using the differential quadrature method. The effects of the scratch depth and scratch position on the critical instability speed of the moving hard membrane were highlighted by solving the differential equation and numerical calculation, and the coupling effects of speed and scratch depth on vibration characteristics of the hard membrane are also analyzed. Numerical calculation results show that the hard membrane experiences divergence instability when the actual printing speed is v =23.2 m/s, and the membrane is stable when v <23.2 m/s. The theoretical guidance and method for scratches detection of the precision coated hard membrane are provided.

Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:5671361

DOI: 10.1155/2019/5671361

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