Flutter mechanism of sheet
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Date
1991-05Author
Watanabe, Y.
Suzuki, S.
Sueoka, Y.
Kunimaru, H.
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Basic study has been conducted on sheet flutter which becomes an obstacle to the operation of printing machines and paper making machines in higher speed. Following three topics are presented in this paper. (1) Fluctuating pressure causes sheet flutter. This fluctuation occurs as the vortex separates at the leading edge of the sheet and grows toward the downstream corresponding to the sheet movement. (2) Characteristics of sheet flutter were clarified with respect to the following points. (a) Flutter mode, (b) Flutter amplitude, (c) Flutter frequency, (d) Influence of damping factor (3) The critical velocity of sheet flutter is determined by the following three parameters. (a) Aspect ratio (b/c), (b) Rigidity parameter (Eh3/12pAc 3), (c) Mass ratio (pph/pAc) (where b = sheet width, c = sheet length, h = sheet thickness, E = Young's modulus, pp= Sheet density, pA= Air density)
Citation
Watanabe, Y., Suzuki, S., Sueoka, Y., & Kunimaru, H. (1991, May). The flutter mechanism of sheet. Paper presented at the First International Conference on Web Handling (IWEB), Stillwater, OK.