Loo Wen-da, Gao Shi-qiao. The Effect of Local Geometric Imperfections of Rotational Shell on Its Natural Frequencies and Models[J]. Applied Mathematics and Mechanics, 1987, 8(11): 953-958.
Citation: Loo Wen-da, Gao Shi-qiao. The Effect of Local Geometric Imperfections of Rotational Shell on Its Natural Frequencies and Models[J]. Applied Mathematics and Mechanics, 1987, 8(11): 953-958.

The Effect of Local Geometric Imperfections of Rotational Shell on Its Natural Frequencies and Models

  • Received Date: 1986-10-28
  • Publish Date: 1987-11-15
  • In this paper,an additional stiff ness matrix of meridional geometric imperfections was formed by considering the geometric imperfections as initial displacements based on reference[7].Then,natural frequencies and models of rotational shell with symmetric geometric imperfections were analysed by perturbation method.From the computed example,it was known that the effect of geometric imperfections of frequencies is to increase them,and the larger the range of imperfection,the more the frequencies would be increased.
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