ESDU 75030

Natural frequencies of rectangular flat plates with various edge conditions.

Abstract:

ESDU 75030 gives comprehensive curves that enable the natural frequencies to be calculated for the first few modes of vibration of plates having any combination (symmetric or otherwise) of edge conditions from free, simply-supported and clamped. The data apply to plates having the ratio (length of shorter side)/(thickness) greater than 10 and were computed for a Poisson's ratio of 0.3 although a method for taking into account the effect of other values is explained. Results obtained using the curves are accurate to within three per cent. The curves apply to initially unstressed plates but a method is given for taking into account the effect of biaxial in-plane loading; it depends on a knowledge of the critical buckling load in the longer direction and information for predicting that is included. See also ESDU 90016 and ESDUpac A9016 for a program for predicting natural frequencies of orthotropic and isotropic plates including the effect of any combination of shear and direct in-plane loading.

Indexed under:

Flat Rectangular Plates

Details:

Data Item ESDU 75030
Format:	PDF with interactive graphs
Status:	Amendment (C), 01 Sep 1995 Published in Release 2000-03 (init)
Previous Releases:	None available
ISBN:	978 0 85679 134 5

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This Data Item contains 42 interactive graph(s) as listed below.

Graph	Title
Figure 2	FF-FF
Figure 3	FF-FS
Figure 4	FF-FC
Figure 5	FF-SS
Figure 6	FF-SC
Figure 7	FF-CC
Figure 8	FF-FF
Figure 9	FF-FS, FF-FC
Figure 10	FF-SS, FF-SC, FF-CC
Figure 11	FS-FF
Figure 12	FS-FS
Figure 13	FS-FC
Figure 14	FS-SS
Figure 15	FS-SC
Figure 16	FS-CC
Figure 17	FS-FF
Figure 18	FS-FS, FS-FC
Figure 19	FS-SS, FS-SC, FS-CC
Figure 20	FC-FF
Figure 21	FC-FS
Figure 22	FC-FC
Figure 23	FC-SS
Figure 24	FC-SC
Figure 25	FC-CC
Figure 26	SS-FF
Figure 27	SS-FS
Figure 28	SS-FC
Figure 29	SS-SS
Figure 30	SS-SC
Figure 31	SS-CC
Figure 32	SC-FF
Figure 33	SC-FS
Figure 34	SC-FC
Figure 35	SC-SS
Figure 36	SC-SC
Figure 37	SC-CC
Figure 38	CC-FF
Figure 39	CC-FS
Figure 40	CC-FC
Figure 41	CC-SS
Figure 42	CC-SC
Figure 43	CC-CC