Free Vibration Analysis of Rectangular Orthotropic Membranes in Large Deflection

Table 5

𝑎=1m, 𝑏=1m, 𝜎_0𝑥=𝜎_0𝑦=5.0×10³KN/m², and 𝑇₀=0.01m.

Order	𝑚=1, 𝑛=1	𝑚=1, 𝑛=2	𝑚=2, 𝑛=1	𝑚=2, 𝑛=2	𝑚=1, 𝑛=3	𝑚=3, 𝑛=1	𝑚=3, 𝑛=3
Rad/s	242.227	386.497	389.087	492.030	556.943	566.445	756.548
Hz	38.552	61.513	61.925	78.309	88.640	90.153	120.408