Free Vibration Analysis of Rectangular Orthotropic Membranes in Large Deflection

Table 4

𝑎=1m, 𝑏=1m, 𝜎_0𝑥=𝜎_0𝑦=5.0×10³KN/m², and 𝑇₀=0.05m.

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	270.86	499.358	546.065	688.462	880.846	1016.96	1317.63
Hz	43.109	79.475	86.909	109.572	140.191	161.854	209.707