Estimate the fundamental frequency of the beam shown in Fig. 6.9 using Dunkerley's formula for the following data:

(a) \(m_{1}=m_{3}=5 m, m_{2}=m\) and

(b) \(m_{1}=m_{3}=m, m_{2}=5 m\).

Figure 6.9:-

Transcribed Image Text:

1031 11 ja21 F2 1, 1a12 m m m3 x1(0) 7x2(1) x3(1) 1013 (a) FIGURE 6.9 Beam deflections. (b) 1032 22 F3=1 33