Question

Consider the figure below. The material is Al, E 69 GPa, p 2700 kg/m3 d2-0.02 m d,-0.01 m b, 0.15 m 0.25 m L-0.4 m a) Calculate the fundamental frequency of the round-sectioned beam using the Rayleigh approximation and using W(x) for the first mode of a simple-simple beam. BTW, 1d4/64 b) Calculate the fundamental frequency of a beam with constant diameter di and also with constant diameter d2. Show that the value from part a) lies in between

Answer 1

Guum that 3) tII0C 181 1211 → 3) Temperatur (To F ule Hinow that - VA 3183 e A, Q-10 ! 歌體)" ue Know that At To F 62.yxる. 183 Xセy/12 rubulent 3.432 Xio