Question

For the above problem, determine the First Natural Frequency, W1 of the system, in rad/s: 3,0x40,Nmk7-0.9x103 Nim, k3-35x103 Nim, mrl-3.0 kg and m2 = 3.0 kg Take k For the above problem, determine the Ratio of the Normal Modes for the Second Natural Frequency, r 2 using 2 Take ky-8.25x103 N/m, k2 1,.35-103 N/m, k3-6.25-103 Nim, my-0.5 kg and m2-10 kg ystem shown below, where kjk2. k3 and k4 are stiffnesses of the given springs kFi(t) m2 ms Point 1 +x1-point 2P-Point 3-c4 The stiffness matrix: k11 k12 k13 [A] =|k21 k22 k23 31 32 33 Take: k,-120 N/in, k27: 170 N/m. k3 # 60 Nm and k4-: 110 Nm .. Find the values of the stiffiess influence coefficients k11 12 and k33- k23 k22

Answer 1

7(レ 13s lto 允い 214

0 0M 29。 0 0 30