system dynamics and vibration homework.
I don’t understand this Engineering question and need help to study.
Question 3 (Modes of vibrating systems). Consider the system shown in Figure 3.
- (a) The masses are m1 = 10 kg and m2 = 30 kg. The spring constants are k1 = 104 N/m and k2 = 2 × 104 N/m. Calculate the natural frequencies and the mode ratios (A1/A2) of the system.
- (b) Explain the meaning of the mode ratios in relation to how the masses move relative to each other and the frequencies at which these motions occur.