Let’s extend the two degree of freedom free vibration analysis from Chap. 4 to include externally applied forces so that we can analyze two degree of freedom forced vibration. The general case is that a separate harmonic force is applied at each coordinate; see Fig. 5.1. However, we are considering only linear systems, so we can apply superposition. This means that we can determine the system response due to each force separately and then sum the results to find the combined effect.
- Complex matrix inversion
- Direct frequency response function
- Cross frequency response function
- Modal analysis
- Dynamic absorber