A \(150 \mathrm{~kg}\) pump experiences large-amplitude vibrations when operating at \(1500 \mathrm{rpm}\). Assuming this is the natural frequency of a SDOF system, design a dynamic vibration absorber such that the lower natural frequency of the two degree-of-freedom system is less than \(1300 \mathrm{rpm}\) and the higher natural frequency is greater than \(1700 \mathrm{rpm}\).