A 54-kg air compressor operates at speeds between 800 and \(2000 \mathrm{rpm}\) and has a rotating unbalance of \(0.23 \mathrm{~kg} \cdot \mathrm{m}\). Design an isolator with a damping ratio of 0.15 such that the transmitted force is less than \(1000 \mathrm{~N}\) at all operating speeds.