This document describes three vibration modes of an object. Mode 1 has a frequency range of 4.2-4.5 Hz, Mode 2 has a frequency range of 4.8-5.0 Hz, and Mode 3 has a frequency range of 22.7-22.8 Hz.

1. mode 1 n1 = 4.2 – 4.5 Hz mode 2 n1 = 4.8 – 5.0 Hz mode 3 n1 = 22.7 – 22.8 Hz