There is no strict distinction between high-frequency and low-frequency vibration, generally below 10Hz is low frequency, 10--1000Hz is medium frequency, and above 1000Hz is high frequency.
In the vibration isolation design, the interference vibration above 100Hz is usually called high-frequency vibration, the vibration of 6-100Hz is defined as medium-frequency vibration, and the vibration below 6Hz is low-frequency vibration.
Low frequencies: earthquakes, orbital vibrations
IF: car, generator
High frequency: high-speed rotating equipment, high-speed gears, rolling bearings
What is low frequency vibration and what is the dividing line between high frequency and low frequency? Which vibrations are high frequency and which are low frequency?