Study on Vibration Characteristics and Human Riding Comfort of a Special Equipment Cab

Table 1

The main part of the human body natural frequency.

Body part	Natural frequency (Hz)
The whole body	7.5
Body torso	7–13
Head	8–12
Thoracic cavity	4–6
Heart	5
Abdominal cavity	6–9
Spine	10–12
Pelvic	6