According to the existing research, the natural frequency of a human-standing body is about 7.5 Hz , and the frequency of a sitting posture in the cab is generally 4–6 Hz. The natural frequency of the main body parts is shown in Table 1.
Read moreWhat is natural frequency and why is it important?
When an object vibrates at a frequency equivalent to its natural frequency, the vibration of the amplitude increases significantly which could lead to irreparable damage , therefore, it is important to know the natural frequency.
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