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Vibration on self-propelled forage harvesters

A study was conducted to quantify whole-body Vibration (WBV) emission and likely operator daily exposure levels associated with the normal operation of self-propelled forage harvesters. A customer survey was distributed to purchasers of recent machines, to determine information concerning typical machine usage and operator perception of WBV levels. Comprehensive WBV measurements were made on 6 working machines, each encompassing 4-5 hours of commercial activity, to provide representative samples of WBV time-histories. Frequency analysis of the vibration data and direct observation provided information on the potential and need for reducing operator WBV exposure in each instance.

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