Purpose

The objective was to evaluate the occupational vibration acting under grapple skidder operators during skidding operation of the Eucalyptus tree bundles.

Methods

The collection of the whole-body vibration data was based on the methodology recommended by the International Organization for Standardization (ISO 8041 and ISO 2631). Then, technical procedure for obtaining vibration data from the operators was performed using a Larson Davis tri-axial vibration meter, model HVM 200 and a tri-axial ICP accelerometer of the seat pad type.

Results

When comparing the values of the weighted acceleration and VDV with the limits established by the European Directive, it is verified that in both tests, the measured values are higher than the one expected by the respective regulation. Compared to the ISO 2631 criteria, both tests provided results located in the danger zone.

Conclusion

The values obtained indicate that occupational exposure may cause health risks to grapple skidder operators. The results showed the need of actions that can minimize the transmission of vibration to the operators due to the level being above the guidelines, despite all the technology used by manufacturers of machinery for harvesting.

中文翻译：

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操作员暴露于抓斗集材机木材提取过程中的整体振动

目的

目的是评估桉树束打滑作业期间抓斗打滑机操作员的职业振动。

方法

全身振动数据的收集基于国际标准化组织（ISO 8041和ISO 2631）推荐的方法。然后，使用Larson Davis HVM 200型三轴振动仪和座垫型三轴ICP加速度计执行从操作员那里获取振动数据的技术程序。

结果

将加权加速度和VDV的值与欧洲指令规定的限值进行比较时，可以证明在两种测试中，测量值均高于相应法规所预期的值。与ISO 2631标准相比，两种测试均提供了位于危险区域的结果。

结论

获得的值表明，职业接触可能对抓斗打滑者造成健康风险。结果表明，尽管机械制造商使用了所有收割技术，但由于水平高于指南，因此需要采取措施以最大程度地减少振动传递给操作员的风险。