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首页> 外文期刊>African Journal of Biotechnology >Vibration and noise characteristics of hook type olive harvesters
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Vibration and noise characteristics of hook type olive harvesters

机译:钩型橄榄收获机的振动和噪声特性

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The objective of this study was to obtain and evaluate the vibration and noise characteristics of portable hook type mechanical olive harvesters. Experiments included five hook type olive harvesters. In this study, the vibration and sound pressure levels of different harvesters were measured at idling and full load condition. The vibration levels on the handle grip of harvesters were measured and analyzed for both operator’s right and left hand, respectively. The sound pressure level was measured at ear level of the operator. The frequency weighting acceleration was calculated. The vibration total value was expressed as the root-mean-square (rms) of three component values. The acceleration values vary between 5.52 and 39.15 ms-2?for right hand and 4.18 and 61.01 ms-2?for left hand. The equivalent noise pressure levels of the harvesters were measured between 91 and 103 dB (A) in the full loading conditions and between 67 and 80 dB (A) idling working conditions.
机译:这项研究的目的是获得并评估便携式钩型机械橄榄收获机的振动和噪声特性。实验包括五个钩型橄榄收获机。在这项研究中,在空载和满载条件下测量了不同收割机的振动和声压级。测量和分析收割机手柄上的振动水平,分别针对操作员的右手和左手。在操作员的耳朵水平处测量声压水平。计算出频率加权加速度。振动总值表示为三个分量值的均方根(rms)。加速度值在右手5.52到39.15 ms-2?之间,左手在4.18到61.01 ms-2?之间变化。在满载条件下测得的收割机等效声压级为91至103 dB(A),在空转工作条件下测得的等效噪声压级为67至80 dB(A)。

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