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首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Seat selection guidelines to reduce whole-body vibration exposure levels in the SA mining industry
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Seat selection guidelines to reduce whole-body vibration exposure levels in the SA mining industry

机译：座椅选择准则，以减少南非矿业中的全身振动暴露水平

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This article deals with an investigation into the specification and use of appropriate seating systems to reduce whole-body vibration (WBV) exposure in typical vehicles used in the SA mining industry. The EU Directive EU/44/2002 to be legislated in 2005 in European countries, provides legal and economic motivation for this project. The criteria for seat selection can be condensed to the requirements in the directive, which mandates an action level of 0.5 m/s~2 and a vibration exposure limit of 1.15 m/s~2 for an equivalent 8-hour daily exposure period. As part of this study six suspension seats, which the manufacturers claim satisfy the requirements in ISO 70966, were tested to determine the most suitable seat for an articulated dump track. Six test subjects, three 'light' and three 'heavy' as specified in ISO 70966 were used to estimate the seat transmissibility functions in the vertical direction of the six different suspension seats. Transmissibility functions were measured in the laboratory with two excitation levels of 1 m/s~2 and 2 m/s~2 r.m.s. in the 0.5-30 Hz frequency range, as well as one spectrum approximating the EMS spectral class, SEAT values were calculated for road vibration data measured on a typical articulated dump track. A set of seat selection guidelines that can be followed by vehicle manufacturers and suppliers, procurement officers and and the technical staff on a mine is proposed in this article. It is recommended that additional studies of the use and operating conditions of seating systems in the SA industry, as well as an epidemiological survey be commissioned to gather additional information on this subject.
机译：本文研究了适当的座椅系统的规格和使用，以减少SA采矿业中使用的典型车辆的全身振动（WBV）暴露。将于2005年在欧洲国家立法的EU / 44/2002欧盟指令为该项目提供了法律和经济动力。座椅选择的标准可以与指令中的要求相一致，该指令要求在等效的每日8小时暴露时间内动作水平为0.5 m / s〜2，振动暴露极限为1.15 m / s〜2。作为这项研究的一部分，测试了六个制造商声称满足ISO 70966要求的悬架座椅，以确定最适合铰接式倾卸轨道的座椅。按照ISO 70966的规定，使用六个测试对象（三个“轻”和三个“重”）来估计六个不同悬架座椅在垂直方向上的座椅传递功能。在实验室中以1 m / s〜2和2 m / s〜2 r.m.s的两个激发水平测量透射率函数。在0.5-30 Hz频率范围内，以及一个近似于EMS频谱类别的频谱，针对在典型的铰接式倾倒轨道上测得的道路振动数据计算了SEAT值。本文提出了一套座椅选择准则，车辆制造商和供应商，采购人员以及矿山的技术人员可以遵循这些准则。建议对汽车安全座椅行业的座椅系统的使用和运行状况进行其他研究，并进行流行病学调查，以收集有关此主题的其他信息。

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