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Difficulties in applying numerical simulations to an evaluation of occupational hazards caused by electromagnetic fields

机译：数值模拟在评估电磁场引起的职业危害方面的困难

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摘要

Due to the various physical mechanisms of interaction between a worker's body and the electromagnetic field at various frequencies, the principles of numerical simulations have been discussed for three areas of worker exposure: to low frequency magnetic field, to low and intermediate frequency electric field and to radiofrequency electromagnetic field. This paper presents the identified difficulties in applying numerical simulations to evaluate physical estimators of direct and indirect effects of exposure to electromagnetic fields at various frequencies. Exposure of workers operating a plastic sealer have been taken as an example scenario of electromagnetic field exposure at the workplace for discussion of those difficulties in applying numerical simulations. The following difficulties in reliable numerical simulations of workers’ exposure to the electromagnetic field have been considered: workers’ body models (posture, dimensions, shape and grounding conditions), working environment models (objects most influencing electromagnetic field distribution) and an analysis of parameters for which exposure limitations are specified in international guidelines and standards.
机译：由于工人身体和电磁场在不同频率下相互作用的各种物理机制，因此针对工人暴露于以下三个领域的数值模拟原理进行了讨论：低频磁场，低频和中频电场以及射频电磁场。本文介绍了在应用数值模拟来评估各种频率下暴露于电磁场的直接和间接影响的物理估计量时发现的困难。已将操作塑料封口机的工人的暴露情况作为工作场所电磁场暴露的示例场景，以讨论应用数值模拟时遇到的困难。在对工人暴露于电磁场进行可靠的数值模拟时，考虑了以下困难：工人的身体模型（姿势，尺寸，形状和接地条件），工作环境模型（对电磁场分布影响最大的对象）以及参数分析在国际准则和标准中规定了暴露限制。

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