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A user-friendly three-dimensional kinetic model for analyzing manual lifting tasks

机译:用户友好的三维动力学模型,用于分析手动提升任务

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Prevention of musculoskeletal disorders resulting from manual material handling tasks has been among the foremost concerns of industrial ergonomics researchers Kromodihardjo and Mital (1986, 1987) contributed significantly to the research in thisarea by developing a 3-D kinetic model for the analysis of manual lifting. Kromodihardjo and Mital's model (K-M model), and other kinetic models, rely on explicit kinematic information of the tasks being performed. Thus, time variations of displacements,velocities and accelerations (both linear and angular) for all body joints have to be known beforehand in order to perform an analysis. This, in turn, requires experiments to be conducted with individual subjects each time an analysis is needed. This is a tedious procedure and deters the generic use of such models. The present work was, therefore, initiated with the objective of encapsulating the K-M model into a form which could be readily used mid applied to industrial situations. A comparison of theresults obtained with the simplified model with results from K-M model shows an excellent match.
机译:预防由人工操作材料引起的肌肉骨骼疾病一直是工业人体工程学研究人员最关注的问题之一,研究人员Kromodihardjo和Mital(1986,1987)通过开发3-D动力学模型来分析人工举升对这一领域的研究做出了重要贡献。 Kromodihardjo和Mital模型(K-M模型)以及其他动力学模型依赖于所执行任务的明确运动学信息。因此,必须预先知道所有身体关节的位移,速度和加速度(线性和角度)的时间变化,以便进行分析。反过来,这要求每次需要进行分析时都要对单个对象进行实验。这是一个繁琐的过程,并阻止了此类模型的通用使用。因此,目前的工作是为了将K-M模型封装成一种易于在工业场合中使用的形式而发起的。将简化模型获得的结果与K-M模型的结果进行比较,可以得出很好的匹配。

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