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首页> 外文期刊>Journal of Advanced Manufacturing Technology >VIBRATION ANALYSIS OF INDIAN HUMAN SUBJECT IN SITTING POSTURE
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VIBRATION ANALYSIS OF INDIAN HUMAN SUBJECT IN SITTING POSTURE

机译：印度人体在坐姿中的振动分析

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The human body shows a non-linear and dynamic behavior under different vibration conditions that occur while travelling, walking and performing other activities.Thus, it becomes necessary to study effects on the human body that lead to different types of body pain and discomfort. In this study, an attempt has been made to find out natural frequencies and mode shapes of an Indian male subject in sitting posture without backrest using FEM approach. The results will be helpful in the designing of products for human use like automobile seats and machine parts to minimize the effect of vibrations on human body. A 3-D CAD model of human subject was generated using physical dimensions and anthropometric data available in the existing literature. A CAD model of the human body was segmented into a simple model using segments of ellipsoidal shape. As observed from this study, at 2.8 Hz maximum deformation of 56 mm occurred at head segment and with the increase in natural frequency it started diverting to lower arms. At 18.7 Hz, maximum deformation (124 mm) occurred at lower arms of human subject.Also, no deformation occurred at lower body segments below hip joint.The results obtained are in validation with the existing literature.
机译：在旅行，步行和进行其他活动时，人体会在不同的振动条件下表现出非线性和动态行为，因此有必要研究导致不同类型的人体疼痛和不适的对人体的影响。在这项研究中，已尝试使用FEM方法找出坐姿无靠背的印度男性受试者的自然频率和众数形状。该结果将有助于设计用于人类的产品，例如汽车座椅和机器零件，以最大程度地减少振动对人体的影响。使用现有文献中可用的物理尺寸和人体测量数据生成了人类受试者的3-D CAD模型。使用椭圆形的部分将人体的CAD模型分割为简单模型。从这项研究中观察到，在2.8 Hz时，头部发生最大56 mm的变形，并且随着自然频率的增加，它开始转向下臂。在18.7 Hz时，人类受试者的下臂出现最大变形（124 mm），并且在髋关节下方的下半身段也没有变形，所得结果与现有文献相符。

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