人体-外骨骼系统交互分析以实现人体工学设计,Human Factors: The Journal of the Human Factors and Ergonomics Society

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人体-外骨骼系统交互分析以实现人体工学设计
Human Factors: The Journal of the Human Factors and Ergonomics Society ( IF 2.9 ) Pub Date : 2020-03-24 , DOI: 10.1177/0018720820913789
Yilin Wang ₁ , Jing Qiu ₁ , Hong Cheng ₁ , Xiaojuan Zheng ₁

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目的下肢外骨骼系统被定义为用于脊髓损伤或偏瘫患者的步态训练或行走辅助装置。拐杖、带子和挡板旨在保护受试者免于跌倒。然而，当相互作用力太大时，就会发生皮肤擦伤。在这项研究中，测量了人体与名为 AIDER 的外骨骼系统之间的相互作用力，以确认该设计是否符合人体工程学。背景技术AIDER系统是一种可穿戴的下肢外骨骼。它通过束缚在腰部、大腿、小腿和脚上来固定对象。方法八名健康受试者参加了该研究。通过压力传感器测量腰带、大腿挡板、小腿挡板和拐杖手柄的相互作用力。本研究完成了十次重复。重复一次后，受试者完成定制的舒适度调查问卷。结果虽然手与拐杖手柄之间的最大压力强度峰值有少数达到了疼痛压力阈值(PPT)的最小值，但平均压力强度远小于PPT值。结论结果表明，未来AIDER的机械结构和控制策略必须改进，以更加符合人体工程学。

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Analysis of Human–Exoskeleton System Interaction for Ergonomic Design

OBJECTIVE Lower-limb exoskeleton systems are defined as gait training or walking-assisting devices for spinal cord injury or hemiplegic patients. Crutches, straps, and baffles are designed to protect subjects from falling. However, skin abrasions occur when the interaction forces are too large. In this study, the interaction forces between the human body and an exoskeleton system named the AIDER were measured to confirm whether the design was ergonomic. BACKGROUND The AIDER system is a wearable lower-limb exoskeleton. It secures a subject by binding on the waist, thighs, shanks, and feet. METHOD Eight healthy subjects participated in the study. The interaction forces of the waist strap, thigh baffles, shank baffles, and crutch handles were measured by pressure sensors. Ten repetitions were completed in this study. After one repetition, custom comfort questionnaires were completed by the subjects. RESULTS Although a few of the peak values of the maximum intensities of pressure between the hands and crutch handles reached the minimum value of the pain-pressure threshold (PPT), the average pressure intensities were much smaller than the PPT value. CONCLUSIONS The results indicated that the mechanical structure and control strategy of the AIDER must be improved to be more ergonomic in the future.

更新日期：2020-03-24

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