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工程设计学报
Chinese Journal of Engineering Design  2014, Vol. 21 Issue (6): 583-588    DOI: 10.3785/j.issn. 1006-754X.2014.06.014
    
Design and motion analysis of nursing bed lower limbs mechanism based on modularity
LIU Fang-yuan， LvChuan-yi， HE Lei
School of Mechanical Engineering， Shandong University of Technology， Zibo 255049， China
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Abstract  In order to reduce the development cycle and customized design of nursing bed， modular partition and function analysis was given out based on modular design. Detailed exposition of the lower limbs mechanism design was carried out. The three passive motions of the lower limbs mechanism were analyzed. A design scheme of lower limbs mechanism was putted forward and the motion mathematical model was established. Theoretical analyses of lower limbs three motion state were outputted by MATLAB. Compared with the simulation of ADAMS， the reasonability of lower limbs mechanism was made sure. The lower limbs mechanism which fully considerate the lower limbs exercise and daily needs have a stable performance and a reasonable structure.

Key words： modularization      nursing bed      mechanism design      kinematic analysis     
Received: 03 April 2014      Published: 28 December 2014
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Cite this article:

LIU Fang-yuan， LvChuan-yi， HE Lei. Design and motion analysis of nursing bed lower limbs mechanism based on modularity. Chinese Journal of Engineering Design, 2014, 21(6): 583-588.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn. 1006-754X.2014.06.014     OR     https://www.zjujournals.com/gcsjxb/Y2014/V21/I6/583


模块化护理床的下肢机构设计与运动分析

为了降低护理床的开发周期、实现护理床的订制性设计，基于模块化设计方法，对护理床的机械结构进行了模块划分与功能分析.对下肢运动模块的设计进行了详细阐述，分析了下肢的3种被动运动.提出了护理床下肢机构设计方案，建立了相应的运动数学模型.利用 MATLAB对下肢机构的3种运动状态进行了理论分析，并与ADAMS 仿真结果进行比较，验证了下肢机构设计的合理性.该下肢机构运动性能稳定，结构合理，充分考虑了患者的下肢辅助锻炼和日常生活需求.

关键词： 模块化,  护理床,  机构设计,  运动学分析 
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