NING Feilong,LI Chengdong,LI Heng,et al. Kinematics and dynamics analysis of lower limb rehabilitation exoskeleton robots[J]. Journal of Mechanical Transmission,2025,49(9):93-101.
Aiming at the problem of insufficient adaptability of existing lower limb rehabilitation exoskeleton robots
a multi-part dimension adjustable exoskeleton robot was designed. Its kinematic and dynamic characteristics were explored to provide a basis for structural optimization and motor selection.
Methods
2
Based on the structural characteristics of the human lower limbs
a kinematic model was established using the D-H parameter method
and a dynamic model was constructed via the Lagrange’s equation. Theoretical calculations and simulation verification were conducted by combining Matlab and Adams software
and no-load and loaded simulation analyses were carried out.
Results
2
The movements of the left and right sides of the robot show periodic changes with a half-gait cycle difference
which is consistent with the law of human walking. During the swing phase
the driving torque of the hip joint does not exceed 60 N·m
and that of the knee joint does not exceed 40 N·m. The movement is stable
meeting the design requirements
which provides reference for the development of the control system and the development of physical prototypes.
ZHANG Chaohua . 2023 World Stroke Day:focus on prevention and prevention in daily life [EB/OL]. ( 2023-10-28 )[ 2024-06-22 ]. http://www.news.cn/health/2023-10/28/c_1129945490.html http://www.news.cn/health/2023-10/28/c_1129945490.html .
MORONE G , PAOLUCCI S , CHERUBINI A , et al . Robot-assisted gait training for stroke patients: current state of the art and perspectives of robotics [J]. Neuropsychiatric Disease and Treatment , 2017 , 13 : 1303 - 1311 .
ZEILIG G , WEINGARDEN H , ZWECKER M , et al . Safety and tolerance of the ReWalk TM exoskeleton suit for ambulation by people with complete spinal cord injury:a pilot study [J]. The Journal of Spinal Cord Medicine , 2012 , 35 ( 2 ): 96 - 101 .
SUZUKI K , MITO G , KAWAMOTO H , et al . Intention-based walking support for paraplegia patients with Robot Suit HAL [J]. Advanced Robotics , 2007 , 21 ( 12 ): 1441 - 1469 .
PRANSKY J . The Pransky interview:Russ Angold, Co-Founder and President of Ekso TM Labs [J]. Industrial Robot , 2014 , 41 ( 4 ): 329 - 334 .
JUSZCZAK M , GALLO E , BUSHNIK T . Examining the effects of a powered exoskeleton on quality of life and secondary impairments in people living with spinal cord injury [J]. Topics in Spinal Cord Injury Rehabilitation , 2018 , 24 ( 4 ): 336 - 342 .
QIU Jing , CHENG Hong , GUO Haoxing . Ergonomic considerations in design of wearable exoskeleton to aid walking [J]. Computer Science , 2015 , 42 ( 10 ): 31 - 34 .
CHEN Q M , CHENG H , YUE C F , et al . Dynamic balance gait for walking assistance exoskeleton [J]. Applied Bionics and Biomechanics , 2018 , 2018 ( 1 ): 7847014 .
National Technical Committee for Standardization of Ergonomics . Human dimensions of Chinese adults : GB/T 10000—2023 [S]. Beijing : Standards Press of China , 2023 : 3 - 15 .
WANG Yan , LI Jian . Structural design and dynamics analysis of a lower limb rehabilitation training mechanism [J]. Journal of Mechanical Transmission , 2019 , 43 ( 11 ): 134 - 138 .
ZHENG Tianjiao . Development of a compact walking assistance exoskeleton and research on gait generation method [D]. Harbin : Harbin Institute of Technology , 2020 : 25 - 26 .
WINTER D A . Biomechanics and motor control of human movement [M]. Waterloo : University of Waterloo Press , 1987 : 48 - 80 .
HUANG Xiaolin . Human kinematics [M]. 2nd ed . Beijing : People’s Medical Publishing House , 2013 : 192 - 197 .
DENAVIT J , HARTENBERG R S . A kinematic notation for lower-pair mechanisms based on matrices [J]. Journal of Applied Mechanics , 1955 , 22 ( 2 ): 215 - 221 .
WEI Xiao , BI Wenlong , LI Yanan , et al . Design and simulation of a multi degrees of freedom adjustable exoskeleton for lower limb rehabilitation [J]. Journal of Mechanical Transmission , 2024 , 48 ( 1 ): 61 - 66 .
MA Xiaojun , LIU Yuyang , JIA Qiusheng , et al . Simulation and analysis of dynamics of lower limb exoskeleton rehabilitation robots [J]. Journal of Mechanical Transmission , 2022 , 46 ( 12 ): 106 - 111 .
DU Hailong , HU Ningning . Kinematics and dynamics analysis of lower limb robot based on human motion data [J]. Journal of Mechanical Transmission , 2022 , 46 ( 3 ): 128 - 134 .
National Technical Committee for Standardization of Ergonomics . Inertial parameters of adult human body : GB/T 17245—2004 [S]. Beijing : Standards Press of China , 2004 : 3 - 7 .