RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)

In order to improve the stability of diagonal trot gait for quadruped robot, a foot end trajectory planning method based on Bezier curve is proposed. Aiming at the diagonal trot gait of quadruped robot, the kinematics model of parallel legs of quadruped robot is established, the forward and inverse...

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Main Authors: XU ChaoBin, LI LinZhi, DU JunLong, LI MingZhi
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2023-01-01
Series:Jixie qiangdu
Subjects:
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.03.028
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author XU ChaoBin
LI LinZhi
DU JunLong
LI MingZhi
author_facet XU ChaoBin
LI LinZhi
DU JunLong
LI MingZhi
author_sort XU ChaoBin
collection DOAJ
description In order to improve the stability of diagonal trot gait for quadruped robot, a foot end trajectory planning method based on Bezier curve is proposed. Aiming at the diagonal trot gait of quadruped robot, the kinematics model of parallel legs of quadruped robot is established, the forward and inverse kinematics are solved by geometric method, and the foot end trajectories of swing phase and support phase are optimized based on zero impact principle and PD controller. The comparative test is carried out by using Webots simulation platform and experimental prototype. The results show that when the proportional coefficient in X direction is 20, the differential coefficient is 0.75 s, the proportional coefficient in Y direction is 20 and the differential coefficient is 0.5 s, the foot end trajectory of quadruped robot is smooth without sudden change of speed and acceleration, and the gait of diagonal trot is more stable.
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spelling doaj.art-7a58bef9210b4bc4ab904666e53278072023-08-01T07:55:46ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692023-01-0170871440373583RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)XU ChaoBinLI LinZhiDU JunLongLI MingZhiIn order to improve the stability of diagonal trot gait for quadruped robot, a foot end trajectory planning method based on Bezier curve is proposed. Aiming at the diagonal trot gait of quadruped robot, the kinematics model of parallel legs of quadruped robot is established, the forward and inverse kinematics are solved by geometric method, and the foot end trajectories of swing phase and support phase are optimized based on zero impact principle and PD controller. The comparative test is carried out by using Webots simulation platform and experimental prototype. The results show that when the proportional coefficient in X direction is 20, the differential coefficient is 0.75 s, the proportional coefficient in Y direction is 20 and the differential coefficient is 0.5 s, the foot end trajectory of quadruped robot is smooth without sudden change of speed and acceleration, and the gait of diagonal trot is more stable.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.03.028Quadruped robot;Diagonal trot;Webots;Bezier curve;Foot trajectory
spellingShingle XU ChaoBin
LI LinZhi
DU JunLong
LI MingZhi
RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)
Jixie qiangdu
Quadruped robot;Diagonal trot;Webots;Bezier curve;Foot trajectory
title RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)
title_full RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)
title_fullStr RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)
title_full_unstemmed RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)
title_short RESEARCH ON TRAJECTORY PLANNING OF QUADRUPED ROBOT BASED ON BEZIER CURVE (MT)
title_sort research on trajectory planning of quadruped robot based on bezier curve mt
topic Quadruped robot;Diagonal trot;Webots;Bezier curve;Foot trajectory
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.03.028
work_keys_str_mv AT xuchaobin researchontrajectoryplanningofquadrupedrobotbasedonbeziercurvemt
AT lilinzhi researchontrajectoryplanningofquadrupedrobotbasedonbeziercurvemt
AT dujunlong researchontrajectoryplanningofquadrupedrobotbasedonbeziercurvemt
AT limingzhi researchontrajectoryplanningofquadrupedrobotbasedonbeziercurvemt