1.新疆大学 机械工程学院, 新疆 乌鲁木齐 830047
2.北京化工大学 信息科学与技术学院, 北京 100029
梁斌(1996— ),男,河北石家庄人,硕士研究生;研究方向为四足机器人的建模与控制。
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梁斌,袁亮,冉腾等.基于Udwadia-Kalaba理论的四足机器人单腿动力学分析[J].机械传动,2022,46(12):1-6.
Liang Bin,Yuan Liang,Ran Teng,et al.Dynamics Analysis of a Single Leg of Quadruped Robots Based on Udwadia-Kalaba Theory[J].Journal of Mechanical Transmission,2022,46(12):1-6.
梁斌,袁亮,冉腾等.基于Udwadia-Kalaba理论的四足机器人单腿动力学分析[J].机械传动,2022,46(12):1-6. DOI: 10.16578/j.issn.1004.2539.2022.12.001.
Liang Bin,Yuan Liang,Ran Teng,et al.Dynamics Analysis of a Single Leg of Quadruped Robots Based on Udwadia-Kalaba Theory[J].Journal of Mechanical Transmission,2022,46(12):1-6. DOI: 10.16578/j.issn.1004.2539.2022.12.001.
处理多体系统动力学问题的传统方法是拉格朗日方法,但是在求解过程中会引入拉格朗日乘子,增加了求解显式动力学方程的难度。针对四足机器人动力学建模复杂的问题,基于Udwadia-Kalaba(UK)理论研究了四足机器人的单腿模型,建立了一种求解其显式动力学方程的新方法。为了简化获得方程的过程,使用UK方程来处理运动约束。考虑到真实环境的不确定性,利用滑模控制原理设计了一个非线性控制器来跟踪运动轨迹。数值模拟结果证明了动力学方程与控制器的正确性和有效性。
Traditionally, the Lagrangian method is used to deal with the dynamics of multi-body systems. However, in the solution process, Lagrangian multipliers are introduced, which increases the difficulty of solving the explicit dynamics equations. To address the complex problem of modeling the dynamics of a quadruped robot, a single-legged model of quadruped robots based on Udwadia-Kalaba (UK) theory is investigated and a new method for solving its explicit dynamics equations is established. To simplify the process of obtaining the equations, the UK equation is used to deal with the motion constraints. Considering the uncertainty of the realistic environment, a nonlinear controller is designed to track the motion trajectory using the principle of sliding mode control. The results of numerical simulations prove the correctness and effectiveness of the dynamics equations and the controller.
Udwadia-Kalaba理论动力学模型四足机器人滑模控制
Udwadia-Kalaba theoryDynamics modelQuadruped robotSliding mode control
王丹,周德科,杨家琪.四足机器人在直行和转弯下的步态规划研究[J].机械传动,2021,45(9):47-55.
WANG Dan,ZHOU Deke,YANG Jiaqi.Research on gait planning of quadruped robot in straight and turning[J].Journal of Mechanical Transmission,2021,45(9):47-55.
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刘佳,史源平,孙宏强.基于改进Udwadia-Kalaba方程的双机械臂动力学建模与仿真[J].机械传动,2020,44(1):94-98.
LIU Jia,SHI Yuanping,SUN Hongqiang.Dynamics modeling and simulation of dual-arm robot based on the improved Udwadia-Kalaba equation[J].Journal of Mechanical Transmission,2020,44(1):94-98.
任东一.四足机器人扰动抑制及轨迹跟踪控制研究[D].哈尔滨:哈尔滨理工大学,2020:60-61.
REN Dongyi.Research on disturbance rejection and trajectory tracking control of quadruped robot[D].Harbin:Harbin Institute of Technology,2020:60-61.
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LI Yibin,RONG Xuewen,LI Bin.Theory,technology and implementation of hydraulically driven quadrupedal bionic robot[M].Beijing:Science Press,2018:25-38.
李贻斌,李彬,荣学文,等.液压驱动四足仿生机器人的结构设计和步态规划[J].山东大学学报(工学版),2011,41(5):32-36.
LI Yibin,LI Bin,RONG Xuewen,et al.Mechanical design and gait planning of a hydraulically actuated quadruped bionic robot[J].Journal of Shandong University (Engineering Science),2011,41(5):32-36.
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UDWADIA F E,KOGANTI P B.Dynamics and control of a multibody planar pendulum[J].Nonlinear Dynamics,2015,81:845-866.
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