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引用次数: 0
摘要
Gough-Stewart机器人是一种具有6个自由度、6个作动机构、固定基座和移动平台的机器人。首先推导出雅可比矩阵,在雅可比矩阵行列式为零时检测出机械臂工作空间中的奇异点,然后用拉格朗日法从动力学分析中推导出运动方程,用雅可比矩阵验证奇异点,在此奇异点处力迅速增加。最后,Simulink中的设计模块包括雅可比矩阵和运动方程,用于检测当前输入参数(X, Y, Z, α, β, γ)在任何时间的奇异性,其中雅可比矩阵的行列式在最大力下等于零。
Design Blocks in Simulink to Detection Singularity in the Workspace of Gough-Stewart Robot Manipulator
This work deals with Gough-Stewart robot manipulator, which has six degrees of freedom, six actuators, fixed base, and moving platforms. Here, the Jacobian matrix derived to detect the singular point in the workspace for manipulator at determinant of Jacobian matrix equal to zero, then derived the equation of motion from the dynamic analysis by Lagrange method to verify the singular points with Jacobian where the forces increase rapidly at this point. Finally, design blocks in Simulink include the Jacobian matrix and the equations of motion to detection the singularities at any time for current input parameters (X, Y, Z, α, β, γ), where the determinant of the Jacobian equal to zero at maximum forces.