“…Therefore, recursive formulation is used to compute the estimateM of the explicit mass matrix [3,5]. Defining joint kinematics with r i ij = f r (q ij , t) and A ij = A ij (q ij , t), where r ij is the relative position vector between two corresponding reference coordinate systems in a rigid body chain depending on a function of generalized coordinates q ij and A ij is the orientation between the two corresponding reference coordinate systems, respectively, the translational and rotational accelerationR j andω j of a body j can be obtained recursively by…”