2Jin Q, Yang T L. Synthesis and analysis of a group of 3-degree-of-freedom partially decoupled parallel manipulators[J ]. Journal of Mechanical Design, 2004, 126(2): 301-306.
3Gogu G. Structural synthesis of fully-isotropic translational parallel robots via theory of linear transformations[J ]. European J. Mechanics A/Solids, 2004, 23(6) : 1 021- 1 039.
4Kong X, Gosselin C M. Type synthesis of 3-DOF translational parallel manipulators based on screw theory[J]. Journal of Mechanical Design, 2004, 126(1) :83--92.
5Merlet J P. Singularity analysis of parallel manipulators and grassman geometry [J ]. International Journal of Robotics Research, 1989, 8(5): 45-56.
6Joshi S A, Tsai L-W. Jacobian analysis of limited-DOF parallel manipulators [J ]. ASME Journal of Mechanical Design, 2002, 124(2): 254--258.
7Gosselin C M, Angeles J. Singularity analysis of closed-loop kinematic chains [J ]. IEEE Transactions on Robotics and Automation, 1990, 6(3): 281--290.