5[4]MALEK K,YEH H J.Analytical boundary of the workspace for general three degree-of-freedom mechaninsms[J].International Journal of Robotics Research,1997,16(2):198-213.
6[9]WHITEMAN L E,JORGENSEN M,HATHIYARI K.Donmalzhn virtual reality:its usefulness for ergonomic analysis[C].Proceedings of the 2004 Winter Simulation Conference,2003.