Supported by the National Natural Science Foundation of China (Gratn Nos. 50875227, 50575197)
It is well known that the traditional Grübler-Kutzbach formula fails to calculate the mobility of some classical mechanisms or many modern parallel robots,and this situation seriously hampers mechani-cal innovation.T...
Supported by the National Natural Science Foundation of China (Grant No. 50575197)
Based on the mathematic representation of loops of kinematic chains, this paper proposes the " ⊕ " operation of loops and its basic laws and establishes the basic theorem system of the loop algebra of kinematic chain...