四连杆膝关节假肢的动力学建模与分析$^{\bf 1)}$
吕阳*,方虹斌**††,徐鉴**††,马建敏*,王启宁***,张晓旭**††2)()
DYNAMIC MODELING AND ANALYSIS OF THE LOWER LIMB PROSTHESIS WITH FOUR-BAR LINKAGE PROSTHETIC KNEE$^{\bf 1)}$
Lü Yang*,Fang Hongbin**††,Xu Jian**††,Ma Jianmin*,Wang Qining***,Zhang Xiaoxu**††2)()

图4. 膝关节几何锁死时接触力示意图

Fig.4. The contact force when the knee is locked geometrically