A NEW CRITERION FOR OCCURRENCE OF STICK-SLIP MOTION IN DRIVE MECHANISM

【摘要】 <正> This paper,using Karnopp’s model of friction force and phase planemethod,studies the stick-slip motion of the flexible drive mechanism.It is explainedthat a sudden drop of friction force is the essential source of stick-slip motion when thesliding is impending.A new criterion for occurrence of stick-slip motion is established.The stick-slip region and the stable region in a parameter plane are separated bya critical parameter curve.Moreover,for the stick-slip motion of the flexible drivemechanism without viscous damping,a parameter expression is obtained.The resultsmay be used in design of the flexible drive mechanism.更多还原

【Abstract】 This paper,using Karnopp’s model of friction force and phase plane method,studies the stick-slip motion of the flexible drive mechanism.It is explained that a sudden drop of friction force is the essential source of stick-slip motion when the sliding is impending.A new criterion for occurrence of stick-slip motion is established. The stick-slip region and the stable region in a parameter plane are separated by a critical parameter curve.Moreover,for the stick-slip motion of the flexible drive mechanism without viscous damping,a parameter expression is obtained.The results may be used in design of the flexible drive mechanism.更多还原