Dynamics analysis of cam drive mechanism with clearance

Kinematic pairs clearance of cam mechanism has an important effect to system dynamics response of Gatling gun. In order to study effecting law of driving clearance to Gatling gun´s system resistance moment and core´s force, based on dynamics theory of mechanism system with clearance, and through analyzing motion and force of cam drive mechanism, dynamics coupled equation of cam mechanism with clearance is built by Dubowsky´s impact model. It discussed the effect of cam drive clearance to Gatling gun´s dynamic characteristics using ADAMS emulation analysis. The calculating result indicates that to reasonably control cam drive clearance is the important factor to reduce Gatling gun´s system power loss and system resisting torque.