Aim An active control technique using piezoelctric sensor and actuator is used to solve the problem of machine gun vibration in shooting. Methods The principle and method of smart structure are provided

some fundamental problem in the vibration control of machine gun structures using piezoelectric devices are studied. Results The mechanic electric coupling dynamic model of the machine gun structures with integrated piezoelectric sensors/actuators are established

control equations and simulation results are presented. Conclusion Smart structure active control technique can reduce efficiently the vibration response of machine gun structure and improve the precision in shooting.