Subjects: Engineering and technical science >> Other Disciplines of Engineering and technical science submitted time 2023-11-10 Cooperative journals: 《应用力学学报》
Abstract:
Vibration isolation platform connects the photoelectric tracking-aiming pod to the helicopter body,and is significant to tracking accuracy of the airborne tracking-aiming system.Employing the parallel structure of multiple cage vibration isolators,a new passive vibration isolation platform for the helicopter tracking system is designed.The spatial pose of the isolation platform is described by Euler transformation,and the dynamic model is established based on the Lagrange dynamics method,and the vibration transmission rate under different excitation frequencies is obtained.The correctness of the theoretical model of the vibration isolation platform is verified by using ANSYS dynamics module simulation,the redundant protection capability of the vibration isolation platform under high overload is checked,the isolation effect is investigated by flight test.