Visual axis vibration damping stability frame design based on flexible structure

With the continuous improvement of the optoelectronic platform's requirements on the stability accuracy of the visual shaft, the traditional two-axis and four-frame stable structure no longer meets the need of the platform. Due to the limitations of rotating shafting, driving motor, vibration damping mechanism and its own structural strength and other factors, the larger the optical load, the more the rotating shafting, and the larger the volume and weight of the universal frame. Therefore, a new type of visual axis vibration damping stability frame design by placing 8 identical flexible vibration damping connection modes symmetrically on both sides of the center of mass of the inner ring frame of the photoelectric platform was proposed. The modal simulation and static analysis of the framework model were carried out by Ansys simulation software, and the stability performance of the design framework was evaluated effectively by NX and ADAMS co-simulation. Finally, the dynamic performance of the rigid connection and the flexible vibration damping connection frame was tested by the sweep frequency test system. The results show that the frame can provide vibration isolation and static support for the optical platform at low and medium frequency, and thus improving the stability and anti-interference ability of the optical platform.