Structural Design and Analysis of Optical Load for Wire-Rope Shock Absorber

To reduce the effect of vibration on camera image quality during flight under heavy optical loads, a new type of centripetal shock absorber was designed. In view of the shortcomings of traditional shock absorbers, a design scheme for the centripetal structure is proposed that can effectively decouple the force. By uniformly distributing the force along the ring on the lifting plate, collisions within the optical load were effectively avoided. To test the vibration-damping effect of the centripetal structure, the optical load was verified using a combination of tensile tests and finite element analysis. The results showed that under a load of 120 kg, the maximum deformation of the entire structure was 3 mm, the maximum stress was 34.3 MPa, and the actual mode frequency was 9.81 Hz, which met the design requirements.