Simulation design and verification of high g value visible light seeker buffer system

DOI:	10.11809/bqzbgcxb2023.10.004
Keywords:	visible light seeker; high g valve; rubber pad; cushioning and vibration reduction; ANSYS workbench
Abstract:	This paper takes the rubber cushion damping structure of visible light seeker as the research object, determines the model formula of rubber material, establishes a theoretical model of rubber cushion damping, and verifies the feasibility by using ANSYS Workbench steady state and transient analysis modules for simulation analysis. The material properties of the rubber pad are linearized, and the strength of the lens is checked under 18 000g working conditions by setting different vibration reduction types. The vibration reduction effect is compared and analyzed, and two vibration reduction pads are determined as the optimal solution for buffering. The method of equivalent impact with a pendulum is used to verify the normal operation of the visible light seeker buffer system under high gvalue conditions. According to the material experiment, appropriate rubber parameters are obtained. When the elastic modulus is taken as 6 MPa and the Poisson’s ratio is taken as 0.47, the factor of safety of the lens can reach about 4 when the two shock absorbers cushion, which verifies the impact of the shock absorbers on the reliability of the optical lens under the condition of high g value, and lays the foundation for subsequent research.
Issue:	Vol. 44 No. 10 (2023)
Published:	2023-10-28
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