Aiming at the structure of a type of radar antenna main tower, the topology optimized weight reduction design and research were carried out by the finite element analysis software ANSYS Workbench. A three-dimensional model of the radar antenna main tower was established, and its structure was topologically optimized with the unit material density as the design variable, the mass retention percentage as the response constraint, and the minimum compliance as the optimization objective. After optimization, the mass of the radar antenna main tower is reduced by about 17.8%, while its structural static strength and modal properties remain the same as before optimization.
Aiming at the lightweight design of a vehicle-mounted radar array structure, the static analysis and modal analysis of the design model were carried out by Ansys to obtain the deformation, stress distribution cloud diagram and the first 6 order natural frequencies and modes of vibration. The calculation results show that the safety factor of each part of the radar array structure is above 2 and the maximum deformation is less than 20mm after the main array plate weight is reduced by 8%. The overall stiffness and strength of the radar array structure are good, which can meet the design requirements.
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