Stiffness analysis and structure optimization of a wheeled self propelled anti aircraft artillery vehicle

DOI:	10.11809/bqzbgcxb2023.03.006
Keywords:	wheeled self propelled anti aircraft artillery; chassis; vehicle stiffness; finite element; optimization design
Abstract:	A chassis is the support platform of the turret of a self propelled anti aircraft artillery vehicle, and the rigidity of its body is related to the turret mounting ring, which has an important impact on the firing accuracy of the artillery.In order to reduce the influence of insufficient rigidity of the chassis on the firing accuracy of the artillery, this paper establishes a finite element model of the initial design of the body according to the chassis mechanics model of a wheeled self propelled anti aircraft artillery vehicle, carries out the static calculation under different firing conditions of the artillery, and figures out the weak links and deformation characteristics of the chassis under different firing conditions. According to these weak links and deformation characteristics, the original scheme is then optimized, and finally the design scheme satisfying the requirements of combat is obtained.Compared with the original scheme, the weight of the chassis in the new scheme slightly increases, but its stiffness greatly improves, and the design index requirements are achieved, which provides certain reference for stiffness analysis and optimization design of the chassis of a self propelled anti aircraft artillery vehicle.
Published:	2023-03-28
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