Lightweight design of artillery cradle based on dimension-topology coupling effect
The artillery cradle is a primary load-bearing component of the firepower system,and its weight contributes significantly.Lightweight design plays an important role in weight reduction and improving the artillery's maneuverability.However,the present lightweight design technique failed to consider the interdependency between dimensional parameters and topological structure,hindering the artillery cradle from achieving the ideal stiffness to mass ratio.A lightweight design method grounded in dimension-topology coupling effect was introduced to tackle the aforementioned issues.By means of orthogonal design and topology optimization,various topology structures of cradles with distinct dimensions were generated.Additionally,response surface method was implemented to devise agent models that embody dimensional parameters,topology structure,as well as stiffness and mass mapping.Global optimization was performed using intelligent algorithm to achieve concurrent lightweight design of dimensional parameters and topology structure.A particular type of artillery cradle was exampled to conduct analysis.The findings shown that under the same stiffness conditions,the proposed design method reduced the weight by 10.8%and the maximum equivalent stress by 35.8%compared to the original method.
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