Abstract
SpaceClaim was used to parameterize the main dimensions of 6.50R16 trailer hub model. The sensitivity diagram of hub parameters was obtained based on Central Composite Design (CCD) algorithm, and the stress area of hub was screened out. Using transient mechanical fatigue analysis was carried out on the wheel under the condition of impact load on the S-N fatigue curve obtained hub fatigue failure area, through Admass STEP function wheel movement geometry curve under impact load is determined, according to the result of wheel hub parameter sensitive figure, fatigue analysis and topology wheel movement curve area under impact load, The shape of the hub model was optimized based on topology optimization, and the new hub model was constructed by SpaceClaim geometric post-processing. After topology optimization, the hub quality is reduced to 16%
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