Open AccessTopology optimization of wheel drive planetary carrier
Author(s) -
Chen Lv,
Yu Jian Yang,
Dong an Zhan
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1965/1/012127
Subject(s) - topology optimization , reliability (semiconductor) , finite element method , stress (linguistics) , topology (electrical circuits) , static analysis , computer science , structural engineering , engineering , physics , power (physics) , linguistics , philosophy , electrical engineering , quantum mechanics
In order to improve the reliability of the wheel drive system and the service life of the transmission system of the large-tonnage mining dump truck, the finite element model of the planetary carrier is established. According to the stress characteristics, the load, and constraint conditions of the main load, the static analysis and modal analysis are carried out. It is found that the maximum deformation and the maximum equivalent stress are small, and the fifth order modal frequency is high, which can further optimize the structure. Based on the SIMP (solid isotopic material with penalization) interpolation model in the variable density method, the mathematical model of multi-objective function for improving stiffness and reducing flexibility is established by using a compromise programming method. The structure topology of the planetary carrier is optimized to find a more reasonable distribution of materials, and the optimized structure is obtained. Based on the optimization results, the new planet carrier was redesigned, and the dynamic and static performance simulation analysis was performed to ensure the rationality of the improved design of the planet carrier structure. The research shows that the simulation results verify the safety and reliability of the structure, the performance of the optimized planetary carrier can meet the requirements, and the mass is reduced by 14.5%. and a new structure is obtained which is better than the original one.