Multi-disciplinary optimization method for variable-spacing arrangement of riveting points based on crashworthiness

• Main Authors: GUO QINGTAO, WANG JUNSHAN, LIAO XIANGWEI, YANG SHU, QI CHANG, YAN LEI, YU CHEN
• Format: Patent
• Language: Chinese; English
• Published: 17.09.2021
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention provides a multi-disciplinary optimization method for variable-spacing arrangement of riveting points based on crashworthiness, and belongs to the technical field of structural design of carrying equipment. Based on the definition of a riveting point variable spacing arrangement optimization problem, a parameterized finite element model with a series of riveting point spacings as design variables is established, training samples are collected through a mixed material test design method, verification samples are selected through a random sampling method, a proxy model is selected through a leave-one-out cross validation strategy. After verification of the precision of the proxy model is completed, an optimization scheme is obtained and verified by adopting a heuristic multi-objective optimization algorithm, and then optimization design of variable-spacing arrangement of the riveting points is completed. According to the technical scheme, the problem that a riveting point optimization method in th