摘要
以均匀化方法为理论基础,对铰接式自卸车的铰接体进行多载荷工况下的拓扑优化研究.在确定各工况权重时,综合考虑权重本身的不确定性和专家可信度,利用盲数理论对专家的意见进行了不确定性的量化表示进而求出权重,并把权重值应用到多工况拓扑优化中,最后对铰接体的结构进行了可靠性分析,所得结果证明基于盲数理论取得的权重的合理性.
Topology optimization based on a homogenization method was applied to the articulated body of an articulated dump truck under multiple loading cases. The uncertainty of weights and the reliability of experts were taken into consideration when the weights were determined under multiple loading cases. An uncertain quantified expression of the experts＇ advices was set up by means of the blind number theory, and the weights under every loading case were got and applied to topology optimization under multiple loading cases. Finally, the reliability of the articulated body was analyzed. The rationality of the way to get the weights based on the blind number theory was also proved.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2011年第3期346-352,共7页
Journal of University of Science and Technology Beijing
基金
"十一五"国家科技支撑计划资助项目(No.2008BAB32B03)
关键词
自卸车
铰接体
拓扑优化
不确定性分析
可靠性
dump trucks
articulated bodies
topology optimization
uncertainty analysis
reliability
