基于CCD算法拓扑优化的轮毂轻量化设计  

Light weight Design of Wheel Hub Based on CCD Algorithm Topology Optimization

作　　者：张同帅 陈秀生[1] 张良政 宋久苓 Zhang Tongshuai;Chen Xiusheng;Zhang Liangzheng

机构地区：[1]济南大学机械工程学院,山东济南250022 [2]山东金盛车桥制造有限公司

出　　处：《工程机械》2022年第12期83-89,I0019,共8页Construction Machinery and Equipment

摘　　要：采用SpaceClaim对装配12R22.5轮胎的挂车轮毂模型主要尺寸进行参数化处理,基于Central Composite Design(CCD)算法得出轮毂参数敏感性图,得出轮毂的大致可优化区域;利用瞬态力学与疲劳寿命对冲击载荷工况下的轮毂进行瞬态力学分析和疲劳分析,根据所得应力-疲劳曲线确定轮毂疲劳失效区域,再通过Adams STEP函数确定轮毂在冲击载荷下的受力变化几何曲线,最终确定轮毂拓扑优化区域。基于拓扑优化对轮毂模型进行形状优化,经过Space Claim几何后处理构建新轮毂模型。在静态、匀速运动、冲击载荷3种工况下,对新轮毂进行静力校验,拓扑优化后的新轮毂质量降低了16%。SpaceClaim is used to parameterize the main dimensions of the trailer hub fitted with model 12R22.5 tyres, and the sensitivity diagram of the hub parameters is derived based on the Central Composite Design(CCD) algorithm to obtain the approximate optimizable area of the hub.Transient mechanics and fatigue life are used to carry out transient mechanical analysis and fatigue analysis of the hub under impact load conditions, the fatigue failure area of the hub is determined according to the stress-fatigue curve, the geometric curve of the stress change of the hub under impact loads is determined through Adams STEP function,and finally the topology optimization area of the hub is determined. The shape of the hub model is optimized based on topology optimization, and a new hub model is constructed through SpaceClaim geometric post-processing. Under three working conditions of static, uniform motion and impact load, the new hub is statically tested, and the mass of the new hub after topology optimization is reduced by 16%.

关 键 词：挂车 轮毂 Adams运动仿真 拓扑优化 SpaceClaim几何后处理 

分 类 号：U463.343[机械工程—车辆工程]