首页|汽车前舱冷却流场可靠性优化模型设计与仿真

汽车前舱冷却流场可靠性优化模型设计与仿真

扫码查看
针对汽车前舱冷却系统设计的复杂性和设计变量的不确定性,将Chebyshev不确定分析方法引入前舱冷却流场优化设计流程,建立适用于汽车前舱冷却流场的区间可靠性优化设计模型.以某轿车前舱冷却系统为例,引入Chebyshev函数用于结构优化设计.选取冷凝器和散热器的平均流速和气流流量为目标阈值,使用k-ε湍流模型进行有限元分析,结合Chebyshev可靠性分析迭代,对前舱冷却模块进行结构优化,提升前舱冷却流场性能.试验结果表明,通过增大前保吸能泡沫截面和优化风扇扇叶与支架间的间隙可在一定程度上改进前舱冷却流场性能.
Model Design and Simulation for Reliability Optimization of Automotive Front Cabin Cooling Flow Field
Aiming at the complexity and uncertainty of design variables of automotive front cabin cooling sys-tem,Chebyshev uncertainty analysis was applied to optimization design of front cabin cooling flow field to establish a model for reliability optimization for automotive front cabin cooling flow field range.Taking the front cabin cooling system of a car as an example,Chebyshev function was used to optimize the structure design.Selecting the average flow velocity and airflow volume of the cooler and radiator as the target thresholds,this article adopted k-ε turbu-lence model reliability for finite element analysis and analyzed iteration combined with Chebyshev reliability,to op-timize the structure of the front cabin cooling module and improve the performance of the front cabin cooling flow field.The experimental results show that the performance of front cabin cooling flow field can be improved to some extent by increasing the front energy retaining foam section and optimizing the gap between the fan blade and the bracket.

cooling flow fieldchebyshev reliabilitystructure optimization

张丽、王锋、柳砚

展开 >

安徽机电职业技术学院 机械工程学院,安徽 芜湖 241002

奇瑞汽车股份有限公司 制造工程院,安徽 芜湖 241009

冷却流场 Chebyshev可靠性 结构优化

安徽省高等学校自然科学研究重点项目安徽省高等学校自然科学研究重点项目

2022AH0523692022AH052351

2024

辽东学院学报(自然科学版)
辽东学院

辽东学院学报(自然科学版)

影响因子:0.834
ISSN:1673-4939
年,卷(期):2024.31(1)