发动机流固耦合传热自动优化分析  

Auto-Optimization For Engine Fluid-Structure Coupling Thermal Analysis

作　　者：陶丽芳[1] 张德定[1] 昂亮[1] 徐亚飞[1] 张镇[1] 刘小生[1] 

机构地区：[1]奇瑞汽车股份有限公司发动机工程研究院,芜湖241009

出　　处：《内燃机工程》2016年第5期183-187,共5页Chinese Internal Combustion Engine Engineering

基　　金：国家科技支撑计划项目(2011BAG06B00)

摘　　要：应用流体软件对汽油机进行稳态流固耦合传热分析,仿真得到的缸体缸间温度与试验测量值吻合较好。在优化软件的平台下集成Java自动化流程、网格变形进行试验设计,基于试验设计的结果进行优化分析,优化目标是控制缸体缸盖结构温度小于限值前提下使水套容积最小化以便提高暖机温升。将优化分析结果反馈给设计修改和计算流体力学(computational fluid dynamic)验算,结果一致性较好。快速成型件验证暖机温升时间加快15%。An gasoline engine structure thermal analysis was simulated in a commercial thermodynamic software coupling with the coolant flowing analysis of water jacket. The structure temperature between cylinders in cylinder block resulted from simulation was close to the test temperature. DOE analysis was calculated in an optimization software integrated CFD step by step commands and morphed mesh models. Optimized model was gotten to shorten the warm up time by minimize the volume of water jacket for cylinder block within the available structure temperature. The simulation results for modified design model based on the optimized one were validated. Warm up time was shorten 15% through the test for a rapid prototyping engine.

关 键 词：内燃机 水套 计算流体力学 流固耦合 自动优化 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]