转子式机油泵多学科优化设计  

Multidisciplinary Optimization Design on Rotor Oil Pump

作　　者：曾庆生[1] 杨毅[1] 王湘江[1] 

机构地区：[1]南华大学机械工程学院,衡阳421001

出　　处：《内燃机工程》2009年第5期73-77,共5页Chinese Internal Combustion Engine Engineering

基　　金：湖南省自然科学基金项目(06JJ50103)

摘　　要：为了确保发动机转子式机油泵整体性能提高,以转子式机油泵泵油性能、质量以及抗冲击性能为目标函数建立了多学科设计优化模型,并充分考虑了各学科之间的耦合效应,采用自适应混沌优化算法对多学科设计优化模型进行了求解。多学科设计优化结果表明:转子式机油泵供油量增加了2.43%,质量减少了10.0%,位移变形减少了16.3%,整体性能提高了8.2%。优化前后转子式机油泵转子齿面交变有效应力对比试验结果表明:优化后机油泵齿顶所受最大应力降低至150 MPa左右,小于屈服极限。In order to improve the total performance of the rotor oil pump for engines, a MDO （multidisciplinary optimization） model was established based on objective function, such as pumping ability, mass and shock resistance performance of rotor oil pump, and with considering the coupled effect of each subject. A rotor oil pump was designed by using the MDO model based on self-adaptive chaotic optimization algorithm. The result shows that the pumping ability is improved by 2. 43 %, the pump mass is reduced by 10.0%, the shock resistance performance is improved by 16. 3 %, the total performance is improved by 8.2 %. The experimental results about effective alternated stress of tooth surface of the rotor oil pump reveal that the maximal stress of tooth surface of the rotor oil pump is reduced by 150 MPa and it is less than the yielding limit after multidisciplinary optimization design.

关 键 词：内燃机 转子式机油泵 多学科优化设计 自适应混沌优化算法 

分 类 号：TK414[动力工程及工程热物理—动力机械及工程]