摘要
为解决汽车发动机缸体孔加工中圆度偏差过大以及能耗过高的问题,开发了一种综合圆度与能耗的汽车发动机缸孔镗削加工优化方法。首先,利用有限元和改进的克里金模型建立加工变形预测模型,综合考虑加工变形和机床运动误差建立圆度模型;其次,系统分析发动机缸孔镗削加工过程的能耗特性,建立加工能耗模型;再次,综合考虑最大圆度和最小加工能耗,建立缸孔镗削加工集成优化模型,并利用多目标优化算法进行求解,确定了综合加工能耗与圆度最优的工艺参数组合。最后,基于重庆某发动机厂缸孔镗削实际案例对该方法展开试验,验证所提方法的有效性。
To address the issues of excessive roundness deviation and high energy consumption in the machining of automobile engine cylinder hole,an integrated optimization method for boring machining of automobile engine cylinder hole considering roundness and energy consumption is developed.A processing deformation prediction model is first established using the finite element method and an improved Kriging model.A cylinder hole roundness model is established by comprehensively considering processing deformation and machine tool motion errors.The energy consumption characteristics of the engine cylinder hole boring process are systematically analyzed,and a processing energy consumption model is established.The integrated optimization model for cylinder hole boring is then established by comprehensively considering maximum roundness and minimum processing energy consumption.A multi-objective optimization algorithm is used to solve the problem,and the process parameter combination that optimizes both comprehensive processing energy consumption and roundness is determined.Finally,based on the actual case of cylinder hole boring in an engine factory in Chongqing,the proposed method was tested to verify its effectiveness.
作者
姜楠
李聪波
凌青海
李博
吴少卿
李承远
JIANG Nan;LI Congbo;LING Qinghai;LI Bo;WU Shaoqing;LI Chengyuan(China Construction Machinery Society,Beijing 100084,CHN;State Key Laboratory of Mechanical Transmission for Advanced Equipment,Chongqing University,Chongqing 400044,CHN;SERES Auto Co.,Ltd.,Chongqing 400033,CHN)
出处
《制造技术与机床》
北大核心
2025年第12期41-49,共9页
Manufacturing Technology & Machine Tool
基金
高端装备机械传动全国重点实验室自主研究课题重点项目(SKLMT-ZZKT-2024Z06)。
关键词
汽车发动机缸孔
圆度
加工能耗
工艺参数
镗削加工
automobile engine cylinder hole
roundness
processing energy consumption
process parameter
boring
