摘要
针对目前再制造中零部件经常出现的"滞后再制造"或"提前再制造"问题,提出了离心压缩机叶轮主动再制造设计和时机调控方法。选取关键零部件特征结构,结合疲劳寿命理论和叶轮设计基础,建立结构与服役性能的映射模型,实现关键零部件的主动再制造设计。通过优化特征结构参数,改变零部件服役寿命和再制造临界点,并与产品综合性能劣化拐点相匹配,完成零部件主动再制造时机调控。以PCL8L型叶轮为例,基于构建的叶轮特征结构(出口安放角、入口安放角和后缘厚度)与寿命之间的量化关系模型,在当前定期维护需求下,通过理论计算和仿真分析,验证了主动再制造设计和时机调控方法的可行性。
Aimed at the present situations of remanufacturing components that often occured the issues of‘lag of remanufacturing＇or‘remanufacturing in advance＇,a design method of predecisional remanufacturing and timing control for centrifugal compressor impellers was presented herein.By choosing vital component characteristic structures,combined with the theory of fatigue life and basic design method of impellers,the structure and performance of the service mapping model was established,the predecisional remanufacturing design of vital components was implemented.Through the optimization of structure parameters,changing the service performances and remanufacturing points of components,and matching with product performance degradation inflection points,the predecisional remanufacturing timing control was implemented.Taking the PCL8 Ltype of centrifugal compressor impeller as an example,three structure characteristis of impellers（outlet angle,entrance angle and the trailing edge thickness）were selected,the quantitative relationship among the impeller structure characteristics and the service fatigue lifes was built.Then,through the simulation analysis and considering the current preventive maintenance requirements,the predecisional remanufacturing of timing control for centrifugal compressors.
作者
宋守许
卜建
柯庆镝
SONG Shouxu BU Jian KE Qingdi(School of Mechanical Engineering, Hefei University of Technology, Hefei, 23000)
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2017年第15期1862-1869,1878,共9页
China Mechanical Engineering
基金
国家重点基础研究发展计划(973计划)资助项目(2011CB013406)
国家自然科学基金资助项目(51375133)
关键词
主动再制造
离心压缩机
特征结构
时机调控
predecisional remanufacturing
centrifugal compressor
characteristics of structure
timing control
