车用发动机
車用髮動機
차용발동궤
2015年
4期
12-15
,共4页
司东亚%骆清国%许晋豪%尹洪涛%宁兴兴
司東亞%駱清國%許晉豪%尹洪濤%寧興興
사동아%락청국%허진호%윤홍도%저흥흥
气缸套%工况离散%载荷谱%磨损谱
氣缸套%工況離散%載荷譜%磨損譜
기항투%공황리산%재하보%마손보
cylinder liner%load condition discretion%load spectrum%wear spectrum
通过对气缸套-活塞环进行润滑分析 ,得到了不同曲轴转角位置活塞环的微凸体载荷分布及磨损速率.结合动载荷特点对A rchard磨损计算模型进行了修正 ,同时根据载荷分级对发动机工况进行了离散 ,计算得到了各离散网格单元内的磨损参数 ,基于发动机整机载荷谱 ,采用时间插值方法 ,编制了典型任务剖面下的气缸套磨损谱.
通過對氣缸套-活塞環進行潤滑分析 ,得到瞭不同麯軸轉角位置活塞環的微凸體載荷分佈及磨損速率.結閤動載荷特點對A rchard磨損計算模型進行瞭脩正 ,同時根據載荷分級對髮動機工況進行瞭離散 ,計算得到瞭各離散網格單元內的磨損參數 ,基于髮動機整機載荷譜 ,採用時間插值方法 ,編製瞭典型任務剖麵下的氣缸套磨損譜.
통과대기항투-활새배진행윤활분석 ,득도료불동곡축전각위치활새배적미철체재하분포급마손속솔.결합동재하특점대A rchard마손계산모형진행료수정 ,동시근거재하분급대발동궤공황진행료리산 ,계산득도료각리산망격단원내적마손삼수 ,기우발동궤정궤재하보 ,채용시간삽치방법 ,편제료전형임무부면하적기항투마손보.
Based on the lubrication analysis between cylinder liner and piston ring ,the asperity load and wear rate of piston ring at different crank angles were calculated .The Archard wear calculation model was modified according to the dynamic load characteristics ,the engine operating conditions were discretized according to the load classification and the wear parameters of each discrete mesh were acquired .Based on the engine load spectrum ,the cylinder liner wear spectrum under typical mission profile was compiled using the time interpolation method .