文章摘要
何星,毛杰键,周梓发,俞增清.基于联合仿真的柴油机缸套-活塞环磨损计算分析[J].润滑与密封,2019,44(5):116-121
基于联合仿真的柴油机缸套-活塞环磨损计算分析
Calculation and Analysis of Diesel Engine Cylinder Liner Piston Ring Wear Based on Joint Simulation
  
DOI:103969/jissn0254-0150201905019
中文关键词: 柴油机  缸套-活塞环  磨损计算  联合仿真
英文关键词: diesel engine  cylinder liner and piston ring  wear calculation  joint simulation
基金项目:西省教育厅科技项目(GJJ170943);国家自然科学基金项目(11365017;11465015).
作者单位E-mail
何星 上饶师范学院物理与电子信息学院 xinghe76327@163com. 
毛杰键   
周梓发   
俞增清   
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中文摘要:
      为研究柴油机实际工作环境与使用工况对缸套-活塞环磨损影响规律,从某12150型柴油机及其辅助系统实际工作状况出发,建立缸套-活塞环磨损热力学、动力学边界条件仿真模型和动载荷磨损计算模型,开发柴油机工况车载检测系统;采用联合仿真方法建立面向使用工况的柴油机缸套-活塞环磨损计算流程,计算分析缸套磨损分布状况,并以柴油机400 h保险期实验数据进行检验。结果表明:缸套表面磨损状况呈现不均匀分布且差异显著,其分布沿缸套轴向呈锥体形,且上止点附近磨损深度最大,其次为下止点附近,而中部磨损较小;磨损分布沿缸套圆周方向则近似呈椭圆形,其主、侧推力面磨损深度最大;缸套径向最大磨损深度计算值为479 μm,位于上止点曲柄转角9°处,实测均值为503 μm,计算误差为477%,验证了计算模型的正确性;其中第一道活塞环(梯形环)对缸套的磨损作用最大,第二道环次之,第三环作用最小。
英文摘要:
      In order to study the influence of actual working environment and working condition of diesel engine on wear of cylinder liner piston ring,a thermodynamic and dynamic boundary condition simulation model and a dynamic load wear model for cylinder liner piston ring wear were established based on the actual working condition of a 12150 type diesel engine and its auxiliary system.A vehicle detection system was developed for diesel engine working condition.The wear and tear calculation process of diesel engine cylinder liner piston ring was established based on the joint simulation method.The wear distribution of cylinder liner was calculated and analyzed,and the experimental data of diesel engine of 400 h insurance period were tested.The results show that the distribution of surface wear of cylinder liner is uneven and has significant difference.The wear distribution is conical along the cylinder sleeve,and the wear depth near the top stop is the largest,followed by next the lower stop point,while the wear depth in the middle is smaller.The wear distribution along the circumferential direction of the cylinder liner is approximately elliptical,and the maximum wear depth is on the main and lateral thrust surfaces.The calculated maximum radial wear depth of cylinder liner is 479 μm,which is located at the crank angle 9° of the top stop.The actual measurement value of the maximum radial wear depth is 503 μm and the calculation error is 477%,the correctness of the calculation model is verified.The first piston ring (trapezoidal ring) has the largest wear effect on the cylinder liner,followed by the second ring,and the effect of the third ring is the smallest.
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