摘要
设计搭建了一种新型活塞环-缸套模拟试验机,用旋转机构代替了传统的往复机构,实现了高速工况的模拟;并配置加热源,以有效模拟缸内的热状态。利用试验机,通过正交试验与单变量试验,研究分析了润滑油入口温度(60~80℃)、活塞环摩擦面温度(60~100℃)、摩擦面相对运动速度(4.67~19.36m/s)和摩擦面承载力(55~95N)四个因素在上述参数取值范围内对润滑油膜厚度的影响规律。研究结果表明:在上述参数范围内,四个因素对油膜厚度的影响敏感度的主次关系为滑块摩擦面温度〉摩擦面间的相对运动速度〉润滑油入口温度〉摩擦面承载力。
A rotational test-rig with heating source were developed to simulate the actual high tempera- ture and high speed reciprocating operation conditions. By single variable and orthogonal test method, effects of relative speed(4.67~19.36 m/s), surface load(55~95 N), inlet oil temperature(60~80 ℃ ) and ring-face temperature (60~100 ℃)on oil film thickness were researched. It is revealed that in above ranges, the af- fecting sensitivity order of four factors is as follows: ring surface temperature relative speed inlet oil tempera- ture surface load.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2014年第6期47-53,共7页
Chinese Internal Combustion Engine Engineering
关键词
内燃机
活塞环油膜厚度
模拟试验
IC engine
piston ring oil film thickness
simula/ion test