压缩线法求动态上止点

Algorithm Design on Computing Dynamic Top Dead Center with Compressing Line Method

在内燃机动态测试和燃烧分析时 ,上止点相位对结果影响很大 ,因此正确确定内燃机动态上止点相位显得非常重要。本文详细介绍了用压缩线法确定内燃机动态上止点的方法及具体过程 ,设计了其计算机算法 ,并在ZTY2 6 5天然气压缩机动态压力测试系统中加以应用 。

dead center (TDC) phase has great effect on result in combusting analysis of internal combustion engine, so it is very important that dynamic TDC phase is obtained correctly. The method and process used when calculating dynamic TDC phase with ”adverse drag method” are developed in detail, their computer algorithm is designed, and they are applied on dynamic pressure trial system of ZTY265 natural gas compressor, precise result is gained.