丁国栋 江永瑞 徐庆增 宋广迎 王侃侃 栾新强 赵海存

潍柴动力股份有限公司

    摘要：本文对某型号柴油机的活塞与气门的热态余隙使用统计公差分析方法进行分析，并通过试验进行修正，相比传统的极值法，更接近生产实际。

    关键词：柴油机；统计公差分析

    Abstract：The paper introduces the statistical tolerance analysis about clearance between piston and valve of some diesel engine in hot state. The result of simulation was revised According the result of test. According to Worst Case Analysis, the result of simulation of using this method is more similar to actual production.

    Key words：diesel engine; statistical tolerance analysis