变螺距气门弹簧的反求设计

The Inverse design of varying-pitcb value spr-ing

本文应用功能分析原理对ＮＪＤ４３３Ａ发动机变螺距气门弹簧进行了反求设计，其理论计算与台架试验均表明反求设计方案优于原设计。

In this paper,the principle of function ana-lysis is applied to inverse design of NJD433A engine va-rying-pitch valve spring,its theoretical computation andrig-testing result both make clear that the inverse designis superior to the original design.