航空发动机滑油系统稳态模型的算法构造

滑油系统作为航空发动机关键系统之一,对航空发动机的可靠性起着决定性作用。在分析滑油系统部附件的基础上,根据部附件特性单调变化的特点,提出了“平衡计算”的概念,应用向量运算方法和多种插值算法取代传统的迭代算法来构造航空发动机滑油系统稳态模型算法的思路和方法,并用该算法编制程序对发动机在海平面最大状态下滑油系统性能参数进行了验算。验算结果与技术数据吻合较好,表明所构建的稳态模型算法是有效、可行的,可普遍用于模拟各种航空发动机滑油系统的工作状态。

Algorithmic Construction for Aero Engine Oil System Steady Model

The oil system, as one of the aero engine key systems, plays a crucial role on the reliabilities of aero engine. The method of constructing arithmetic of oil system steady model for aero engine has been elaborated in this paper, which is based on the analyses of different parts' characteristics that show monotone variation relationship and which introduces the notion "balanced calculation" to replace traditional iteration with vector calculus and various interpolation algorithms. The numerical calculations of the aero engine oil system with the arithmetic on condition that the aero engine works at sea level operates in maximum regime have been conducted for checking purpose. The calculated results nearly in agreement with the data given by designer, shows that the employed arithmetic is valid and practical and could be used in simulating the characteristics of diverse engine oil systems effectively.