【摘要】：介紹了Fibonacci搜索方法應(yīng)用于發(fā)動(dòng)機(jī)性能優(yōu)化中的原理,建立帶兩個(gè)出口面積、氣流馬赫數(shù)可變的引射器的渦噴發(fā)動(dòng)機(jī)的總體性能計(jì)算模型,應(yīng)用Fibonacci搜索方法在優(yōu)化參數(shù)區(qū)間內(nèi)對(duì)該發(fā)動(dòng)機(jī)進(jìn)行了最大推力、最低油耗、最低渦輪前溫度模式的尋優(yōu).舉例說明了Fibonacci搜索方法應(yīng)用的具體過程.給出了不同高度、馬赫數(shù)下的尋優(yōu)結(jié)果.結(jié)果表明:最優(yōu)目標(biāo)性能滿足的約束邊界與飛行高度、馬赫數(shù)密切相關(guān).不同的飛行高度、馬赫數(shù)對(duì)應(yīng)了不同的最優(yōu)控制策略.但不論飛行任務(wù)如何,根據(jù)該方法進(jìn)行的優(yōu)化控制所獲得的目標(biāo)性能是最佳的.該優(yōu)化方法不僅適用于該類渦噴發(fā)動(dòng)機(jī),也為其他類型航空發(fā)動(dòng)機(jī)的優(yōu)化控制打下一定的基礎(chǔ).
[Abstract]:The principle of applying Fibonacci search method to engine performance optimization is introduced. The overall performance calculation model of turbojet engine with two exit areas and variable flow Mach number is established. The Fibonacci search method is used to optimize the engine's maximum thrust, minimum fuel consumption and minimum turbine front temperature mode in the optimization parameter range. An example is given to illustrate the application of Fibonacci search method. The optimization results at different heights and Mach numbers are given. The results show that the constraint boundary of the optimal target performance is closely related to the flight altitude and Mach number. At different flight altitudes, Mach numbers correspond to different optimal control strategies. However, regardless of the mission, the target performance obtained by the optimization control based on this method is the best. This optimization method is not only suitable for this kind of turbojet engine, but also lays a foundation for the optimization control of other types of aeroengine.
【作者單位】： 中國航空工業(yè)集團(tuán)公司中國燃?xì)鉁u輪研究院;
【分類號(hào)】：V233.7

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本文編號(hào)：2301368