Physical model of noise in the combustion chamber of a liquid-propellant engine

О.П. Мосалов, Ю.В. Завьялова
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Abstract

В статье рассмотрена задача определения резонансных характеристик камер сгорания жидкостного ракетного двигателя. Приведён и математически обоснован подход к созданию алгоритмов решения такой задачи с помощью анализа спектральной плотности мощности шумовых сигналов параметров рабочих процессов. Рассмотрены вычислительные эксперименты и продемонстрированы их результаты для модельного сигнала с единственной модой. In this article a task of determining of resonance characteristics for combustion chambers of a liquid rocket engine. The approach for development of algorithms to solve this task using analysis of power spectral density of noise signals of working procedure parameters is considered and mathematically justified. Computational experiments are considered and their results for a model signal with a single mode is demonstrated.
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液体推进剂发动机燃烧室噪声的物理模型
本文探讨了确定液体火箭发动机燃烧室共振特性的问题。论文介绍了通过分析噪声信号功率谱密度和运行过程参数功率谱密度来创建解决这一问题的算法的方法,并从数学角度进行了论证。文章考虑了计算实验,并展示了单模式模型信号的计算结果。本文的任务是确定液体火箭发动机燃烧室的共振特性。文章考虑了利用工作程序参数噪声信号功率谱密度分析来解决这一任务的算法开发方法,并在数学上进行了论证。还考虑了计算实验,并展示了单模式模型信号的计算结果。
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