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- The leak of Liquid Rocket Engine (LRE) is very common and dangerous. 液體火箭發動機的泄漏是常見和極其危險的故障。
- Because the combustion mode between oxidizer and solid fuel is in particular, HRM is different from SRM and LRE. 由於氧化劑和固體燃料的組織燃燒方式不同，使得固液火箭發動機工作過程與固體、液體火箭發動機有很大的區別。
- The integrity test of Liquid Rocket Engine (LRE) must be carried out before its launch. 在液體火箭發動機發射前，必須進行完整性試驗。
- The study may be helpful for fault diagnostics of the start up of liquid rocket engine (LRE). 為液體火箭發動機啟動過程的故障診斷提供參考依據。
- The thrust chamber of the LRE works under the condition characterized by high pressure and high temperature. 液體火箭發動機推進室里的工質工作在高溫高壓環境下，可靠的冷卻是保證其安全工作的關鍵技術之一。
- Based on system analysis of LRE, OOP technique and powerful finite elements analysis software ANSYS, a CAD system has been set up. 較系統地分析了再生冷卻式液體火箭發動機推力室設計CAD系統的組成和框架,以面向對象技術和集成的大型有限元軟體ANSYS二次開發技術為基礎建立系統。
- The analysis of LRE historical test data showed that the algorithm has a high training efficiency and can detect the faults of the LRE turbopump. 對火箭發動機渦輪泵試車數據分析的應用結果表明，該演算法具有很高的訓練效率，檢測結果良好。
- Reliable cooling is one of the most key technologies to insure the LRE working safely and protect the chamber wall from burn up. 液膜冷卻作為一種重要的輔助冷卻方式，由於其良好的冷卻效果和相對簡單的通道結構，在液體火箭發動機的推進室中得到了廣泛應用。
- Firstly,besides the correlation of different knowledge,the concept and the types of LRE diagnosis knowledge are systematically described. 主要研究內容包括：系統闡述了發動機診斷知識的概念、類別和相互關係；
- It is an important and basic issue to choose monitoring parameters of Liquid propellant Rocket Engine (LRE) monitoring system in ground test. 摘要確定監測參數是液體火箭發動機地面試驗監控系統的一個重要而基礎的問題。
- For all of these reasons, it imminently asks for developing a kind of advanced professional design tool with high integration in order to improve the design level of LRE. 因此,現實迫切需要研究和開發一個專業的、集成度高的設計平台,豐富液體火箭發動機的設計手段,提高設計水平。
- By analyzing the working characteristics of the liquid rocket engine, strategies of applying data mining from the point of view of the data warehouse for FDD of LRE are proposed. 分析表明,聚類、類、聯、間序列分析和孤立點檢測等數據挖掘方法適用於液體火箭發動機的故障檢測和診斷。
- Primary research results show that such data mining methods as clustering, classification, association, time-series analysis and outlier analysis are feasible in the FDD of LRE. 分析表明,聚類、類、聯、間序列分析和孤立點檢測等數據挖掘方法適用於液體火箭發動機的故障檢測和診斷。
- A physical model of the automatic control system of a pump-fed Liquid Rocket Engine (LRE) is constructed, for which a nonlinear mathematical model is built. 摘要以能多次啟動的某泵壓式液體火箭發動機的自動控制系統為研究對象，構造了液體火箭發動機自動控制系統的物理模型，並對其建立了非線性的數學模型。
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- An adaptive threshold algorithm consisting of two stages based on autoregressive model was presented for monitoring the steady process of Liquid Propellant Rocket Engine(LRE) in ground test. 提出一種基於自回歸模型的自適應閾值檢測演算法用於監測液體火箭發動機地面試驗的穩態過程,該演算法由兩個階段組成。
- The manifestations of parameters are extracted from the simulated fault data for 16 common fault modes,these manifestations are used to establish the set cover model of multi faults diagnosis for liquid rocket engine(LRE) system. 通過從故障模擬數據中提取常見故障的效應參數癥狀 ,建立發動機的集合覆蓋多故障診斷模型。
- This paper summarizes the leak detection techniques of LRE,which are classified into groups and considered in details.Finally,several prospects of the leak? detection techniques are presented. 本文對液體火箭發動機的泄漏故障檢測方法進行了綜述，對已用於或可能用於液體火箭發動機檢漏的技術進行分類和詳細評述，指出了液體火箭發動機檢漏技術的幾個發展方向。
- To deal with the lack of fault samples in the fault detection of a Liquid Rocket Engine (LRE) turbopump, a detection model based on one-class support vector machines (OC-SVMs) was founded. 摘要針對在火箭發動機渦輪泵的故障檢測過程中缺乏故障樣本的問題，應用單類支持向量機，為高速渦輪泵試車數據分析建立了一種新異類檢測超球模型。
- And a multi-layer high speed training strategy was proposed for the improvement of training efficiency.The analysis of LRE historical test data showed that the algorithm has a hig... 對火箭發動機渦輪泵試車數據分析的應用結果表明,該演算法具有很高的訓練效率,檢測結果良好。
