信息与控制
信息與控製
신식여공제
INFORMATION AND CONTROL
2010年
2期
207-211,217
,共6页
郑永煌%田锋%李人厚%邢科义
鄭永煌%田鋒%李人厚%邢科義
정영황%전봉%리인후%형과의
定时约束Petri网%液体火箭发动机%启动过程%实时在线故障诊断
定時約束Petri網%液體火箭髮動機%啟動過程%實時在線故障診斷
정시약속Petri망%액체화전발동궤%계동과정%실시재선고장진단
timing constraints Petri net%liquid propellant rocket engine%starting process%real time on-line fault diagnosis
为了解决大型运载火箭液体发动机启动过程难以建立精确解析模型和难以实现实时在线故障诊断的问题,根据其启动过程的特点,设计了基于定时约束Petri网的故障诊断模型和诊断算法,在MATLAB中建立simulink仿真模型和GUI仿真界面,验证了模型和算法的正确性和有效性.
為瞭解決大型運載火箭液體髮動機啟動過程難以建立精確解析模型和難以實現實時在線故障診斷的問題,根據其啟動過程的特點,設計瞭基于定時約束Petri網的故障診斷模型和診斷算法,在MATLAB中建立simulink倣真模型和GUI倣真界麵,驗證瞭模型和算法的正確性和有效性.
위료해결대형운재화전액체발동궤계동과정난이건립정학해석모형화난이실현실시재선고장진단적문제,근거기계동과정적특점,설계료기우정시약속Petri망적고장진단모형화진단산법,재MATLAB중건립simulink방진모형화GUI방진계면,험증료모형화산법적정학성화유효성.
It is difficult to build a precise mathematic model and implement real-time fault diagnosis for the starting process of large liquid propellant rocket engines. According to its characteristics of the starting process, a fault diagnosis model based on Petri net with timing constraints and a fault diagnosis algorithm for the starting process of liquid propellant are proposed and implemented. Its Simulink simulation model and GUI simulation interface are built in MATLAB. Simulation experiments show that the proposed model and algorithm are valid and effective.
