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一种驱动项目运行过程的弱化工作流引擎
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作者 徐志勇 王为新 姜寿山 《航空制造技术》 2006年第6期77-79,88,共4页
提出了基于弱化工作流引擎的项目运行过程管理方法,给出了工作流模型的定义、项目活动推动规则以及项目运行过程推动算法。使用该引擎可以方便地分析项目计划的执行情况,确保项目按期顺利完成。
关键词 弱化工作流引擎 项目运行过程管理 推动算法
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INVESTIGATION OF FLIGHT DYNAMICS OF THRUST VECTORING AIRCRAFT USING EXTENDED CONTINUATION METHODS
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作者 沈宏良 刘昶 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2002年第2期151-156,共6页
This paper presents the flight dynamical behavior of the thrust vectoring aircraft with extended bifurcation and continuation methods. In contrast to the standard bifurcation and continuation methods, the extended met... This paper presents the flight dynamical behavior of the thrust vectoring aircraft with extended bifurcation and continuation methods. In contrast to the standard bifurcation and continuation methods, the extended methods are capable of calculating the continuation curves of the equilibrium points for the particular type of trimming flight. Therefore, these methods can not only give the performance measures of aircraft, but also determine the stability of trimming points. In this paper, the methods are used to verify the effectiveness of the thrust vectoring control law, to define the flight envelope boundary, to analyze the stability and controllability of trimming flight, and to predict the departures of the instable flight. The result shows that the extended methods provide more flight dynamic information and are useful in preliminary design of the thrust vectoring aircraft. 展开更多
关键词 thrust vectoring control continuation methods flight envelope flight stability
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