Modeling and retrofit of certain turbojet
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摘要: 基于面向对象的部件级航空发动机性能计算模块,构建了某无人机用小型涡轮喷气式发动机的稳态性能计算模型,并根据该发动机原始性能实验数据,对构建的计算模型进行了可信度校核.在模型校核的基础上,为提高该发动机在不同任务载荷下的功能适用性,利用部件匹配技术对该涡轮喷气式发动机提出了可行性改型设计方案.计算结果表明,在维持该涡喷发动机离心压气机工作线不变,同时保证热强度和结构强度可靠性的条件下,改进组合压气机中的轴流级压气机,可以使该发动机推力有较大提高,耗油率得到有效降低.Abstract: The static performance model of certain small turbojet installed in some unmanned-air-vehicle (UAV) was established based on object-oriented component-level aero-engine simulation modules, and its fidelity was verified by data comparison between simulation and original experiment. Whereafter, according to the engine-balance principle, some practical retrofit schemes of redesigning the axial flow compressor were given using the components-matching method under the precondition of maintaining the work-line of the centrifugal compressor and within the limitation of structure-durability and heat-load of the turbojet. The simulation result demonstrates that the retrofit schemes are effective in improving the turbojet-s general performance including thrust and specific fuel consumption (SFC).
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Key words:
- turbojet engine model /
- components match /
- retrofitting
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[1] Shine A J. Heat transfer from a vibrating plate .ASME Paper 59-HT-27,1959 [2] 林宗虎.强化传热及其工程应用[M].北京:机械工业出版社,1987:105-108 Lin Zonghu. Heat transfer technology and the engineering application [M]. Beijing: Machinery Industry Press, 1987:105-108(in Chinese) [3] 崔海亭,彭培英.强化传热新技术及其应用[M].北京:化学工业出版社,2006:8-9 Cui Haiting, Peng Peiying. New ways to enhance heat transfer and the application[M]. Beijing:Chemical Industry Press, 2006:8-9(in Chinese) [4] 威尔特J R,威克斯G E,威尔逊R E.动量、热量和质量传递原理[M].北京:化学工业出版社,2005:229-231 Wiltshire J R, Weeks G E,Wilson R E. Fundamentals of momentum, heat, and mass transfer[M]. Beijing:Chemical Industry Press, 2005:229-231(in Chinese) [5] 杨世铭,陶文铨.传热学[M].北京:高等教育出版社,2001:178-182 Yang Shiming, Tao Wenquan. Heat transfer[M]. Beijing: Higher Education Press,2001:178-182(in Chinese) -
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