| 某涡喷发动机数值建模与改型设计 |
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| 引用本文： | 欧阳辉,朱之丽.某涡喷发动机数值建模与改型设计[J].北京航空航天大学学报,2008,34(3):311-314. |
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| 作者姓名： | 欧阳辉 朱之丽 |
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| 作者单位： | 北京航空航天大学 能源与动力工程学院, 北京 100083 |
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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.
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| 关 键 词： | 涡喷发动机模型 部件匹配 改型 |
| 文章编号： | 1001-5965(2008)03-0311-04 |
| 收稿时间： | 2007-06-29 |
| 修稿时间： | 2007年6月29日 |
Modeling and retrofit of certain turbojet |
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| Ouyang Hui,Zhu Zhili.Modeling and retrofit of certain turbojet[J].Journal of Beijing University of Aeronautics and Astronautics,2008,34(3):311-314. |
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| Authors: | Ouyang Hui Zhu Zhili |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| 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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| Keywords: | turbojet engine model components match retrofitting |
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