Study on Identification Method for Parameter Uncertainty Model of Aero Engine
The linear model of an aero engine is effective in a small range of the neighborhood of equilibrium points. According to this problem, the identification method for the parameter uncertain linear model of the aero engine was proposed. The identification problem is solved by calculating nonlinear pro...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/6015270 |
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| _version_ | 1832546150079528960 |
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| author | Jie Bai Shuai Liu Wei Wang |
| author_facet | Jie Bai Shuai Liu Wei Wang |
| author_sort | Jie Bai |
| collection | DOAJ |
| description | The linear model of an aero engine is effective in a small range of the neighborhood of equilibrium points. According to this problem, the identification method for the parameter uncertain linear model of the aero engine was proposed. The identification problem is solved by calculating nonlinear programming. Considering the parameter uncertainty of the model is the critical point of this research during the optimization process. A parameter uncertain model of an aero engine can be obtained, which has large use range. This method is used for DGEN380 aero engine. The two parameters, VDD and VE, are defined for describing error range. Compared with experimental data, the uncertain model of DGEN 380 can simulate the real state of DGEN380 within 1% error range when ΔPLA<22%. Compared with another conventional method of identification (recursive least squares), the parameter uncertain model, established by the method of this research, has a broad application area through parameter uncertainty of the model. |
| format | Article |
| id | doaj-art-a26067bdf38243519603afe5b832f439 |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-a26067bdf38243519603afe5b832f4392025-02-03T07:23:50ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742019-01-01201910.1155/2019/60152706015270Study on Identification Method for Parameter Uncertainty Model of Aero EngineJie Bai0Shuai Liu1Wei Wang2School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, ChinaSchool of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, ChinaKey Laboratory for Civil Aircraft Airworthiness Certification Technology, Civil Aviation University of China, Tianjin 300300, ChinaThe linear model of an aero engine is effective in a small range of the neighborhood of equilibrium points. According to this problem, the identification method for the parameter uncertain linear model of the aero engine was proposed. The identification problem is solved by calculating nonlinear programming. Considering the parameter uncertainty of the model is the critical point of this research during the optimization process. A parameter uncertain model of an aero engine can be obtained, which has large use range. This method is used for DGEN380 aero engine. The two parameters, VDD and VE, are defined for describing error range. Compared with experimental data, the uncertain model of DGEN 380 can simulate the real state of DGEN380 within 1% error range when ΔPLA<22%. Compared with another conventional method of identification (recursive least squares), the parameter uncertain model, established by the method of this research, has a broad application area through parameter uncertainty of the model.http://dx.doi.org/10.1155/2019/6015270 |
| spellingShingle | Jie Bai Shuai Liu Wei Wang Study on Identification Method for Parameter Uncertainty Model of Aero Engine International Journal of Aerospace Engineering |
| title | Study on Identification Method for Parameter Uncertainty Model of Aero Engine |
| title_full | Study on Identification Method for Parameter Uncertainty Model of Aero Engine |
| title_fullStr | Study on Identification Method for Parameter Uncertainty Model of Aero Engine |
| title_full_unstemmed | Study on Identification Method for Parameter Uncertainty Model of Aero Engine |
| title_short | Study on Identification Method for Parameter Uncertainty Model of Aero Engine |
| title_sort | study on identification method for parameter uncertainty model of aero engine |
| url | http://dx.doi.org/10.1155/2019/6015270 |
| work_keys_str_mv | AT jiebai studyonidentificationmethodforparameteruncertaintymodelofaeroengine AT shuailiu studyonidentificationmethodforparameteruncertaintymodelofaeroengine AT weiwang studyonidentificationmethodforparameteruncertaintymodelofaeroengine |