An Exact Derivative Based Aero-Engine Modeling Method

Derivatives are involved in getting the Jacobian matrix for the component-level model (CLM) and the state-space model of aero-engines. However, the relationships among the variables of aero-engine are complex, and it is difficult to get analytical derivatives, which results in that the approximate d...
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Autor*in:	Shuwei Pang [verfasserIn] Qiuhong Li [verfasserIn] Haibo Zhang [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	Aero-engine component level model exact derivative finite difference Jacobian matrix

Übergeordnetes Werk:	In: IEEE Access - IEEE, 2014, 6(2018), Seite 34516-34526
Übergeordnetes Werk:	volume:6 ; year:2018 ; pages:34516-34526

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1109/ACCESS.2018.2849752

Katalog-ID:	DOAJ069661308

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spelling	10.1109/ACCESS.2018.2849752 doi (DE-627)DOAJ069661308 (DE-599)DOAJ289e6a23e8af4d899d35aa69da6428e4 DE-627 ger DE-627 rakwb eng TK1-9971 Shuwei Pang verfasserin aut An Exact Derivative Based Aero-Engine Modeling Method 2018 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Derivatives are involved in getting the Jacobian matrix for the component-level model (CLM) and the state-space model of aero-engines. However, the relationships among the variables of aero-engine are complex, and it is difficult to get analytical derivatives, which results in that the approximate derivatives are calculated by finite difference approaches and the real-time property is constrained. Thus, an exact derivative-based modeling method of aero-engine, which transforms the problem of derivative calculation to the problem of differential calculation with a chain-derivation method, is proposed. Also, the differential calculations can be executed along with the component models, and no extra aerothermodynamics calculation iteration is required. The proposed method is implemented in the steady state and transient-state calculation of the CLM, so the real-time property of the model is improved. Compared to the conventional models with centered difference method, the total time consuming of the CLM built by proposed method can be decreased more than 54% and 55% in the steady state calculation and transient-state calculation, respectively. Aero-engine component level model exact derivative finite difference Jacobian matrix Electrical engineering. Electronics. Nuclear engineering Qiuhong Li verfasserin aut Haibo Zhang verfasserin aut In IEEE Access IEEE, 2014 6(2018), Seite 34516-34526 (DE-627)728440385 (DE-600)2687964-5 21693536 nnns volume:6 year:2018 pages:34516-34526 https://doi.org/10.1109/ACCESS.2018.2849752 kostenfrei https://doaj.org/article/289e6a23e8af4d899d35aa69da6428e4 kostenfrei https://ieeexplore.ieee.org/document/8392695/ kostenfrei https://doaj.org/toc/2169-3536 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 6 2018 34516-34526
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source	In IEEE Access 6(2018), Seite 34516-34526 volume:6 year:2018 pages:34516-34526
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topic_facet	Aero-engine component level model exact derivative finite difference Jacobian matrix Electrical engineering. Electronics. Nuclear engineering
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container_title	IEEE Access
authorswithroles_txt_mv	Shuwei Pang @@aut@@ Qiuhong Li @@aut@@ Haibo Zhang @@aut@@
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callnumber-first	T - Technology
author	Shuwei Pang
spellingShingle	Shuwei Pang misc TK1-9971 misc Aero-engine misc component level model misc exact derivative misc finite difference misc Jacobian matrix misc Electrical engineering. Electronics. Nuclear engineering An Exact Derivative Based Aero-Engine Modeling Method
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topic_title	TK1-9971 An Exact Derivative Based Aero-Engine Modeling Method Aero-engine component level model exact derivative finite difference Jacobian matrix
topic	misc TK1-9971 misc Aero-engine misc component level model misc exact derivative misc finite difference misc Jacobian matrix misc Electrical engineering. Electronics. Nuclear engineering
topic_unstemmed	misc TK1-9971 misc Aero-engine misc component level model misc exact derivative misc finite difference misc Jacobian matrix misc Electrical engineering. Electronics. Nuclear engineering
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title	An Exact Derivative Based Aero-Engine Modeling Method
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title_auth	An Exact Derivative Based Aero-Engine Modeling Method
abstract	Derivatives are involved in getting the Jacobian matrix for the component-level model (CLM) and the state-space model of aero-engines. However, the relationships among the variables of aero-engine are complex, and it is difficult to get analytical derivatives, which results in that the approximate derivatives are calculated by finite difference approaches and the real-time property is constrained. Thus, an exact derivative-based modeling method of aero-engine, which transforms the problem of derivative calculation to the problem of differential calculation with a chain-derivation method, is proposed. Also, the differential calculations can be executed along with the component models, and no extra aerothermodynamics calculation iteration is required. The proposed method is implemented in the steady state and transient-state calculation of the CLM, so the real-time property of the model is improved. Compared to the conventional models with centered difference method, the total time consuming of the CLM built by proposed method can be decreased more than 54% and 55% in the steady state calculation and transient-state calculation, respectively.
abstractGer	Derivatives are involved in getting the Jacobian matrix for the component-level model (CLM) and the state-space model of aero-engines. However, the relationships among the variables of aero-engine are complex, and it is difficult to get analytical derivatives, which results in that the approximate derivatives are calculated by finite difference approaches and the real-time property is constrained. Thus, an exact derivative-based modeling method of aero-engine, which transforms the problem of derivative calculation to the problem of differential calculation with a chain-derivation method, is proposed. Also, the differential calculations can be executed along with the component models, and no extra aerothermodynamics calculation iteration is required. The proposed method is implemented in the steady state and transient-state calculation of the CLM, so the real-time property of the model is improved. Compared to the conventional models with centered difference method, the total time consuming of the CLM built by proposed method can be decreased more than 54% and 55% in the steady state calculation and transient-state calculation, respectively.
abstract_unstemmed	Derivatives are involved in getting the Jacobian matrix for the component-level model (CLM) and the state-space model of aero-engines. However, the relationships among the variables of aero-engine are complex, and it is difficult to get analytical derivatives, which results in that the approximate derivatives are calculated by finite difference approaches and the real-time property is constrained. Thus, an exact derivative-based modeling method of aero-engine, which transforms the problem of derivative calculation to the problem of differential calculation with a chain-derivation method, is proposed. Also, the differential calculations can be executed along with the component models, and no extra aerothermodynamics calculation iteration is required. The proposed method is implemented in the steady state and transient-state calculation of the CLM, so the real-time property of the model is improved. Compared to the conventional models with centered difference method, the total time consuming of the CLM built by proposed method can be decreased more than 54% and 55% in the steady state calculation and transient-state calculation, respectively.
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title_short	An Exact Derivative Based Aero-Engine Modeling Method
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up_date	2024-07-04T00:11:03.664Z
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