دینامیک و مدل سازی غیر خطی موتور سیکل انبساطی

اسکندری, محمد امین; کریمی, حسن; رمش, داود; علی خانی, محمد رضا

doi:10.30699/jsst.2020.1156

نوع مقاله : مقالة‌ تحقیقی‌ (پژوهشی‌)

نویسندگان

¹ دانشکده مهندسی هوافضا/ دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران

² استاد، دانشکده مهندسی هوافضا، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران

³ دانشکده مهندسی هوافضا، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران

⁴ کارشناس ارشد، دانشکده مهندسی هوافضا، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران

https://doi.org/10.30699/jsst.2020.1156

چکیده

موتورهای انبساطی، موتورهایی هستند که از نظر دینامیکی رفتار بسیار پیچیده و حساسی دارند. در این موتورها برخلاف سایر موتورها، از دبی مولفه سوخت برای به تولید توان مورد نیاز پمپ ها بهره برده می شود. همین امر فرآیند راه اندازی را در این نوع موتورها را بسیار دشوار و پیچیده نموده است. عملکرد شیرآلات کنترلی فرآیند دینامیکی پیچیده ای است و پیش بینی اثر آن با اجرای آزمون های تجربی بسیار پیچیده و هزینه بر خواهد بود از این رو مدل سازی دینامیکی در توسعه این نوع موتورها از اهمیت بالایی برخوردار است و می تواند از بسیاری از هزینه های آتی جلوگیری کند. در این مقاله اقدام به مدل سازی غیر خطی موتور سوخت مایعRL-10 پرداخته می شود. هدف این پژوهش بررسی رفتار دینامیکی موتور انبساطی با استفاده از مدل های ریاضی غیر خطی است. نتایج شبیه سازی نشان داد که مدل غیر خطی ارائه شده برای این موتور از اعتبار کافی برخوردار است.

کلیدواژه‌ها

موضوعات

علوم و فناوری فضایی

عنوان مقاله [English]

Dynamic & Non-linear Modelling of an Expansion Cycle Rocket Engine

نویسندگان [English]

Mohammad Amin Eskandari ¹
Hasan Karimi ²
Davood Ramesh ³
Mohammda Reza Alikhani ⁴

¹ Department of Aerospace Engineering, K.N. Toosi University of Technology, Tehran, IRAN.

² Professor, Department of Aerospace Engineering, K.N. Toosi University of Technology, Tehran, IRAN.

³ Department of Aerospace Engineering, K.N. Toosi University of Technology, Tehran, IRAN

⁴ Department of Aerospace Engineering, K.N. Toosi University of Technology, Tehran, IRAN.

چکیده [English]

Expansion cycle rocket engines have unintelligible and sensitive dynamic behavior. Contrary to other types of rocket engine which have gas generator, Expansion cycle rocket engines utilizes mass flow of fuel propellant to provide power for rotating turbo pump. Which contributes to a complicated and difficult ignitions process in these engines. Priority and delay process in opening of control valves is important to prevent aforementioned phenomena. As opening and closing of control valves cause dynamic process in rocket engine, whose effects are expensive and difficult to predict by experimental tests. Therefore, dynamic modelling plays a key role in development of expansion cycle rocket engines and may decrees future expenses. In this article RL-10 rocket engine with sufficient data for validation has been chosen. The main goal of this article is dynamic modelling of expansion cycle rocket engine using mathematical non-linear models. Modelling results yield that the presented non-linear model is valid.

کلیدواژه‌ها [English]

RL-10
dynamic analysis
Liquid Rocket Engine

مراجع

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دینامیک و مدل سازی غیر خطی موتور سیکل انبساطی

مراجع

مراجع

دوره 13، شماره 1 - شماره پیاپی 42فروردین 1399صفحه 39-48

دوره 13، شماره 1 - شماره پیاپی 42
فروردین 1399
صفحه 39-48