TRAJECTORY MODELING FOR HIGH-POWER ROCKETS USING MATLAB/SIMULINK

Abstract

In this study, the trajectory of a high-power rocket was obtained from a model created using MATLAB/Simulink. The non-linear aerodynamic and thrust systems and the variable mass due to fuel consumption are the basic components of this model. The model has been validated by the data collected during the launch of a real rocket. In the case of a need to add new subsystems, the model provides easy integration through its modular and flexible structure. The model has been verified by comparing the simulation results for the altitude and orbit of the rocket with the values of real rocket launch data, as well as through the Rocketpy open source trajectory prediction tool. In order to discuss the effect of mass effect on flight performance, different mass scenarios were performed. Additionally, the velocity of the rocket, the forces acting on the rocket during flight, and its position over time from launch to landing are presented.

Keywords

• Rocket
• Trajectory Modelling
• MATLAB/Simulink.

Thanks

This work was supported by Yildiz Technical University Machine Technologies Club Yildiz Rocket Team

MATLAB/SIMULINK İLE YÜKSEK GÜÇLÜ ROKETLER İÇİN YÖRÜNGE MODELLEMESİ

Abstract

Bu çalışmada yüksek güçlü bir roketin yörüngesi MATLAB/Simulink kullanılarak oluşturulan bir model üzerinden elde edilmiştir. Modelin temel bileşenlerini, doğrusal olmayan aerodinamik ve itki sistemleri ile yakıt tüketimine bağlı değişken kütle oluşturmaktadır. Model gerçek bir roketin fırlatılması esnasında elde edilen verilerle doğrulanmış olup, modüler ve esnek yapısı sayesinde ihtiyaç duyulduğunda ek alt sistemlerin kolaylıkla entegre edilmesine olanak sağlamaktadır. MATLAB/Simulink modelinin ulaşacağı irtifa ve yörünge için gerçekleştirilen simülasyon sonuçları, gerçek bir roketin fırlatılması esnasında ve bunun yanında RocketPy açık kaynak yörünge tahmin aracı vasıtası ile elde edilen değerlerle karşılaştırılarak doğrulanmıştır. Farklı kütle senaryoları içeren simülasyonlar gerçekleştirilerek uçuş performansları incelenmiştir. Bunun yanında roketin hızı, uçuş esnasında rokete etkiyen kuvvetler ve fırlatılmasından inişine kadar geçen süre boyunca zamana bağlı konumu sunulmuştur.

Keywords

• Roket
• Yörünge Modellemesi
• MATLAB/Simulink

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