Journals / Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi / 2020 / Cilt: 28 Sayı: 2

PRECISE PHASE PORTRAIT CONSTRUCTION FOR AN INVERTED PENDULUM USING CUBIC BEZIER CURVES

BİR TERS SARKAÇ İÇİN KÜBİK BEZİER EĞRİLERİNİN KULLANILARAK YÜKSEK DOĞRULUKLU FAZ PORTRESİ ÇIKARIMI

Pages
210–218
Publication Date
2020-08-31
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

A case study presented in this manuscript verifies that the computational approach using a cubic Bezier curves formulation has far better approximation performance compared to the ones obtained by the linear interpolation.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:A cubic Bezier curve formulation is used for generating phase portrait of an inverted pendulum system.
📊
Key Findings & Data:It is shown that both the experimentally obtained and the remaining computationally generated trajectories can be formulated as an overlapping sequence of cubic Bezier curves in a computationally efficient manner.
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Conclusion & Impact:A case study presented in this manuscript verifies that the computational approach using a cubic Bezier curves formulation has far better approximation performance compared to the ones obtained by the linear interpolation.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:kübik Bezier eğrisi · ters sarkaç · faz portresi

Abstract

A cubic Bezier curve formulation is used for generating phase portrait of an inverted pendulum system. Assuming that the cart and pendulum masses, pendulum length, and friction coefficient values in the inverted pendulum model are unknown, its finite number of experimentally obtained trajectories are utilized as a basis for generating the experimentally unavailable trajectories. It is shown that both the experimentally obtained and the remaining computationally generated trajectories can be formulated as an overlapping sequence of cubic Bezier curves in a computationally efficient manner. In the case of having no model of system dynamics, cubic Bezier curve formulation accurately relates experimentally obtained trajectories to the computationally generated trajectories corresponding to different initial conditions. A case study presented in this manuscript verifies that the computational approach using a cubic Bezier curves formulation has far better approximation performance compared to the ones obtained by the linear interpolation.

Özet

Bir ters sarkaç sisteminin faz portresinin oluşturulmasında kübik Bezier eğrisi formülasyonu kullanılmıştır. Sonlu sayıda elde edilen deneysel yörünge verileri kullanılarak, araç ve sarkaç kütlelerinin, sarkaç boyunun ve sürtünme katsayı değerlerinin bilinmediği durumlarda deneysel olarak elde edilenlerin dışındaki yörüngelerin yüksek doğrulukla çıkarılabilmesi sağlanmıştır. Deney yapılmadan hesaplanan yörüngelerin elde edilmesinde içiçe geçmiş Bezier eğrileri kullanılarak verimli bir hesaplama yapılabildiği gösterilmiştir. Verilen keyfi başlangıç şartları için, system dinamiği modelinin bilinmemesi durumunda, deneysel verilerden kübik Bezier eğrisi formülasyonu ile elde edilen yörüngeler, model dinamiği bilgisi ile hesaplanan yörüngelerle yüksek doğrulukla uyuşmaktadır. Makalede sunulan örnek çalışma, kübik Bezier eğrileri ile hesaplama yaklaşımının doğrusal interpolasyon ile elde edilebilecek değerlere göre çok daha yüksek yaklaşıklık performansı gösterdiğini doğrulamaktadır.

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Cite This Article

DINDIŞ, G., KARAMANCIOĞLU, A. (2020). PRECISE PHASE PORTRAIT CONSTRUCTION FOR AN INVERTED PENDULUM USING CUBIC BEZIER CURVES. Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, Cilt: 28 Sayı: 2, 210–218. https://ajindex.com/articles/905106

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