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Sonlu Elemanlar Analizi Yoluyla Hafif CFRP Tabanlı Uydu Kamerasının Yapısal ve Optik Değerlendirmesi

Structural and Optical Evaluation of a Lightweight CFRP-Based Satellite Camera Through Finite Element Analysis

Ümit Yılmaz(SİVAS BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ)0000-0001-8922-2387
Özgür Selimoğlu(ANKARA ÜNİVERSİTESİ)0000-0002-3162-6829
Muhammed Fatih Kılıçaslan(SİVAS BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ)0000-0001-8507-3900
Sayfa
148–159
Yayın Tarihi
2026-04-21
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Sonuçlar, CFRP tüp konfigürasyonunun yeterli birinci mod doğal frekansı ve minimum yerçekimi deformasyonu dahil olmak üzere temel performans kriterlerini karşıladığını ve böylece uzayda taşınan elektro-optik yüklerin yapısal ve optik gereksinimlerini karşıladığını göstermektedir.

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Amaç & Hipotez:Ağırlık azaltma, uzay uygulamaları için kritik bir gerekliliktir, çünkü toplam kütlenin azaltılması hem fırlatma maliyetlerini hem de operasyonel verimliliği doğrudan etkiler.
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Temel Bulgular & Veri:Bu nedenle, yüksek mukavemet-ağırlık oranlarıyla bilinen karbon fiber takviyeli polimerler (CFRP’ler), uydulardaki elektro-optik yüklerin yapısal bileşenlerinde yaygın olarak kullanılmaktadır.
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Sonuç & Katkı:Sonuçlar, CFRP tüp konfigürasyonunun yeterli birinci mod doğal frekansı ve minimum yerçekimi deformasyonu dahil olmak üzere temel performans kriterlerini karşıladığını ve böylece uzayda taşınan elektro-optik yüklerin yapısal ve optik gereksinimlerini karşıladığını göstermektedir.
🔬Tür:Deneysel Tarla Denemesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:CFRP · sonlu elemanlar analizi · yerçekimi kaynaklı deformasyon

Özet

Ağırlık azaltma, uzay uygulamaları için kritik bir gerekliliktir, çünkü toplam kütlenin azaltılması hem fırlatma maliyetlerini hem de operasyonel verimliliği doğrudan etkiler. Bu nedenle, yüksek mukavemet-ağırlık oranlarıyla bilinen karbon fiber takviyeli polimerler (CFRP’ler), uydulardaki elektro-optik yüklerin yapısal bileşenlerinde yaygın olarak kullanılmaktadır. Dünya gözlem görevlerinde elektro-optik yüklerin güvenilir performansı için, uydunun yörüngede yerçekimi koşullarından mikro yerçekimine geçişi sırasında oluşan yerçekimi kaynaklı deformasyonların öngörülmesi gerekmektedir. Bu deformasyonlar, doğru şekilde öngörülmezse, optik hizalamayı bozabilir ve görüntüleme performansını tehlikeye atabilir. Ayrıca, bu tür sistemlerin yapısal bütünlüğü, fırlatma sırasında yaşanan dinamik yükler altında, özellikle kritik olan doğal frekansların değerlendirilmesine odaklanılarak sağlanmalıdır. Bu çalışma, CFRP tabanlı bir tüp yapısı kullanan hafif bir Dünya gözlem uydu kamerası için entegre bir opto-mekanik analiz yaklaşımını özetlemektedir. Yerçekiminden kaynaklanan deformasyonların optik hizalama ve genel sistem performansı üzerindeki etkisini değerlendirmek için direcsonlu elemanlar yapısal analizi yapılmıştır. Sonuçlar, CFRP tüp konfigürasyonunun yeterli birinci mod doğal frekansı ve minimum yerçekimi deformasyonu dahil olmak üzere temel performans kriterlerini karşıladığını ve böylece uzayda taşınan elektro-optik yüklerin yapısal ve optik gereksinimlerini karşıladığını göstermektedir.

Abstract

Lightweighting is a critical requirement for space-borne applications, as reducing overall mass directly influences both launch costs and operational efficiency. Carbon fiber-reinforced polymers (CFRPs), known for their high strength-to-weight ratio, are therefore widely utilized in the structural components of electro-optical payloads on satellites. For the reliable performance of electro-optical payloads in Earth observation missions, it is essential to predict gravity-induced deformations that occur when the satellite transitions from ground conditions to microgravity in orbit. These deformations, if not properly predicted, can degrade the optical alignment and compromise imaging performance. Additionally, the structural integrity of such systems must be ensured under the dynamic loads experienced during launch, with a particular focus on evaluating natural frequencies that are critical. This study outlines an integrated opto-mechanical analysis approach for a lightweight Earth observation satellite camera employing a CFRP-based tube structure. A finite element structural analysis is conducted to evaluate the impact of gravity-released deformations on optical alignment and overall system performance. The results indicate that the CFRP tube configuration satisfies essential performance criteria-including sufficient first-mode natural frequency and minimal gravitational deformation-thereby satisfying the structural and optical requirements of space-borne electro-optical payloads.

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Bu Makaleye Atıf Yap

Yılmaz, Ü., Selimoğlu, Ö., Kılıçaslan, M. F. (2026). Sonlu Elemanlar Analizi Yoluyla Hafif CFRP Tabanlı Uydu Kamerasının Yapısal ve Optik Değerlendirmesi. Karaelmas Fen ve Mühendislik Dergisi, Cilt: 16 Sayı: 1, 148–159. https://doi.org/10.7212/karaelmasfen.1816028

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