Bir Haberleşme Uydusunun Elektriksel Kablolama Tasarım ve Geliştirme Çalışmaları

Öz

Bu çalışmada, haberleşme ve servis modülünden oluşan haberleşme uydusu için tasarlanıp geliştirilen, sinyal ve güç hatlarının bağlantısını sağlayan, 25 km uzunluğunda ve 1100 adet konektöre sahip kablolama alt-sistemi ile ilgili bilgiler verilmiştir. 3-boyutlu kablolama rota tasarımı, minimum büküm yarı çapı, montaj kolaylığı ve konektör çıkışlarında stressiz büküm gibi kritik tasarım çözümlerini sağlamak üzere NX CAD yazılımda gerçekleştirilmiştir. Elektromanyetik uyuma sahip bir elektriksel kablo bağlantı sistemi elde edebilmek için çeşitli tasarım çözümleri uygulanmıştır. Kablolar arası etkileşim, elektromanyetik alan-kablo etkileşimi ve yapı üzerindeki akım-kablo etkileşimi gibi elektromanyetik etkileşim sorunlarına karşı önlemler alınmıştır. Elektriksel arayüz tasarımı üç aşamada çekleştirilmiştir: aviyonik mimari, uçtan uca bağlantı ve bağlanabilirlik tasarımı. Sistem seviyesi modüler tasarımı desteklemek amacıyla kablolamayı fiziksel olarak ayıran arayüz konektörleri kullanılmış olup, fonksiyonel ve operasyonel ihtiyaçları karşılamak üzere güvenli/ateşle konektörü ve göbek-bağı konektörü kullanılmıştır. Sabit ve hareketli konektörlerin montajı için “panel üstü” ve “panel içi” tipte konektör braketleri geliştirilmiştir. Kablolama malzemelerinin seçimi çevresel sıcaklık koşullarına göre gerçekleştirilmiş ve kablolar akım azaltım isterlerine göre boyutlandırılmıştır.

Anahtar Kelimeler

• Uydu Teknolojileri
• Elektriksel Kablolama Tasarım
• Elektriksel Arayüz Tasarım

Electrical Wiring Design and Development Studies of a Communication Satellite

Abstract

In this study, information about a harness subsystem, connects signals and electrical power with 25 km of wiring and 1100 connectors, which is designed and developed for the communication satellite consisting of communication module and service module is given. Harness 3-dimensional layout is developed in NX computer aided design (CAD) software, providing key design features i.e., minimum bend radius, easy installation and stress relief. A variety of design solutions are implemented in order to achieve electromagnetic compatible electrical wiring interconnecting system (EWIS). Possible electromagnetic interference sources such as wire-to-wire coupling, electromagnetic field-to-wire coupling and structural current-to-wire coupling are eliminated. The electrical interfaces are developed in three phases: avionics architecture, pin to pin and connectivity design. As intermediate connectors are implemented to harness to provide physical separation which support system level modular design approach, also safe/arm connectors and umbilical connectors are implemented to satisfy functional and operational needs. “On panel” and “in panel” type connector brackets are developed for plug and receptacle connector mating. Harness components are chosen based on thermal ambient conditions and wires are sized according to current derating requirements.

Keywords

• Satellite Technologies
• Electrical Wiring Harness Design
• Electrical Interface Design

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