Boreskopski pregled zgorevalne komore in visokotlačne turbine turboventilatorskega motorja CF34-8C5 pri linijskem vzdrževanju

Parkelj, David (author), Polajnar, Marko (mentor), Kalin, Mitjan (comentor)

Vzdrževanje letalskih motorjev je ključnega pomena za zagotavljanje varnosti letal in učinkovitosti njihovega delovanja. Sodobni letalski motorji zahtevajo natančno vzdrževanje in redne preglede, s katerimi se ohranja njihova zanesljivost in varnost. Ena izmed pogostejših metod za pregled stanja letalskih motorjev je boreskopija, ki omogoča pregled težko dostopnih delov brez potrebe po razstavljanju sestava in omogoča kvalitetne informacije o stanju kritičnih področij motorja ter tako pomaga pri določevanju ustreznih vzdrževalnih aktivnosti. V delu je predstavljena natančna metodologija boreskopskega pregleda, ki zajema ustrezne intervale pregledov ter vizualni pregled poškodb obravnavanih komponent. V okviru diplomske naloge je narejena primerjava med tremi različnimi, a primerljivimi turboventilatorskimi motorji CF34-8C5. Motorji so bili nameščeni na treh različnih letalih, ki so opravljali isti tip operacij pri istem letalskem prevozniku. Boreskopski pregled je v okviru linijskega vzdrževanja obsegal pregled zgorevalne komore in visokotlačne turbinske stopnje pri treh različnih motorjih z opravljenimi 8980, 15032 in 19785 cikli. V delu so predstavljene različne poškodbe preiskovanih delov, na podlagi katerih so predstavljene potrebne menjave obrabljenih delov.

• Language: Slovenian
• Keywords: boreskopija, vzdrževanje, mehanizmi obrab, letalski motor CF34-8C5, zgorevalna komora, turbinske stopnje, menjave komponent
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [D. Parkelj]
• Year: 2024
• Number of pages: XX, 56 str.
• PID: 20.500.12556/RUL-156159
• UDC: 621.452:629.7.067:658.56(043.2)
• COBISS.SI-ID: 195404803
• Publication date in RUL: 11.05.2024

PARKELJ, David, 2024, Boreskopski pregled zgorevalne komore in visokotlačne turbine turboventilatorskega motorja CF34-8C5 pri linijskem vzdrževanju [online]. Bachelor’s thesis. Ljubljana : D. Parkelj. [Accessed 26 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=156159

Secondary language

• Language: English
• Title: Borescope inspection of the combustion chamber and high-pressure turbine of the CF34-8C5 turbofan engine during line maintenance

Abstract

Maintenance of aircraft engines is crucial for ensuring the safety and efficiency of their operation. Modern aircraft engines require precise maintenance and regular inspections to maintain their reliability and safety. One of the most common methods for assessing the condition of aircraft engines is borescope inspection, which allows inspection of hard-to-reach parts without the need for disassembly and provides valuable information about the condition of critical areas of the engine, aiding in determining appropriate maintenance activities. The work presents a detailed methodology for borescope inspection, including appropriate inspection intervals and visual examination of damaged components. As part of the thesis, a comparison is made between three different but comparable turbofan engines CF34-8C5. The engines were installed on three different aircraft, performing the same type of operations for the same airline. Borescope inspection as part of line maintenance included examination of the combustion chamber and high-pressure turbine stage on three different engines with 8980, 15032, and 19785 cycles performed. The study presents various damages to the examined parts, based on which the necessary replacements of worn parts are recommended.

• Keywords: borescope inspection, maintenance, wear mechanisms, turbofan engine CF34-8C5, combustion chamber, turbine stages, component replacement