Eksperimentalno određivanje buke malih zrakoplova s različitim klipnim motorima

master's thesis

• Title (english): Experimental Noise Determination of Small Aircraft with Dissimilar Powerplants
• Author: Marko Kuzmanović
• Mentor: Tino Bucak (mentor)
• Committee member: Anita Domitrović (predsjednik povjerenstva)
• Committee member: Jurica Ivošević (član povjerenstva)
• Committee member: Doris Novak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Transport and Traffic Sciences; (Division of Aeronautics); (Department of Aeronautics); Zagreb
• Defense date and country: 2018-09-26, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Traffic and Transport Technology; Air Traffic

Abstract

Piloti malih elisno klipnih zrakoplova su podložni utjecaju buke značajnih razina kakvu proizvode poglavito pogonske grupe takvih zrakoplova. Stoga je zanimljivo odrediti karakteristike takve buke, pogotovo s obzirom na neke dane zahtjeve ili usporedbe. Korištenjem odgovarajućih mjernih uređaja može se doći do preciznih mjernih rezultata koji će ukazivati na razmjere utjecaja buke na pilota koje može doživjeti tijekom leta. U ovom diplomskom radu provedeno je eksperimentalno utvrđivanje i usporedba buke dva zrakoplova istog tipa, ali sa motorima različite snage. Svrha je bila odrediti koliko se razlikuju zvučni otisci obaju motora te procijeniti koji od njih je bučniji i subjektivno neugodniji. Korelirao se razmjer buke kako bi se utvrdio stupanj promjene ovisno o promjeni snage pogonske grupe i sukladno tome stupanj povećanja utjecaja snažnijih motora na samog pilota. Upotrebljavajući stvarne, opipljive i konkretne mjerne rezultate, cilj ovog istraživanja je dokazati kako buka zrakoplova utječe na ergonomiju i performanse pilota s obzirom na različitost pogonske grupe.

Abstract (english)

Pilots of small propeller piston aircraft are submissive to the influence of significant levels of noise originating mainly from the powerplants of these kinds of aircraft. Therefore, it would be interesting to determine their noise characteristics, especially regarding to some given requirements and comparisons. By using appropriate measurement instruments, precise results can be obtained which will indicate the levels of noise influence that a pilot can experience during a flight. In this master thesis an experimental determination and comparison was conducted on a two same model aircraft but with dissimilar powerplants. The purpose was to determine how different are the sound clips of both engines and to evaluate which one is noisier and subjectively more unpleasant. The scale of noise was correlated, so the degree of change could be determined, depending on the variation of engine power and according to that, the degree of influence on a pilot was also determined. By using the real, tangible and specific measured results, the aim of this research is to demonstrate how the noise of an aircraft can influence the ergonomics and performances of pilots, considering different powerplants.

• Keywords: buka; mali elisno klipni zrakoplovi; pogonska grupa; utjecaj
• Keywords (english): noise; small piston engine aircraft; powerplant; influence
• Language: croatian
• URN:NBN: urn:nbn:hr:119:027524
• Study programme: Title: Aeronautics; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka aeronautike (magistar/magistra inženjer/inženjerka aeronautike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-11-16 15:09:10