Aktivno izničevanje prometnega hrupa

diplomska naloga

Primož Vraničar (Avtor), Tomaž Maher (Mentor), Jure Kostanjšek (Član komisije za zagovor), Peter Lipar (Član komisije za zagovor), Tomo Cerovšek (Član komisije za zagovor)

Povzetek

Ključne besede

zvok;izničevanje zvoka;promet;decibel

Podatki

Jezik:	Slovenski jezik
Leto izida:	2012
Izvor:	Ljubljana
Tipologija:	2.11 - Diplomsko delo
Organizacija:	UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik:	[P. Vraničar]
UDK:	534.836:651.5(043.2)
COBISS:	5979489
Št. ogledov:	2838
Št. prenosov:	452
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
Sekundarni naslov:	Active road noise reduction
Sekundarni povzetek:	Theoretical principle of noise cancellation can be realized in the ideal studio conditions, but when the experiment is put into actual space and realized, we can see that the sound only partly cancels itself, on some frequencies more and on some less. However, in construction engineering we are not only dealing with certain frequencies but with frequency spectrums, if not with the whole frequency field. It is relatively hard to control the noise in traffic. We are dealing with a larger frequency spectrum or field. In my thesis I studied the theoretical basis of sound cancellation and compared it to the results I gained in an experiment in my home studio and in the field. In conclusion I presented an example of a combined noise barrier, which partly physically reduces noise and with an active anti noise system. In construction engineering the sound is known as a product of a structure under construction, or a structure already in use. In general, construction engineering mostly deals with the sound that bothers inhabitants in the vicinity of, or in the structure itself. Such sound that has negative effects on people is called noise. Until recently, most of the attention in preventing noise was dedicated to physical obstacles, like noise barriers. At the same time, a theory was developed by the science of sound that noise can be prevented by cancelling it out by itself. This is called active noise cancellation.
Sekundarne ključne besede:	Sound;noise cancellation;traffic;comparison;decibel
Vrsta datoteke:	application/pdf
Vrsta dela (COBISS):	Diplomsko delo
Komentar na gradivo:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani:	XII, 52 str., 31 str. pril.
Vrsta dela (ePrints):	thesis
Naslov (ePrints):	Active road noise reduction
Ključne besede (ePrints):	zvok;izničevanje zvoka;promet;decibel
Ključne besede (ePrints, sekundarni jezik):	Sound;noise cancellation;traffic;comparison;decibel
Povzetek (ePrints):	V gradbeništvu poznamo zvok kot proizvod objekta v gradnji ali pa objekta v sami uporabi. V splošnem se v gradbeništvu največ ukvarja z zvokom, kateri moti prebivalce, ki so v neposredni bližini ali pa v samem objektu. Takšen zvok, ki ima negativni vpliv na osebe, imenujemo hrup. Do pred kratim smo pri preprečevanju hrupa posvečali največjo pozornost fizičnim oviram, kot so protihrupne ograje in podobno, vzporedno pa je znanost zvoka razvila teorijo, da lahko hrup preprečimo tako, da zvok izničujemo s samim seboj. Takemu načinu pravimo aktivno izničevanje zvoka. Teoretično načelo izničevanja zvoka drži v idealnih pogojih studia, ampak ko preizkus prenesemo v prostor in realiziramo opazimo, da se zvok izničuje le deloma in to na določenih frekvencah bolj, na določenih frekvencah pa manj. V gradbeništvu pa v celoti nimamo opravka z določenimi frekvencami, ampak bolj spektri frekvenc, če ne celotnim frekvenčnim območjem. V prometu je hrup relativno težko nadzorovati. Imamo opravka z večjim spektrom oziroma območjem frekvenc. V diplomski nalogi sem preučil teoretično podlago izničevanja zvoka in jo primerjal z rezultati, katere sem pridobil v preizkusu v domačem studiu in na terenu. V zaključku sem zastavil podobo kombinacijske protihrupne ograje, ki delno fizično zmanjšuje hrup in delno z aktivnim protihrupnim sistemom.
Povzetek (ePrints, sekundarni jezik):	Theoretical principle of noise cancellation can be realized in the ideal studio conditions, but when the experiment is put into actual space and realized, we can see that the sound only partly cancels itself, on some frequencies more and on some less. However, in construction engineering we are not only dealing with certain frequencies but with frequency spectrums, if not with the whole frequency field. It is relatively hard to control the noise in traffic. We are dealing with a larger frequency spectrum or field. In my thesis I studied the theoretical basis of sound cancellation and compared it to the results I gained in an experiment in my home studio and in the field. In conclusion I presented an example of a combined noise barrier, which partly physically reduces noise and with an active anti noise system. In construction engineering the sound is known as a product of a structure under construction, or a structure already in use. In general, construction engineering mostly deals with the sound that bothers inhabitants in the vicinity of, or in the structure itself. Such sound that has negative effects on people is called noise. Until recently, most of the attention in preventing noise was dedicated to physical obstacles, like noise barriers. At the same time, a theory was developed by the science of sound that noise can be prevented by cancelling it out by itself. This is called active noise cancellation.
Ključne besede (ePrints, sekundarni jezik):	Sound;noise cancellation;traffic;comparison;decibel
ID:	8312535