Experimental Investigation of Dust Influences on the Airplanes Sound Pressure Emission

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

RAMEZANIZADEH M.; FARAMARZI S.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:4 Page(s): 815-823

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

333

Download:

Cites:

Information Journal Paper

Title

Experimental Investigation of Dust Influences on the Airplanes Sound Pressure Emission

Author(s)

RAMEZANIZADEH M. | FARAMARZI S. | Issue Writer Certificate

Keywords

AeroacousticQ1

Atmospheric Attenuation CoefficientQ1

DustQ1

Sound Pressure LevelQ1

Aircraft SoundQ1

Abstract

The sound emission of airplanes has some applications such as localization, classification, and detecting fault. Therefore, investigation of issues, which affects the airplanes sounds, is important. In recent years, pollution of Dust in all cities of the Iran shows an increasing trend. In the literature, all variables affecting the sound emission such as temperature, pressure, and relative humidity have been investigated, but there are not any researches about the influence of Dust on the Atmospheric Attenuation Coefficient. The experimental tests have been carried out with 3 sensitive microphones, 950m away from the takeoff area of Imam Khomeini international airport for 6 different airplanes, including Airbus 320, 319, 321, Boeing 747, 777, and Embraer 190 at different atmospheric conditions. The air temperature was in the range of 20-40˚ C and the relative humidity was in the range of 2-34%. At first, the experimental setup was validated by available data, considering different temperatures and relative humidities. In this research, a new variable, β , has been introduced to detect the Dust effect, which is defined as: the difference between the calculated Sound Pressure Level at no Dust and the measured Sound Pressure Level while the Dust density is 1μ gr/m3. Airbus 320 has the minimum Dust Atmospheric Attenuation Coefficient value (0. 01202db*m3/μ gr) and its maximum is related to the Embraer 190 (0. 0154db*m3/μ gr). Finally, the obtained results show that increasing in Dust concentration (PM2. 5 and PM10) leads to increase in Atmospheric Attenuation Coefficient between airplane and microphones area, and the measured Sound Pressure Level decreases.

Cites

No record.

References

No record.

Cite

APA: Copy

RAMEZANIZADEH, M., & FARAMARZI, S.. (2019). Experimental Investigation of Dust Influences on the Airplanes Sound Pressure Emission. MODARES MECHANICAL ENGINEERING, 19(4 ), 815-823. SID. https://sid.ir/paper/179541/en

Vancouver: Copy

RAMEZANIZADEH M., FARAMARZI S.. Experimental Investigation of Dust Influences on the Airplanes Sound Pressure Emission. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(4 ):815-823. Available from: https://sid.ir/paper/179541/en

IEEE: Copy

M. RAMEZANIZADEH, and S. FARAMARZI, “Experimental Investigation of Dust Influences on the Airplanes Sound Pressure Emission,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 4 , pp. 815–823, 2019, [Online]. Available: https://sid.ir/paper/179541/en

Related Journal Papers