Investigation of Porous Material Effects on Automotive Intake System Using Statistical Energy Analysis

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

محمدحسن شجاعی فرد ¹ (استاد، دانشکده مهندسی مکانیک، دانشگاه علم و صنعت ایران.)
روح ا... طالبی ² (استادیار، دانشکده مهندسی خودرو، دانشگاه علم و صنعت ایران)
مائده امیرپور ملا ³ (کارشناس ارشد، دانشکده مهندسی خودرو، دانشگاه علم و صنعت ایران)
رضا احمدی ⁴ (دانشجوی دکتری، دانشکده مهندسی خودرو، دانشگاه علم و صنعت ایران)

Received: 2015-09-30 Accepted : 2015-09-30 Published : 2009-12-22

Keywords: Transmission loss, Intake system, Statistical energy analysis, Porous material,

Abstract :

Automobile manufactures are persistently trying to develop comfort of passengers by improving different specification such as decrease of sound level in engine compartments. There is a main problem that the noise generated in air intake systems may be disgusting. Statistical energy analysis is a suitable method for acoustical- vibration analysis of structures in high frequency range. In this paper, the air intake system of an engine compartment is modeled using SEA. The transmission loss through the intake duct is calculated with importing CAD model and creating subsystems at high frequency range. In addition, comparing the results of fully modeled of intake systems with current experimental data, shows a good accuracy of results especially in high frequency range. Furthermore, the influence of inserting porous material is studied.

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