Exhaust resonator design

Design of a Muffler & Effect of Resonator length for 3 ...

Keywords: - Muffler, Insertion loss, Resonator, Exhaust noise I. INTRODUCTION Silencer is also termed as muffler. It is used for reducing the noise emitted by exhaust of an internal combustion engine, which is a major source of noise pollution. It becomes a more vital concern when used in residential areas or areas where noise creates hazard. Generally, noise level of more than 80-90 dB is ...

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September 22nd,2019

EXHAUST SYSTEMS - Adobe

Well-designed exhaust systems collect exhaust gases from engine cylinders and discharge them as quickly and silently as possible. Primary system design considerations include: Minimizing resistance to gas flow (back pressure) and keeping it within the limits specified for the particular engine model and rating to provide maximum efficiency. Reducing exhaust noise emission to meet local ...

September 22nd,2019

Engine Exhaust Noise Control

The first step in generator exhaust noise control design is to determine if a single muffler (by itself) can meet the project requirements. Step 1 in this process is to obtain the unsilenced noise level from the engine manufacturer. This is typically given as sound pressure level at 1 meter (or similar distance). Step 2 is to determine the noise criteria at the receiver. Provide a 5 dBA margin ...

September 22nd,2019

Exhaust optimization for Viking Motorsports Formula SAE ...

existing design. II. Exhaust ... Helmholtz resonator chambers A Helmholtz resonator consists of an acoustic chamber that is branched off of the main header by a small diameter pipe. The neck of the resonator is analogous to a mass and the cavity to a spring similar to a mechanical spring­mass oscillator. As acoustic pressure waves encounter the resonator aperture, small amplitude oscillations ...

September 22nd,2019

10 Design of Mufflers Silencers - web.engr.uky.edu

The Helmholtz Resonator . Design of Mufflers and Silencers Noise and Vibration Short Course Dept. of Mech. Engineering 11 University of Kentucky F = PS B x V S B L L’ is the equivalent length of the neck (some air on either end also moves). Damping due to viscosity in the neck are neglected (resonance frequency of the Helmholtz resonator) Helmholtz Resonator Model M x +Kx =PS B x = jωu B x ...

September 22nd,2019

Design and Analysis of Automotive Muffler - ijert.org

chambers combined with a Helmholtz resonator. III. MATERIALS AND METHODS. 3.1 Problem Formulation . The exhaust system is defined as the hardware necessary to vent the exhaust system from the vehicle beginning at the exhaust plane defined by the engine manufacturer and necessary to isolate the exhaust thermally from vehicle structures. The virtual design of the exhaust muffler, as minimum ...

September 22nd,2019

Design of a Muffler & Effect of Resonator length for 3 ...

Keywords: - Muffler, Insertion loss, Resonator, Exhaust noise I. INTRODUCTION Silencer is also termed as muffler. It is used for reducing the noise emitted by exhaust of an internal combustion engine, which is a major source of noise pollution. It becomes a more vital concern when used in residential areas or areas where noise creates hazard. Generally, noise level of more than 80-90 dB is ...

September 22nd,2019

The Muffling Effect of Helmholtz Resonator Attachments to ...

The noise reduction effect of a Helmholtz resonator attachment to an acoustic environment such as the exhaust system of a positive displacement compressor can be predicted quantitatively. 6.

September 22nd,2019

3.0 Exhaust Muffler Design Principles 3.1 Basic Concepts

Reactive silencer design is based either on the principle of a Helmholtz resonator or an expansion chamber, and requires the use of acoustic transmission line theory. In a Helmholtz resonator design a cavity is attached to the exhaust pipe.

September 22nd,2019

DESIGN AND ANALYSIS OF EXHAUST GAS RESONATOR

Abstract: Noise pollution is on the rise with the increasing automobiles. Muffler is an essential component in the automobile which is used to reduce the noise from the engine.

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