Application of the folded resonator

• A folded side-branch resonator has been designed and tested on a heavy truck. The design procedure is based on numerical simulations of the complete exhaust line and cold flow measurements of resonator inlet resistance and end-correction. A reduction in exhaust noise of as much as 7dB relative to the standard exhaust system shows the potential of the suggested technique to handle low frequency problems without increased volume or backpressure.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)

Nyckelord

Acoustic waves

Computer simulation

Exhaust systems (engine)

Free energy

Numerical analysis

Problem solving

Trucks

Exhaust line

Folded resonator

Wave resonators

Resonators

Publikations- och innehållstyp

ref (ämneskategori)

kon (ämneskategori)