Computational performance of analytical methods for the acoustic modelling of automotive exhaust devices incorporating monoliths

作者：

Highlights：

• Analytical techniques are proposed to speed up TL calculations in exhaust devices with monoliths.

• Multidimensional sound propagation in the ducts is combined with plane waves in the capillaries.

• The computational effort and accuracy of the analytical approaches is compared.

摘要

•Analytical techniques are proposed to speed up TL calculations in exhaust devices with monoliths.•Multidimensional sound propagation in the ducts is combined with plane waves in the capillaries.•The computational effort and accuracy of the analytical approaches is compared.

论文关键词：Acoustic modelling,Transmission loss,Automotive exhaust device,Monolith,Mode matching method,Point collocation technique

论文评审过程：Received 29 November 2016, Revised 28 February 2017, Available online 20 March 2017, Version of Record 29 October 2017.

论文官网地址：https://doi.org/10.1016/j.cam.2017.03.010