東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁 到查詢結果 [ subject:"Motor vehicles- Design and construction." ]

切換: 標籤 | MARC模式 | ISBD

Acoustic analysis and design of shor...

Mimani, Akhilesh.

FindBook

Google Book

Amazon

博客來

Acoustic analysis and design of short elliptical end-chamber mufflers

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Acoustic analysis and design of short elliptical end-chamber mufflers/ by Akhilesh Mimani.
作者:	Mimani, Akhilesh.
出版者:	Singapore :Springer Singapore : : 2021.,
面頁冊數:	xiii, 153 p. :ill. (some col.), digital ;24 cm.
內容註:	Introduction -- Solution of the Helmholtz equation in the Elliptical Cylindrical Co-ordinates -- Characterization of an Elliptical/Circular Cylindrical Chamber Muffler -- Analysis and Design of Long Chamber Mufflers -- Double-Tuning the Short Chamber Mufflers: Design for Broadband Attenuation -- Summary of Contribution and Directions for Future Work.
Contained By:	Springer Nature eBook
標題:	Internal combustion engines - Mufflers. -
電子資源:	https://doi.org/10.1007/978-981-10-4828-9
ISBN:	9789811048289

Acoustic analysis and design of short elliptical end-chamber mufflers
Mimani, Akhilesh.

Acoustic analysis and design of short elliptical end-chamber mufflers[electronic resource] /by Akhilesh Mimani. - Singapore :Springer Singapore :2021. - xiii, 153 p. :ill. (some col.), digital ;24 cm.

Introduction -- Solution of the Helmholtz equation in the Elliptical Cylindrical Co-ordinates -- Characterization of an Elliptical/Circular Cylindrical Chamber Muffler -- Analysis and Design of Long Chamber Mufflers -- Double-Tuning the Short Chamber Mufflers: Design for Broadband Attenuation -- Summary of Contribution and Directions for Future Work.

This book presents a three-dimensional analysis of acoustic wave propagation in an elliptical waveguide, and applies the equations and concepts to design axially short elliptical end-chamber muffler configurations which are an important component of a complex multi-pass muffler used in a modern-day automotive exhaust system. A general solution of the Helmholtz equation in elliptical cylindrical co-ordinates is presented in terms of the Mathieu and modified Mathieu modal functions. This is followed by the tabulation and analysis, for the first time, of the non-dimensional resonance frequencies of the transverse modes of a rigid-wall elliptical waveguide for a complete range of aspect ratio. The modal shape patterns of the first few circumferential, radial and cross-modes are examined with particular attention to the pressure nodal ellipses and hyperbolae. An analytical formulation is then outlined for characterizing a single-inlet and single-outlet elliptical muffler with the inlet located on the end face and the outlet located either on the end face or side-surface. The ensuing chapter is devoted toward analyzing the Transmission Loss (TL) performance of different short end-chamber mufflers, namely (a) the straight-flow configuration having ports located on the opposite face, (b) the flow-reversal configuration with ports located on the same end face and (c) configuration with inlet port on the end face and outlet on the side surface. Design guidelines are formulated in terms of the optimal location of inlet and outlet ports which suppresses the deteriorating influence of certain higher-order modes, thereby delivering a broadband TL performance. Directions for future work are discussed toward the end. In summary, this book is a one-stop solution for a practicing automotive engineer designing mufflers, for an applied mathematician studying wave propagation in elliptical geometries, and also as a niche area within noise control engineering.

ISBN: 9789811048289

Standard No.: 10.1007/978-981-10-4828-9doiSubjects--Topical Terms:

3491224
Internal combustion engines
--Mufflers.

LC Class. No.: TJ762.E93

Dewey Class. No.: 629.25

Acoustic analysis and design of short elliptical end-chamber mufflers
LDR:03346nmm a2200337 a 4500 001 2238260
003 DE-He213
005 20210520152641.0
006 m d
007 cr nn 008maaau
008 211111s2021 si s 0 eng d
020 $a 9789811048289 $q (electronic bk.)
020 $a 9789811048272 $q (paper)
024 7 $a 10.1007/978-981-10-4828-9 $2 doi
035 $a 978-981-10-4828-9
040 $a GP $c GP
041 0 $a eng
050 4 $a TJ762.E93
072 7 $a TRC $2 bicssc
072 7 $a TEC009090 $2 bisacsh
072 7 $a TRC $2 thema
072 7 $a TRCS $2 thema
082 0 4 $a 629.25 $2 23
090 $a TJ762.E93 $b M662 2021
100 1 $a Mimani, Akhilesh. $3 3491223
245 1 0 $a Acoustic analysis and design of short elliptical end-chamber mufflers $h [electronic resource] / $c by Akhilesh Mimani.
260 $a Singapore : $b Springer Singapore : $b Imprint: Springer, $c 2021.
300 $a xiii, 153 p. : $b ill. (some col.), digital ; $c 24 cm.
505 0 $a Introduction -- Solution of the Helmholtz equation in the Elliptical Cylindrical Co-ordinates -- Characterization of an Elliptical/Circular Cylindrical Chamber Muffler -- Analysis and Design of Long Chamber Mufflers -- Double-Tuning the Short Chamber Mufflers: Design for Broadband Attenuation -- Summary of Contribution and Directions for Future Work.
520 $a This book presents a three-dimensional analysis of acoustic wave propagation in an elliptical waveguide, and applies the equations and concepts to design axially short elliptical end-chamber muffler configurations which are an important component of a complex multi-pass muffler used in a modern-day automotive exhaust system. A general solution of the Helmholtz equation in elliptical cylindrical co-ordinates is presented in terms of the Mathieu and modified Mathieu modal functions. This is followed by the tabulation and analysis, for the first time, of the non-dimensional resonance frequencies of the transverse modes of a rigid-wall elliptical waveguide for a complete range of aspect ratio. The modal shape patterns of the first few circumferential, radial and cross-modes are examined with particular attention to the pressure nodal ellipses and hyperbolae. An analytical formulation is then outlined for characterizing a single-inlet and single-outlet elliptical muffler with the inlet located on the end face and the outlet located either on the end face or side-surface. The ensuing chapter is devoted toward analyzing the Transmission Loss (TL) performance of different short end-chamber mufflers, namely (a) the straight-flow configuration having ports located on the opposite face, (b) the flow-reversal configuration with ports located on the same end face and (c) configuration with inlet port on the end face and outlet on the side surface. Design guidelines are formulated in terms of the optimal location of inlet and outlet ports which suppresses the deteriorating influence of certain higher-order modes, thereby delivering a broadband TL performance. Directions for future work are discussed toward the end. In summary, this book is a one-stop solution for a practicing automotive engineer designing mufflers, for an applied mathematician studying wave propagation in elliptical geometries, and also as a niche area within noise control engineering.
650 0 $a Internal combustion engines $x Mufflers. $3 3491224
650 0 $a Motor vehicles $x Design and construction. $3 815343
650 0 $a Acoustical engineering. $3 630085
650 0 $a Engineering mathematics. $3 516847
650 1 4 $a Automotive Engineering. $3 928032
650 2 4 $a Engineering Acoustics. $3 1533220
650 2 4 $a Acoustics. $3 879105
650 2 4 $a Mathematical and Computational Engineering. $3 3226306
650 2 4 $a Numerical and Computational Physics, Simulation. $3 2209853
710 2 $a SpringerLink (Online service) $3 836513
773 0 $t Springer Nature eBook
856 4 0 $u https://doi.org/10.1007/978-981-10-4828-9
950 $a Engineering (SpringerNature-11647)