A finite element-analytical method for optimization of micro-perforated mufflers in electric two-stage centrifugal compressors considering inhomogeneous temperature

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-01-03 DOI:10.1016/j.apacoust.2024.110520

Huan Li , Shuguang Zuo , Xudong Wu , Siyue Chen , Panxue Liu

{"title":"A finite element-analytical method for optimization of micro-perforated mufflers in electric two-stage centrifugal compressors considering inhomogeneous temperature","authors":"Huan Li , Shuguang Zuo , Xudong Wu , Siyue Chen , Panxue Liu","doi":"10.1016/j.apacoust.2024.110520","DOIUrl":null,"url":null,"abstract":"<div><div>The multi-chamber micro-perforated muffler (MCMPM) is widely applied for the noise control of electric two-stage centrifugal compressors (ETCCs) in fuel cell vehicles (FCVs), whose performance is closely related to the temperature changes at the inlet of the MCMPM caused by large speed variations of the ETCC. Therefore, it is of great significance to study the modeling method and transmission performance of the MCMPM considering the temperature changes and its inhomogeneous distribution inside it. In this paper, an acoustic and thermal experiment is first conducted to obtain the noise control target and the inlet temperature of MCMPMs. Results show that the temperature ranges from 288 K to 405 K with a variance of more than 100 K. The noise control target is also calculated by extracting 1st-4th order noise. Then, a finite element-analytical method (FEAM) is proposed based on a two-dimensional (2D) analytical model and the equivalent temperature coefficient from FEM results. The FEAM can predict the transmission loss (TL) of the MCMPM under high and inhomogeneous temperature conditions more accurately, which covers the noise control target of ETCCs. Finally, an MCMPM is optimized for better performance by adopting the FEAM and verified experimentally, demonstrating its accuracy and excellence. The proposed method in this paper is time-efficient and applicable in various conditions, which can provide guidance for the optimization of MCMPMs to achieve better noise control in FCVs.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110520"},"PeriodicalIF":3.4000,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Acoustics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0003682X24006716","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ACOUSTICS","Score":null,"Total":0}

引用次数: 0

Abstract

The multi-chamber micro-perforated muffler (MCMPM) is widely applied for the noise control of electric two-stage centrifugal compressors (ETCCs) in fuel cell vehicles (FCVs), whose performance is closely related to the temperature changes at the inlet of the MCMPM caused by large speed variations of the ETCC. Therefore, it is of great significance to study the modeling method and transmission performance of the MCMPM considering the temperature changes and its inhomogeneous distribution inside it. In this paper, an acoustic and thermal experiment is first conducted to obtain the noise control target and the inlet temperature of MCMPMs. Results show that the temperature ranges from 288 K to 405 K with a variance of more than 100 K. The noise control target is also calculated by extracting 1st-4th order noise. Then, a finite element-analytical method (FEAM) is proposed based on a two-dimensional (2D) analytical model and the equivalent temperature coefficient from FEM results. The FEAM can predict the transmission loss (TL) of the MCMPM under high and inhomogeneous temperature conditions more accurately, which covers the noise control target of ETCCs. Finally, an MCMPM is optimized for better performance by adopting the FEAM and verified experimentally, demonstrating its accuracy and excellence. The proposed method in this paper is time-efficient and applicable in various conditions, which can provide guidance for the optimization of MCMPMs to achieve better noise control in FCVs.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.