Finite element boundary element numerical simulation study on acoustic vibration coupling problems

有限元法 边界元法 振动 联轴节(管道) 要素(刑法) 光滑有限元法 边界节点法 声学 扩展有限元法 边界(拓扑) 结构工程 计算机科学 物理 数学分析 工程类 机械工程 数学 政治学 法学
作者
Zhao Guo
出处
期刊:Measurement: Sensors [Elsevier BV]
卷期号:33: 101133-101133
标识
DOI:10.1016/j.measen.2024.101133
摘要

Excessive structural resonance response in the acoustic vibration coupling environment can cause adverse consequences such as structural damage, local instability, and component failure. Accurately predicting the vibration response of instruments under external sound fields helps to avoid structural performance degradation or damage caused by vibration, and ensures the reliability and safety of the system, which is of great significance for the effective load of instrument equipment. This paper constructs a finite element boundary element equation for the acoustic vibration coupling problem, and adopts a series of optimization measures for it. In response to the low computational efficiency of finite element boundary element equations and their inability to meet the computational requirements of complex models, this paper introduces the acoustic vibration reciprocity theorem and the fast directional boundary element method to compensate for the aforementioned shortcomings. In addition, the study used the weighted residual method to construct a data exchange algorithm to ensure energy conservation during the transfer process. The research focuses on typical structures of spacecraft and conducts simulation analysis and application research on acoustic vibration coupling problems. The simulation showcases that the introduction of the reciprocity theorem markedly reduces the calculation time and memory occupied by the equation, with a required calculation time of 1.23h and a data file size of approximately 299.56MB generated by the calculation; The overall error of the data exchange process is below 10−4. Scanning frequency analysis is conducted on the surface and local openings of the model structure, and it is found that the displacement of the selected excitation point is in good agreement with the analytical solution. This study effectively reduces simulation time and memory requirements through the proposed strategy, ensures energy conservation data exchange algorithms, improves the reliability and safety of structural design, and has important practical value for evaluating the structural performance of key equipment such as spacecraft.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
甜美砖家完成签到 ,获得积分10
1秒前
superspace完成签到,获得积分10
2秒前
nn发布了新的文献求助10
4秒前
求助完成签到,获得积分10
5秒前
6秒前
翁雁丝完成签到 ,获得积分10
13秒前
郭义敏完成签到,获得积分0
13秒前
gyf完成签到,获得积分10
16秒前
李保龙完成签到 ,获得积分10
17秒前
21秒前
LJJ完成签到 ,获得积分10
22秒前
量子星尘发布了新的文献求助10
25秒前
阿姨洗铁路完成签到 ,获得积分10
30秒前
抹不掉的记忆完成签到,获得积分10
32秒前
32秒前
余杭村王小虎完成签到,获得积分10
33秒前
韭黄完成签到,获得积分20
37秒前
jeffrey完成签到,获得积分10
37秒前
Rondab应助机灵枕头采纳,获得10
43秒前
佳无夜完成签到,获得积分10
48秒前
摆哥完成签到,获得积分10
52秒前
66完成签到,获得积分10
57秒前
zlqq完成签到 ,获得积分10
57秒前
Hardskills发布了新的文献求助10
1分钟前
1分钟前
之_ZH完成签到 ,获得积分10
1分钟前
gds2021完成签到 ,获得积分10
1分钟前
你好呀嘻嘻完成签到 ,获得积分10
1分钟前
梅特卡夫完成签到,获得积分10
1分钟前
熊雅完成签到,获得积分10
1分钟前
1分钟前
睡到自然醒完成签到 ,获得积分10
1分钟前
cis2014完成签到,获得积分10
1分钟前
独特的大有完成签到 ,获得积分10
1分钟前
量子星尘发布了新的文献求助10
1分钟前
1分钟前
xingyi完成签到,获得积分10
1分钟前
1分钟前
舒心的秋荷完成签到 ,获得积分10
1分钟前
zz123发布了新的文献求助10
1分钟前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038112
求助须知:如何正确求助?哪些是违规求助? 3575788
关于积分的说明 11373801
捐赠科研通 3305604
什么是DOI,文献DOI怎么找? 1819255
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022