[1]陈效华,魏少华,常思勤,等.微型车表面声强特征的试验研究[J].南京理工大学学报(自然科学版),2006,(02):223-226.
　CHEN Xiao-hua,WEI Shao-hua,CHANG Si-qin.Test Research on Sound Intensity Characteristic of Minibus Surface[J].Journal of Nanjing University of Science and Technology,2006,(02):223-226.
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微型车表面声强特征的试验研究
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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2006年02期
页码:
223-226
栏目:
出版日期:
2006-04-30

文章信息/Info

Title:
Test Research on Sound Intensity Characteristic of Minibus Surface
作者:
陈效华;魏少华;常思勤;
南京理工大学机械工程学院, 江苏南京210094
Author(s):
CHEN Xiao-hua; WEI Shao-hua; CHANG Si-qin
School of Mechanical Engineering,NUST,Nanjing 210094,China
关键词:
微型车;  声强;  特征;  试验
Keywords:
m inibuses;  sound intensity;  character istics;  tests
分类号:
U 463. 51. 07
摘要:
该文为整车降噪的前期工作,从分析声强测量技术的原理出发,有针对性地选择微型车表面声强的测量条件、测量方法,分析了测量过程与结果。利用声强叠加原理,合成每一测点的总声强,并通过表、图点、等声强线等方法对车身表面声强进行描述;根据测量结果,分析了引起微型车表面噪声的原因,分离出引起车外噪声的主噪声源;根据分析结果,最后提出了降低微型车车外噪声的方法和途径。
Abstract:
Th is is the priorw ork of the automob ile no ise reduction. The test principle o f SI ( sound intensity) technology is ana lyzed and the test cond it ion and themethod o f the m in ibus surface SI are chosen. The test process and results are analyzed. By using the addit ive princ iple of SI, the whole S I of the sing le test po int is composed. By the methods of table, f igure and contour, the surface SI is expressed. A ccord ing to the test results, them in ibus no ise cause is analysed, and the main no ise sources are separated. The techn iques of reducing them inibus surface noise are given.

参考文献/References:

[ 1] Frank P M. Fault d iagnosis in dynam ic systems using analytica l and know ledge based redundancy: a survey and new results[ J]. Autom atica. 1990, 26: 459- 474.
[ 2] 蒋孝煜, 连小珉. 声强技术及其在汽车工程中的应 用[M ]. 北京: 清华大学出版社, 2001.
[ 3] 王建明. 声强测量技术在汽车噪声测试中的应用 [ J]. 世界汽车, 1999, 9: 13- 15.
[ 4] 邓兆祥, 徐滇. 汽车噪声声强测试分析系统的研究 与开发. 汽车工程, 1994, 16( 5): 283- 290.

相似文献/References:

[1]陈效华* *,魏少华,常思勤,等.基于声强识别的发动机智能化故障诊断系统[J].南京理工大学学报(自然科学版),2005,(01):26.
　CHEN Xiao-hua,WEI Shao-hua,CHANG Si-qin,et al.Intelligent Fault Diagnosis System Based on Sound Intensity Recognition for Engine[J].Journal of Nanjing University of Science and Technology,2005,(02):26.
[2]余根生,欧阳普仁,王拴虎.应用近场声强预测振动能量分布[J].南京理工大学学报(自然科学版),1996,(03):261.
　Yu Gengsheng,Ouyang Puren,Wang Shuanhu.Applied Nearfield Sound intensity Measurement to Find the Distribution of Vibration Energy[J].Journal of Nanjing University of Science and Technology,1996,(02):261.
[3]魏少华,陈效华,常思勤,等.微型车车外声强测试影响因素分析[J].南京理工大学学报(自然科学版),2006,(03):288.
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备注/Memo

备注/Memo:
基金项目: 南京理工大学青年学者基金( n just200202) 作者简介: 陈效华( 1966- ), 男, 江苏淮阴人, 副教授, 博士, 主要研究方向: 发动机智能化故障诊断, E-ma il: cxhua@ ma il. njust. edu. cn。
更新日期/Last Update: 2006-04-30