发动机实验室噪声测试与分析+文献综述
关键词：声学；发动机；数据测试与分析；噪声控制
Noise Test & Analysis in Engine Laboratory
Abstract: This paper firstly describes the composition of noise system, structure, working principle; Then introduces the basic principles of noise, characteristics and measurement techniques. Again based on the basic theory of the noise test, some test programs are designed for the engine laboratory, we get access to a large number of measured data by applying the test program into the real-time laboratory testing. Finally, according to test data and by using noise test analysis techniques, we can analyze the sources of the noise and the influence it makes, also we can gain the corresponding conclusions. This complete text show the measurement and analysis of noise in an engine laboratory, thought all these works, my practical ability and thinking skills are enhanced, besides, I can improve my technical work in the field of noise system and the ability & quality of scientific research for future work, laying a great foundation for long-term development of the future work.
KeyWords: acoustics;engine; data test and analysis; noise control
目 录
摘要
Abstract:
1 绪论 1
1.1 引言 1
1.2 噪声分析的现状与前景 1
1.2.1 噪声分析的国内外现状 1
1.2.2 噪声控制的发展趋势 2
1.3 论文内容和结构安排 3
1.3.1 本课题的基本内容 3
1.3.2 论文结构安排 4
1.4 本章小结 4
2 噪声的基本理论 6
2.1 噪声的定义 6
2.2 噪声的特点 6
2.3 噪声的分类 6
2.4 噪声的来源 7
2.4.1 工业噪声 7
2.4.2 交通噪声 7
2.4.3 生活噪声 8
2.5 噪声的危害 8
2.5.1 噪声损伤听觉 8
2.5.2 噪声对睡眠的干扰 8
2.5.3 噪声对语言交流的干扰 8
2.5.4 噪声可引起多种疾病 9
2.6 本章小结 9
3 发动机噪声特性及计算方法 10
3.1 发动机噪声特性 10
3.2 噪声测试理论依据 10
3.3 基本测试方法 10
3.3.1 测试原理 11
4 发动机噪声测试仪器及方法 13
4.1 BSWA805 噪声分析仪简要操作 13
4.1.1 BSWA805 噪声分析仪简单介绍 13