| 考虑非均匀流场的管道声学理论及消声器研究 |
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| 引用本文： | 黄其柏. 考虑非均匀流场的管道声学理论及消声器研究[J]. 华中科技大学学报(自然科学版), 1999, 27(8): 2 |
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| 作者姓名： | 黄其柏 |
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| 作者单位： | 华中理工大学机械科学与工程学院 |
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| 基金项目： | 国家“九五”攀登计划资助 |
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| 摘 要： | 研究了考虑非均匀流场的刚性直管声场传递矩阵，通过将刚性直管沿轴向等分成N个微段,并假定每个微段内温度、气流马赫数和声速保持恒定的情况下,利用各微段间声压和体积速度的连续性条件.推导了刚性直管声场传递矩阵和扩张式消声器的插入损失数学模型,并进行了理论计算与声学特性分析.
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| 关 键 词： | 消声器 非均匀流 温度梯度 |
| 修稿时间： | 1998-12-10 |
The Study of Pipe Acoustic Theory and Muffler with Non-Uniform Flow Field |
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| Huang Qibai. The Study of Pipe Acoustic Theory and Muffler with Non-Uniform Flow Field[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1999, 27(8): 2 |
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| Authors: | Huang Qibai |
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| Affiliation: | Huang Qibai |
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| Abstract: | The transmission matrix of rigid straight pipe with non-uniform flow is studied. By dividing the rigid straight tube into N segments, the temperature, gas Mach number and velocity of sound can be assumed to be invariable. The transfer matrix of the rigid straight pipe and the insertion loss model of expand silencer are established utilizing the continuity condition of pressure and the volume velocity between the boundary of adjacent elements. The theoretical calculation and acoustical property is analyzed. |
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| Keywords: | silencer non uniform flow temperature gradient Huang Qibai Prof |
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