Research on the reconstruction of the vibro-acoustic field generated by the complicated sources using the modified wave superposition algorithm
Research on the reconstruction of the vibro-acoustic field generated by the complicated sources using the modified wave superposition algorithm
复制标题
修正波叠加算法重构复杂声源振动声场的研究
DOI：
10.1243/09544062jmes1052
复制
发表时间：
2009-02
影响因子：
2
通讯作者：
Jiang, W. K.
中科院分区：
文献类型：
--
作者：
Huang, Z. Y.;Zhang, H. B.;Wan, Q.;Jiang, W. K.
摘要基于波叠加算法(WSA)的近场声全息(NAH)方法假定声场是由振动体边界内的一系列简单声源引起的。在以逆过程确定虚拟声源的强度之后，可以重建声场。基于WSA的NAH的理论、数值模拟和应用往往涉及到简单的源。在实践中，振动对象更加复杂，有时甚至应该将其视为多个分离的对象。直接使用传统的基于WSA的NAH重建声场并不令人满意。在提出的改进的基于WSA的NAH中，复杂的振动对象被分成几个部分，并被视为独立的分量。整个声场是由所有这些组件产生的。通过数值模拟对传统NAH和改进的基于WSA的NAH进行了比较。结果表明，将改进的基于小波分析的NAH方法应用于复杂目标，可以得到更准确的结果。以一台复杂结构的压气机为例，验证了改进的基于WSA的NAH算法的有效性。
Abstract The nearfield acoustic holography (NAH) method based on the wave superposition algorithm (WSA) assumes that the sound field is induced by a series of simple sources inside the vibrational object boundary. The sound field can be reconstructed after the strength of virtual sources is determined in an inverse procedure. The theory, numerical simulation, and application of WSA-based NAH is often concerned with the simple sources. In practice, the vibrational objects are more complicated and sometimes should even be treated as multiple separated objects. The reconstruction of a sound field by using conventional WSA-based NAH directly is not satisfactory. In the presented modified WSA-based NAH, complicated vibrational objects are separated into several parts and looked at as independent components. Whole sound fields are generated by all these components. The comparisons between conventional and modified WSA-based NAH are carried out through numerical simulations. It shows that the more accurate result is obtained by applying the modified WSA-based NAH to the complicated objects. An experiment of a compressor with complicated structures is conducted to illustrate the validity of modified WSA-based NAH.
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DOI：
10.1121/1.2133717
发表时间：
2006-01
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
Moohyun Lee;J. Bolton
通讯作者：
Moohyun Lee;J. Bolton
DOI：
10.1121/1.1404381
发表时间：
2001-10
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
E. Williams
通讯作者：
E. Williams
影响因子：
2.4
作者：
Jacobsen, Finn;Jaud, Virginie
通讯作者：
Jaud, Virginie
影响因子：
2.4
作者：
JEANS, R;MATHEWS, IC
通讯作者：
MATHEWS, IC
影响因子：
2.4
作者：
MAYNARD, JD;WILLIAMS, EG;LEE, Y
通讯作者：
LEE, Y