摘要
提出了以分布源边界点法作为声场的全息变换算法,建立了基于分布源边界点法的声全息重建和预测的数学模型。与基于边界元法的声全息重建和预测模型相比,此法避开了变量插值、数值计算和奇异积分的处理,具有计算速度快、计算精度高、计算稳定性好和简单易懂等优点,因此在工程实践中有着广泛的应用前景。
The distributed source boundary point method (DSBPM) is proposed to be a transform algorithm of nearfield acoustic holography (NAH). The models to reconstruct and predict the acoustic quantities of acoustic field are established. Compared with the boundary element method (BEM) based NAH, the variable interpolation, the numerical calculation and the disposal of singular integral are avoided in this method. And it has such merits as follows: the quick calculation speed, the high calculation precision, the good calculation stability, and the simple and pellucid calculation procedure. So it has a good prospect of application in engineering field.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2003年第8期81-85,共5页
Journal of Mechanical Engineering
基金
国家自然科学基金(50275044)
高等学校博士学科点专项科研基金(20020359005)
安徽省自然科学基金(00047418)
