dimensional sound

Boundary element analysis for two dimensional sound fied

二维声场的边界元分析

At last, the cases of three dimensional surrounding sound systems with cube array and triangular pyramid array models by using these formulas are illustrated for example in this paper.

文中导出了正方排列和正三角梭锥（正四面体）排列两种型式的三维（立体）声系统作为这组公式应用之例。

Calculation of three dimensional steady sound radiation of vibration objects with spline boundary element method

用样条边界元计算振动体的三维稳态声辐射

In this paper, the two dimensional sound field is analysised by boundary element method and numerical formulars are brought out after three different procedures are compared.

本文将边界元法应用于二维声场分析，给出了以第二类汉克尔函数为基本解的数值计算公式，比较了处理奇异积分的三种不同方法。

The aural aspect will move into a new realm of three dimensional sound.

听觉方面会进入一新的三维声音领域.

The resulted sound casting shown that the foundry processes were successful by which dimensional accuracy and sound internal quality can be ensured.

实践证明，这种铸造方法能保证外部形状和内部品质；

Based on H ∞ control theory, the feedforward Active Noise Control ( ANC) model of one dimensional sound field in a duct is presented. The design problem of feedforward controller is transformed into the standard problem of H ∞ control.

本文运用H∞控制理论建立管道内一维声场的前馈式噪声主动控制模型，将前馈控制器设计问题转化为标准的H∞控制问题。

A mathematical analysis of three dimensional surrounding sound field

三维（立体）声场的数学分析