查询词典 pulsating

In the paper, a numerical model is proposed for natural pulsating flow and heat transfer.

本文发展了一种模拟自激脉动流动及对流传热过程的数值方法。

The acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regards to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results.

先将结构的声辐射功率表示为一个正定的厄米特二次型，运用广义特徵值分解求解了复杂结构的声辐射模态，然后利用声辐射模态关于阻抗矩阵与均方速度祸合矩阵的正交性，求解了复杂结构的声辐射效率，最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。

According to the studied results at present, the studied objects are mainly thin plate and beam about sound radiation mode, a method computed sound radiation mode of complex structure is presented in this dissertation, according to the results of the previous two chapter, a theoretical method to solve acoustical radiation mode and acoustical radiation efficiency of complex structure by boundary element method and acoustical radiation theory is posed, the acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regard to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results. According to results of the form three chapter, the structure sound radiation sensitivity is studied in detail, the sound radiation power of structure can be expressed as positive Hermitian quadratic form, the sound radiation sensitivity can be expressed as two parts by partial differential with respect to design variable, which are sensitivity of boundary velocity and impedance matrix, combined with the theory of FEM and BEM, the structure sound radiation can be translated to the analysis of structure dynamic sensitivity and impedance matrix sensitivity. The theory posted in this dissertation is tested by the FEM software ANSYS and the software AAS programmed by author.

在前几章的基础上，通过结构声辐射的模态理论对结构的声辐射的机理进行了深入地探讨，针对目前声辐射模态的研究对象主要是简单的板和梁类结构，提出了一种计算复杂结构声辐射模态的方法，利用前两章研究所得的结论，将边界元方法与广义特征值的理论结合起来研究了复杂结构的声辐射模态与声辐射效率，先将结构的声辐射功率表示为一个正定的厄米特二(来源：ABb7C论文0909网www.abclunwen.com)次型，运用广义特征值分解求解了复杂结构的声辐射模态，然后利用声辐射模态关于阻抗矩阵与均方速度耦合矩阵的正交性，求解了复杂结构的声辐射效率，最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。

This is a pulsating hot spring.

这是一个搏动的温泉。

The effects of high intensity of pulsating electric current are discussed.

计算了脉冲电流作用下，坯料内部各点的磁压强。

The macro temperature rising velocity of powder sample under the influence of high intensity of pulsating electric current are calculated.

提出了坯料在高密度脉冲电流作用下粉坯微观温升的计算方法。

Different types of waves have already been considered. There was the longitudinal wave caused by the pulsating sphere, where the changes of density were propagated through the medium.

我们已经研究过几种不同的波，其中有由圆球的脉动所产生的纵波，它的密度的变化由介质传播。

On the other hand, the mill housing works under pulsating load, so the fatigue damage can take place. With Miner formula and the P-S-N curve of the mill housing, fatigue life is predicted through being programmed in FORTRAN language.

另一方面，由于机架是在脉动载荷下工作，有发生疲劳破坏的可能，本文采用修正的Miner法则，结合机架的P-S-N曲线，通过FORTRAN语言编制程序，预测了机架的疲劳强度可靠性寿命。

For example, the pulsatile tinnitus is named for the type of tinnitus for which the sufferers hear pulsating sounds.

例如，搏动性耳鸣是命名的类型，而耳鸣患者听到脉动的声音。

Love is a feeling that real and pulsating soul!

爱是一种情感的真切与灵魂的那份悸动！

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。