The numerical wave flume is an effective method in wave study and able to simulate the wave motion better while the NS equation is used.
数值波浪水槽是研究波浪问题的有效数值方法,采用考虑流体粘性的NS方程建立数值波浪水槽,能更好的模拟波浪在近岸的运动过程。
Numerical test study about the stability and precision of the method is made by discussing the solution of SH wave motion.
对采用该方法求解点源出平面波动问题时的数值稳定性和精度进行了数值试验研究。
This paper shows that the time discretization makes the lumped-mass method much better than the consistent-mass one as accuracy is concerned for simulating wave motion in the continuous model.
研究结果表明,从模拟连续模型的精度上看,时域离散化使集中质最有限元法优于一致质量法,前者可取较大时间步长。
Numerical examples prove good accuracy of the artificial boundary conditions and wave motion input method, which can be easily used in study of problems of nonlinear wave motion in layered soils.
数值算例表明,所给出的人工边界与波动输入方法具有良好的精度,可以方便地应用于成层地基非线性波动问题的研究。
The results given by the present method are in good agreement with results from the linear wave theory which can not give the history of wave motion.
本文计算结果与线性波理论的结果很一致,但后者不能给出波运动的过程。
A method for predicting the phase spectra of strong ground motion is presented based on the equivalent dispersion of wave motion and the approach for synthesizing ground motions is then studied.
本文在强震地震波频散研究的基础上,进行了强地震动场相位预测方法和多点地面运动时程合成方法的研究。
Based on the acoustic wave equation and structural motion equation, the vibration characteristics from the fluid loaded stiffened cylindrical double shell are studied by using finite element method.
基于流体的波动方程和结构的动力方程,利用有限元方法研究了考虑流固耦合时的双层加肋圆柱壳体的振动特性。
The instability of Muskingum routing method used in the flood inverse routing in river channel was proved by using difference solution of motion wave equation.
基于河道汇流单位线原理,提出了解决河道洪水反向演算的断面流量相关法。
Finally, the method of wave motion input is established.
最后,建立了相应的波动输入方法。
This thesis first introduces five widely-used restoration methods of motion-blurred images, especially the restoration method based on traveling wave equation.
本文首先介绍了五种常用的运动模糊恢复方法,重点介绍了利用传播波方程对匀速直线运动引起的图像模糊进行恢复的方法。
A method of retarded Green function equation of motion is applied to inveti gate the surface spin wave spectrum of Heisenberg ferromagnet.
用格林函数运动方程方法研究了海森堡铁磁体表面自旋波谱。
In chapter two, wave motion equation, sound energy, sound energy flux density, sound intensity and its scaling method and the theorem of two-microphone sound intensity have been introduced.
第二章介绍波动方程、声能、声能流密度、声强及度量方法、双传声器互谱声强测量原理。
The method of generating seismic wave by superposing impulse component and wide band component is used to study the interaction characteristics of near-filed ground motion in this paper.
运用脉冲分量与宽频分量叠加合成地震波的方法,来研究近场地震动的作用特性。
By controling the three-dimensional motion of the X-Y table and bond head, precision positioning and desired line-type gold wires can be realized, and an ultrasonic wave bonded method is used.
工作原理是通过X-Y工作台和焊头的三维运动控制,定位并拉出设定的金丝线型,采用超声波热压球焊方法焊接芯片管脚。
A 1d finite element method in time domain is developed, where the wave motion of free field in elastic half-space by SH wave oblique incidence is simulated.
提出了一种计算出平面SH波斜入射时弹性半空间自由波场时域计算的一维化有限元方法。
By controling three-dimensional motion of the X-Y table and bond head, precision positioning and desired line-type gold wires can be realized, and an ultrasonic wave bonded method is used.
工作原理是通过X-Y工作台和焊头的三维运动控制,定位并拉出设定的金丝线型,采用超声波热压球焊方法焊接芯片管脚。
A 2-d numerical model of wave motion in lock approach channel is described, which is soluted by using the method of resultants of 2-d numerical model of unsteady flow and 1-d numerical model.
提出船闸引航道内水面波动的二维数学模型,采用二维非恒定流数学模型和船闸灌泄水一维数学模型联解。
In this paper, the method is illustrated by an example of the anti-plane wave motion in an elastic layer fixed at its base and acc…
本文将以基底固定的弹性层内的出平面波动为例阐明这一算法,并用一种新的局部透射边界模拟行进波动。
In this paper, the method is illustrated by an example of the anti-plane wave motion in an elastic layer fixed at its base and accuracie…
本文将以基底固定的弹性层内的出平面波动为例阐明这一算法,并用一种新的局部透射边界模拟行进波动。
A 1d finite element method in time domain is developed, which is used to calculate the in-plane wave motion of free field in elastic layered semispace by oblique seismic incidence.
提出了一种弹性水平成层半空间中平面内波动斜入射时自由波场时域计算的一维化有限元方法。
From the Angle of wave motion optics, on the principle of Huyghens, explaining the light of refraction. Simplifying the picture of the light of refraction and then getting a simple drawing method.
从波动光学的角度,用惠更斯原理解释了光的折射现象,根据惠更斯原理所作的折射光线进行简化,得出较为简单的作图方法。
From the Angle of wave motion optics, on the principle of Huyghens, explaining the light of refraction. Simplifying the picture of the light of refraction and then getting a simple drawing method.
从波动光学的角度,用惠更斯原理解释了光的折射现象,根据惠更斯原理所作的折射光线进行简化,得出较为简单的作图方法。
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