查询词典 harmonic function

Based on the spherical harmonic functions expansion and finite difference for discretization of transport equation, an inverse power scheme is presented for calculation of the k-eigenvalue problem.

基于球谐函数展开和有限差分离散，给出了中子输运方程的源项反演逼近的反幂算法，该方法的优势是在适当的初值条件下可以显著提高计算速度。

A new finite element method of harmonic balance is presented.

提出了一种新的谐波平衡有限元的算法。

Then an improved design method of resonant tank combining first harmonic approximation and simulation in time domain was proposed.

基于所提出的方法设计的参数建立一台220 W的样机，实验结果证实了所提出改进型设计方法的正确性和可行性。

The time-harmonic responses of the system are first calculated by using an integral formulation of an ideal crack model.

两种不同频域方法的一致结果，证明了理想裂缝模型解的正确性。

The forced vibration of the electromechanical coupled double micro beam under harmonic excitation is investigated further.

进一步研究了机电耦合双微梁在简谐激励作用下的受迫振动规律。

Under the simple harmonic vibration, the stable forced vibration of multiple-degree-of-freedom system is analysed by using ANSYS software.

运用ANSYS软件分析多自由度系统在简谐激励作用下的稳态受迫振动。

"Aura" is an experiment in translating Villa Foscari's Palladian design, which relies on a definite set of harmonic proportions, into a contemporary space whose elegance and dynamism is generated through a process defined by a non-linear set of rules elicited from Palladio's theories.

Aura是扎哈为威尼斯建筑双年展以及纪念帕拉第奥诞辰500周年而设计的。设计尝试将帕拉第奥设计的弗斯卡利别墅的融洽比例转化现代空间的优美且动感，符合帕拉第奥理论的非线性规则。

Several on the use of Fourier transform for harmonic analysis of the code.

详细说明：几个关于利用傅里叶变换进行谐波分析的代码。

By use of time-varying Fourier coefficient series of power system variables, new dynamic phasor models of thyristor-controlled reactor are developed. In this model the higher order harmonic components that have less impacts on dynamic characteristic of TCR are neglected, and through the average operation of time-domain model of TCR, a dynamic phasor state-space model of TCR is derived.

利用电力系统变量的时变傅里叶系数得到晶闸管控制电抗器(thyristor controlled reactor，TCR)的动态相量模型，该模型忽略了对TCR动态特性影响较小的谐波分量，并通过对TCR时域模型的平均运算获得动态相量状态空间模型。

Based on the energy method and Fourier series expansion the general expression of cogging torque was obtained and the harmonic components of cogging torques were analyzed under both ideal and non-ideal conditions.

针对永磁电机中非理想因素对齿槽转矩的影响，基于能量法和傅里叶级数解析方法给出了齿槽转矩的一般表达形式，并分析了理想及非理想条件下齿槽转矩的谐波成分。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。