文章提出一种复数方法来求出准稳态周期导热的解。
This Paper suggests a complex number method for solving quasi steady periodic heat conduction.
介绍了准稳态法测量橡胶复合材料热导率的原理和试验装置;
The principle and apparatus for measuring the heat conductivity of rubber composite with the quasi steady state method were described;
根据战斗机大幅值机动运动特点,提出了准稳态运动概念及其设计方法。
The conception of the flight quasi steady state motion and the design method based on it are proposed in the characteristic of the large amplitude maneuvering of the fighter.
对高能量密度激光匙孔焊接过程的二维准稳态传热进行了计算方法的研究。
A numerical method is presented for the two dimensional quasi steady state heat transfer on high power density laser welding processes according to the keyhole model.
实验结果证明在低功率下可以形成稳态孤子,在高功率下可以形成准稳态孤子。
The results indicated that steady solitons can be observed at low optical power, while quasi-steady-state solitons can only be generated at higher optical power.
基于该结构,提出协调控制器设计方法,即准稳态运动和运动解析关系的组合方法。
Based on the structure, the method to design the coordinator is made, which is a combined method from quasi-steady state and analytic relationship of the motion.
对三维准稳态激光重熔问题进行数值模拟,模型考虑了熔池内金属液体的流动和换热。
With the non staggered grids, a three dimensional quasi state laser remelting problem, considering heat transfer and fluid flow, is numerically simulated.
本文对被动锁模固体激光器提出一个把涨落模型和准稳态解析方法结合起来的理论模型。
In this paper a theoretical model for passively mode-locked solid-state lasers is presented, which combines the fluctuation model with the quasi-steady-state analysis.
对变速转子准稳态主动平衡系统,可按一定时间步长把变转速离散成有限个转动角速度。
For a quasi steady-state active balancing system of a speed-varying rotor, according to certain time steps the varying speed of the rotor is discretized into finite constant angular speeds.
理论和实验分析了运用准稳态法测量纳米颗粒悬浮液有效导热系数和比热容等热物性的可行性。
The feasibility of using quasi-steady state method for the measurements of effective thermal conductivity and specific heat of nanoparticle suspension is discussed theoretically and experimentally.
利用椭圆偏振光谱、反射谱、红外吸收谱和准稳态光电导(QSSPC)分析了氮化硅薄膜的特性。
The characterization of SiN thin films was studied by spectral ellipsometry, reflection spectra, infrared absorption spectroscopy (IR) and quasi-steady state photoconductance (QSSPC) measurements.
通过分析理论解,从中得出稳态降深方程、稳态渗流速度方程、准稳态时间方程和理想井间距方程。
Equations of steady drawdown, seepage velocity, quasi steady time and ideal well distance were obtained through analytic seepage equation.
方法:应用全细胞电压箝技术的斜坡脉冲程序,测定离体大鼠心肌细胞准稳态电流-电压关系曲线。
METHODS: The quasi-steady state current-voltage relationship from the isolated rat ventricular myocytes was measured using whole-cell voltage-clamp techniques with a ramp pulse protocol.
在启动初始阶段,无量纲扬程呈现很大值,继而迅速减小到低于准稳态假设值,表现出明显的瞬态效应。
The non-dimensional pump head coefficient tends to become larger than the quasi-steady value at the very beginning of the start, which indicates obvious transient effect.
在凝固准稳态阶段,熔池熔深和半径变化较小,但表面最高温度、熔池流速急剧减小;凝固加速阶段则反之。
At quasi - state stage, the depth and radius of laser pool have small changes, but the highest surface temperature and velocity of molten pool decease rapidly.
认为番茄冻干过程为传热控制,建立了辐射边界的准稳态模型,利用该模型可以较准确的预测升华干燥的时间。
The freeze drying model on the basis of heat transfer processes for tomatoes subject to radiation boundary conditions was founded to predict the time of sublimation dehydration.
弱光放大达到准稳态之后的下降过程为瞬态能量转移的时间指数衰减过程与光散射引起的能量耗散的共同贡献。
The decrease of the amplified light intensity after the steady-state is due to the decreases of the transient energy transfer with time and the energy dissipation caused by the beam fanning.
当交流系统发生三相不对称故障时,忽略直流系统负序分量的准稳态模型将给交直流混合系统的仿真带来较大的误差。
The QSS (Quasi Steady State) model of converter which neglects the negative impedance of DC system will bring some errors when unbalanced fault occurs in AC system.
基于准稳态理论,建立了准稳态量热器,可用于常压下250~400K物质的融解热、固相和液相比热容的实验测量。
A calorimeter based on the quasi-steady state theory was developed to measure the latent heat of fusion and specific heat capacity of substance from 250 K to 400 K at atmosphere pressure.
研究了分流和翘曲变形影响下的不锈钢点焊动态电阻曲线,发现了动态电阻曲线的准稳态电阻值与熔核直径之间的对应关系。
In this paper, the curves of Dynamic Resistance CurveDRCare studied under the influence of shunt and distortion. The relationship between quasi steady resistance value and nugget diameter is found.
本文使用一种新的称之为准稳态热传导的有限元方法,提出了比较精确地计算闪温和本体温度的方法,并通过试验验证了计算结果。
A new FEM, the quasi-stable state heat conduction method, is thus developed. It offers a comparatively high accuracy to calculation, with the results checked up by experiment.
应用计算流体力学(CFD)方法对转动坐标系下的三维环形密封流场进行了准稳态数值模拟,在此基础上进行了转子动力系数的计算。
Three dimensional annular seal flow field was simulated quasi-steadily with computational fluid dynamics (CFD) method in a rotating reference frame. The Rotordynamic coefficients were calculated.
应用计算流体力学(CFD)方法对转动坐标系下的三维环形密封流场进行了准稳态数值模拟,在此基础上进行了转子动力系数的计算。
Three dimensional annular seal flow field was simulated quasi-steadily with computational fluid dynamics (CFD) method in a rotating reference frame. The Rotordynamic coefficients were calculated.
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