By means of lumped parameter method a reciprocating compressor model and a thermostatic expansion valve model are set up 采用稳态效率法建立了全封闭活塞式压缩机的质t流t 、输入功率的数学模型。
A special critical parameter method was used to derive the approximate expression of the second upto sixth virial coefficient at critical temperature 3采用一种特殊的临界参数法导出了第二至第六维里系数在临界温度下的近似表达式。
The analytical and numerical solutions of the established mathematical model have been achieved . in the whole paper , two - parameter method is employed to calculate the coefficient of subgrade reaction or subgrade modulus 本文将双参数法引入到土抗力模数或地基系数的计算中,并贯穿到整个结构计算中。
Using the double set parameter method we have constructed several finite elements which are convergent for this problem , and the numerical tests that we have made have proved the efficiency of these elements 我们应用双参数法构造了几个对此问题收敛的有限元。数值实验也验证了这些新有限元对此问题的有效性。
In the last two sections , author sets up the non - parameter method models of measuring the production efficiency employing frontier production function under the conditions of input unvaried and output unvaried respectively 本章后两节分别建立了两种路径下即基于投入和基于产出的前沿生产函数测度生产效率的非参数方法模型。
The lcc model is built . after analyzing the composition of the lcc , the model is created by using parameter method and engineering method . a new concept , cost per hour , is presented 通过对寿命周期费用组成的剖析,逐一分析了各组成的含义,采用小时费用的新概念,用参数法和工程估算法建立了寿命周期各费用组成的计算模型。
In this paper several new finite elements are constructed for differrent kinds of probelms by the double set parameter method and their classical and anisotropic convergences are analyzed 本文应用双参数法针对不同问题构造了几个新的有限元,分析其经典收敛性及各向异性收敛性;也分析了几个著名元的各向异性收敛性,并进行了大量的数值试验。
Recently professor shi , dongyang etc . have constructed a new 9 parameters triangular element and a new 12 parameters rectangular one by introducing bubble functions and double set parameter method [ 2 ] . it is proved that they are convergent to ( 1 . 0 ) 石东洋教授等通过引进bubble函数和双参数技术构造了新的9参三角形元和12参矩形双参数元,我们分析了其对( 1
A separated - parameter method is proposed to calibrate the structure parameter . a vanishing line method is proposed to calibrate the normal vector of light plane and invariability of cross - ratio is proposed to calibrate the baseline length 并提出一种参数分离的方法对传感器进行了标定,采用消隐线法标定激光平面的法矢量,利用交比不变原理标定激光平面的基线长度。
Different from previous methods , litter parameter method is used for analyzing the characteristic of coupled vibrations . and the analytical results are validated through numerical simulation . mass unbalance is necessary condition of coupling 与以往分析方法不同,本文利用小参数法对弯扭耦合振动解析解进行了理论分析,并通过数值仿真手段验证了理论分析结果。