recurrence equations造句
例句與造句
- starting from the collins formula, a recurrence equation of hermite-cosine-gaussian ( hcg ) beams propagating through a paraxial abcd system with a hard-edged aperture is derived, from which the analytical propagation expressions for apertured hcg beams of any order can be derived by using the recursive algorithm
從collins公式出發(fā)，推導(dǎo)出了厄米?余弦?高斯光束通過有硬邊光闌近軸abcd光學(xué)系統(tǒng)傳輸?shù)倪f推公式。由遞推公式，借助迭代算法，得出受光闌限制的任意階厄米?余弦?高斯光束的解析傳輸公式。 - based on the theory of stochastic finite element, the structural parameters of frame-shear structure including stiffness and mass and damping are simulated to be stochastic variables . by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame-shear structure . an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame-shear structure . as shown by the results, with regard to frame-shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response . variation of stiffness will cause the response of frame-shear structure to variate greatly; variation of mass shows less effect; and variation of damping shows insignificant effect . the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone
以隨機(jī)有限元理論為基礎(chǔ)，將框剪結(jié)構(gòu)的剛度、質(zhì)量、阻尼等結(jié)構(gòu)參數(shù)為隨機(jī)變量.通過求解隨機(jī)有限元的遞推方程，得到框剪結(jié)構(gòu)各層的地震動(dòng)力響應(yīng)均值和標(biāo)準(zhǔn)差歷時(shí)曲線.分析結(jié)構(gòu)參數(shù)單獨(dú)變異，以及同時(shí)變異對(duì)框剪結(jié)構(gòu)地震響應(yīng)的影響.研究結(jié)果表明,對(duì)框剪結(jié)構(gòu)而言，結(jié)構(gòu)參數(shù)的變異對(duì)響應(yīng)的均值變化影響都不大，主要是增大響應(yīng)的標(biāo)準(zhǔn)差.剛度的變異性將引起框剪結(jié)構(gòu)的響應(yīng)發(fā)生大幅度變異，質(zhì)量的變異性影響稍小，阻尼的變異性影響不顯著.結(jié)構(gòu)各參數(shù)的同時(shí)變異，對(duì)框剪結(jié)構(gòu)地震響應(yīng)的影響，僅比剛度單獨(dú)變異的影響稍大 - It's difficult to find recurrence equations in a sentence. 用recurrence equations造句挺難的