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recurrence equation中文是什么意思

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  • 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
    从collins公式出发,推导出了厄米?余弦?高斯光束通过有硬边光阑近轴abcd光学系统传输的递推公式。由递推公式,借助迭代算法,得出受光阑限制的任意阶厄米?余弦?高斯光束的解析传输公式。
  • 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
    以随机有限元理论为基础,将框剪结构的刚度、质量、阻尼等结构参数为随机变量.通过求解随机有限元的递推方程,得到框剪结构各层的地震动力响应均值和标准差历时曲线.分析结构参数单独变异,以及同时变异对框剪结构地震响应的影响.研究结果表明,对框剪结构而言,结构参数的变异对响应的均值变化影响都不大,主要是增大响应的标准差.刚度的变异性将引起框剪结构的响应发生大幅度变异,质量的变异性影响稍小,阻尼的变异性影响不显著.结构各参数的同时变异,对框剪结构地震响应的影响,仅比刚度单独变异的影响稍大
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Last modified time:Tue, 12 Aug 2025 00:29:56 GMT

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