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stochastic perturbation中文什么意思

發(fā)音:   用"stochastic perturbation"造句
  • 隨機擾動
  • perturbation:    n. 1.慌張，動搖；混亂。 2.狼狽，不安，焦慮。 3.引起不安[混亂]的事物；引起動搖的原因。 4.【天文學(xué)】攝動；【物理學(xué)】微擾。 adj. -al
  • stochastic:    adj. 1.機會的；有可能性的;隨便的。 2.【數(shù)學(xué)】隨機的。
  • a olute perturbation:    絕對擾動
  • abrupt perturbation:    突然擾動
  • absolute perturbation:    絕對擾動; 絕對攝動
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  1. the application of stochastic perturbation method to viscoelastic problems does n't result in the emergence of undesirable secular terms although the viscoelastic constitutive relation is time-dependent
    盡管粘彈性本構(gòu)關(guān)系具有時間相依性，其隨機攝動格式并不存在“長期項”的影響。
  2. as 4ws system is a typical system with stochastic perturbations, which are from the road surface unevenness and side wind and ca n't be described by deterministic function, the probability and statistics theory must be used in such research
    由于汽車四輪轉(zhuǎn)向系統(tǒng)是典型的一個存在隨機擾動的系統(tǒng)，振源主要就是路面的不平度和地面的側(cè)風(fēng)，這類擾動不能用確定性的時間或空間函數(shù)去描述，只能用概率統(tǒng)計的方法去研究。
  3. by virtue of the stochastic bifurcation theory, the transition of the atom movement at a crack tip in fatigue damage system is investigated . using the singular point theory of one-dimensional diffusion process and the stochastic averaging approach of energy envelope, a micro-model to describe the atom movement at the crack tip in homoclinic bifurcation fatigue damage system, which is in the presence of stochastic perturbation, is established . after the study on the characteristic of the diffusion exponent, the drift exponent and the character exponent of the fatigue damage diffusion process on singular boundary, the bifurcation behavior of a homoclinic bifurcation fatigue damage system, which is in the presence of parametric white noise, is examined
    采用隨機分叉理論，探討疲勞損傷系統(tǒng)裂尖粒子運動性質(zhì)突變.利用一維擴散過程的奇點理論，并結(jié)合能量包絡(luò)的隨機平均法，建立了隨機擾動的疲勞損傷同宿分叉系統(tǒng)裂尖粒子運動模型,通過研究奇異邊界的擴散指數(shù)、漂移指數(shù)以及特征指數(shù)特性，考查疲勞損傷裂尖粒子運動的同宿分叉系統(tǒng)受參激白噪聲影響的分叉行為
  4. secondly, the response problem of a random structure under evolutionary random excitation is solved by the stochastic perturbation method combined with the unified approach . our derivation is based on the following three indispensable assumptions : 1, the random perturbations must be small fluctuations; 2, the random parameters of the system are mutually independent; 3, the random parameters and the random excitation are mutually independent too
    2)將統(tǒng)一解法與隨機攝動法相結(jié)合，推導(dǎo)中采用了三個不可或缺的假設(shè)：(1)隨機攝動是一個小量；(2)系統(tǒng)各個隨機參數(shù)是相互獨立的；(3)系統(tǒng)的隨機參數(shù)與所受的隨機激勵是統(tǒng)計獨立的。
  5. in this method, a new perturbation technique called linearization-correction method was used to linearize the nonlinear equations in the model, and then the wavelet precise integration method was used to calculate the sensitivity of the response . at last the stochastic perturbation method is used to analyse the variance and expectation of sediment concentration, rate and depth of flow . the calculated result was high agreement with that result of monte carlo method
    在該方法中，采用了一種擬攝動法對模型中的非線性方程進行線性化，然后采用小波配置法對模型方程進行空間離散，最后用隨機有限元方法求得模型中水流速度，水深和泥沙濃度的統(tǒng)計特性，計算結(jié)果和montecarlo法模擬結(jié)果吻合得很好。

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