中英
1
stochastic perturbation中文是什么意思
- 中文翻譯
- 造句
- 隨機(jī)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(jī)會的；有可能性的;隨便的。 2.【數(shù)學(xué)】隨機(jī)的。
- a olute perturbation 絕對擾動
- abrupt perturbation 突然擾動
- absolute perturbation 絕對擾動; 絕對攝動
- additional perturbation 附加攝動
- adiabatic perturbation 絕熱擾動
- artificial perturbation 人工擾動
- bed perturbation 河床擾動
- biological perturbation 生物擾動
- canonical perturbation 正則攝動
- cavity perturbation 共振腔干擾; 共振腔微擾
- concentration perturbation 濃度擾動
- conformational perturbation 構(gòu)象干擾作用
- coordinate perturbation 坐標(biāo)攝動
- coriolis perturbation 科里奧利攝動
- current of perturbation 擾動電流; 擾動流; 擾動氣流
- data perturbation 數(shù)據(jù)紊亂
- density perturbation 密度擾動
- dimensional perturbation 尺寸的擾動
- directed perturbation 定向微擾
- disturbance, perturbation 擾動
- drag perturbation 阻力攏動; 阻力擾動
- ecial perturbation 特殊微擾
- environmental perturbation 環(huán)境擾動
- 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(jī)攝動格式并不存在“長期項”的影響。 - 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(jī)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。 - 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(jī)分叉理論，探討疲勞損傷系統(tǒng)裂尖粒子運(yùn)動性質(zhì)突變.利用一維擴(kuò)散過程的奇點理論，并結(jié)合能量包絡(luò)的隨機(jī)平均法，建立了隨機(jī)擾動的疲勞損傷同宿分叉系統(tǒng)裂尖粒子運(yùn)動模型,通過研究奇異邊界的擴(kuò)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(yùn)動的同宿分叉系統(tǒng)受參激白噪聲影響的分叉行為 - 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(jī)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(jī)攝動是一個小量；(2)系統(tǒng)各個隨機(jī)參數(shù)是相互獨立的；(3)系統(tǒng)的隨機(jī)參數(shù)與所受的隨機(jī)激勵是統(tǒng)計獨立的。 - 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(jìn)行線性化，然后采用小波配置法對模型方程進(jìn)行空間離散，最后用隨機(jī)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。 - It is said that the stochastic perturbation method basically could not fulfil the requirement of dynamical random response problems . however, so far in the dissipative systems, this is not the case . thirdly, the unified approach is combined with the orthogonal polynomial approximation
3)將統(tǒng)一解法，與正交多項式逼近方法結(jié)合起來，指出文獻(xiàn)中流傳的采用正態(tài)pdf來描述隨機(jī)結(jié)構(gòu)參數(shù)的缺陷，并先后提出了拱形概率密度與更具有一般性的?pdf模型，并分別與chebyshev多項式逼近、gegenbauer多項式逼近相配合，構(gòu)成了一套具有廣泛適應(yīng)性的解法。
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