inverse element 中文意思是什麼
inverse element
解釋
逆元, 反元-
4. from the point of view of inverse problems in mechanics, two trains of thought for solving ics / ibs computative problems, i. e : by means of intelligence computation method without geometrical modeling and by the aid of finite element inverse analysis method with geometrical modelingare expounded. by comparing these two methods, a feasible, integrated and modularized solution
從力學反問題的角度出發，闡述了智能橋梁結構的智能計算問題的兩種西南交通大學博士研究生學位論文第n頁思路一一無模型力學反問題的計算智能法解決思路以及有模型力學反問題的有限元法解訣思路。 -
The spectral analysis of non - orthogonal functions cannot be obtained by orthogonal integration method. only the spectral analysis of some particular non - orthogonal functions can be realized by integral transformation. thus, the concept of reflection matrix is proposed and the mirror symmetry of spectral analysis for non - orthogonal function is revealed. any element functions whose reflection matrix can be obtained possesses its inverse element function. the spectral vector corresponding to an element function possesses its inverse spectral vector corresponding to the inverse element function. by reflection matrix the mapping relation of element function pair and spectral vector pair can be established. spectral analysis of non - orthogonal functions can be obtained with this symmetry by using the integration method as in the case of orthogonal functions, instead of calculating the inverse matrix as usual. so a convenient and practical method for spectral analysis of non - orthogonal functions is offered
非正交函數不能利用正交積分來實現譜分解.僅有某些特殊的非正交函數可以通過積分變換實現譜分解.本文提出了反射陣的概念，揭示了非正交函數譜分析的鏡像對稱性.任何能夠建立起反射陣的元函數存在著它的逆元函數，並且任何基於該元函數的譜向量同時也存在著基於逆元函數的逆譜向量.元函數對與譜向量對通過反射陣建立映射關系.利用這種對稱性，非正交函數可以象正交函數一樣使用積分方法獲得譜分解結果，而不必使用求解逆陣的方法，從而為非正交函數的譜分解提供了便捷、實用的方法 -
In the second section, we structure a kind of semirings, namely semidirect product of semirings, and prove an isomorphic theorem of semidirect products. in the third section, we give the characterizations of the relations of all kinds of regular semirings and introduce the concept of pseudo - inverse and the necessary and sufficient conditions of pseudo - invertible element. in the fourth section, we define an equivalence relation on the cartersian product of commutative semiring and its multiplicative subset
第二部分，先構造一類半環，半環半直積，然後證明半直積的同構定理第三部分，刻劃了半環各類正則元之間關系，引入偽逆的定義，給出了可偽逆元素的充要條件第四部分，在交換半環和乘法集的卡氏積上定義等價關系，進而構造了一類交換半環：分式半環 -
By means of the finite element inverse analysis, based on stress - strain theoretical equations of the elastoplasticity and viscoelasticity - viscoplasticity, the change of the valley - side margin stress distribution during original state, the condition of human cutting a terrace of building houses in the loess slope, and the condition of cutting the top of loess slope is elucidated
3 .基於粘彈?粘塑性理論的本構方程，運用有限元方法進行反演分析，闡明了宅基邊坡谷緣在天然條件、斬坡建窯條件下和削坡條件下的應力場變化特點。結果表明，谷緣在斬坡建窯條件下拉張應力和剪切應力增大是導致崩塌產生的根本原因。 -
Firstly, finite element model of lathe spindle using finite element technique is established, and supporting bearings are treated as springs, unknown physical parameters and partial vibration displacement make up of new solving vector through using method of combination of academic modeling and experiment, mathematic model of solving stiffness of beating of lathe spindle is established using inverse analysis method of response problem finally
建立了機床主軸的有限元模型，將支承軸承簡化為支承彈簧，通過理論建模與實驗相結合的辦法，將待識別的物理參數和部分振動位移組成新的求解向量，利用響應問題的逆分析方法建立了求解主軸軸承剛度的數學模型。 -
Modified surface spreading four - node element in one - step inverse forming simulation and its application in automobile front fender
局部減縮積分曲面展開單元在某汽車翼子板一步成形模擬中的應用 -
The consistent mass matrix for the assembled element was derived to transform the dynamic equation to the generalized eigenvalues problem that can be solved using the inverse iterative method. moving frequency technique was also adopted in the calculation
本文還推導了組合單元的一致質量陣，將動力學方程轉化為廣義特徵值問題，用逆迭代法求解，並在計算中採用「移頻」技術，對潤揚懸索橋和青馬大橋進行了振動計算。 -
Some stiffness matrices of special elements such as rubber bearings and components with field are derived from primary - secondary and inverse transform in structural matrix analysis. then, seismic response analytical models and non - isolated continuous rigid frame bridges are set up, while considering the interaction of soil - pile - structure and traveling wave effect simultaneously. finally, the seismic time history response of the two models is calculated by means of the finite element method, and the results show that the isolated bridge posses powerful earthquake resistance
首先論述了公路大跨徑橋梁的地震反應分析方法，其中包括樁-土-結構相互作用、行波效應等因素對結構物的影響；其次，利用結構矩陣分析中的主從變換和逆步變換，推演了幾個特殊單元的剛度矩陣，包括橡膠隔震層單元和帶剛域構件單元；最後，考慮樁-土-結構相互作用和行波效應的結合，分別建立隔震與非隔震連續剛構橋地震反應分析模型，通過有限元法對兩種結構進行時程分析，結果表明：隔震層上部結構的地震加速度反應、位移反應均明顯減小，這說明隔震的連續剛構橋具有很好的抗震能力。 -
With a variety of active skin beautifying element of selected natural pearl essence, chlorophyll time - inverse non - trace repair factor and 100 pure aloe oil etc. adopting international advanced nanometer ultra micro powder technology and biological enzymolysis technology, it can perfectly cover face defect and line crack, adjust uneven skin tone, smoothen skin, build up skin transparency, in the meantime, it can resist pollution, improve skin tone, make your skin like crystal and lotus flower
好處：精選天然珍珠精華、葉綠素逆時無痕修復因子、 100 %純蘆薈油等多種活性美膚成份，採用國際先進的的納米超微細粉末技術和生物酶解技術，完美遮蓋面部瑕疵及細紋，調整不均勻膚色，平滑肌膚，締造肌膚透明感的同時，抵抗污染，提亮膚色，令肌膚晶瑩剔透宛如出水芙蓉。 -
It is found mat many factors under working load are different between agitation pile composite foundation and plain concrete pile composite foundation, and analyze the reasons, describe the factors of two composite foundations under working load. the second, the module of the ground consisted of construction garbage is inverse analyzed with finite element analysis. then some mechanics rule of rigid pile ( plain concrete pile ) composite foundation is educed
而對于用粉質粘土填土樁距較小的柔性攪拌樁，樁間土和樁的相對位移很小，樁群和樁間土形成了一個加固整體，應力在樁頂和樁端較集中，大部分的荷載傳到樁端土和下臥層中，起到了很好的擴散荷載的作用。 -
The performance characteristics of hydraulic structures are affected by many external factors. the estimate of their real operating states require the evaluation of many parameters such as the elastic modulus, the damping ratio, the friction coefficient, etc, which are extremely difficult to determine with traditional calculation methods or model test. a solution to overcome the difficulty could to be the combination of mathematical model and inverse finite element analysis based on the observed data
由於水工建築物具有體積大，外界作用因素復雜等特點，採用常規的理論分析和模型試驗方法對其進行計算復核以及安全評價時，往往由於未知因素過多，導致研究結果精度和可信度不理想，因此，利用原型監測資料建立正、反分析模型，以掌握其實際運行狀態和變化規律的方法已在水利工程等諸多領域得到深入發展和廣泛應用。
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