viscoelastic deformation 中文意思是什麼
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Investigation of waves behavior in a finite deformation viscoelastic rod
有限變形粘彈性桿的波動行為研究 -
A developed measuring system and test method of green sand properties are introduced. by means of measuring the standard molding sand specimens, the dynamic curves of stress - strain can be quickly and accurately plotted out and several parameters, which represent the characteristics of molding sand, can be tested during the process of compressive deformation. in this brand new method of property measurement two new concepts of viscoelastic parameter and plastic deformation threshold are put forward
介紹了一種研製的型砂性能檢測系統與測試方法，通過對標準砂樣的測試，能迅速、準確地測得砂樣受載過程中的應力應變的動態關系曲線及反映型砂本質特徵的幾項性能參數，這是型砂性能檢測領域中的新探索，其中型砂粘彈性指標及塑性變形臨界值乃是型砂性能方面的新概念。 -
In the paper, viscoelastic theory and ann ( artificial neural network ) are applied to estimate ds and draw the curve of deformation
本文將粘彈性理論和人工神經元網路應用於車轍試驗動穩定度的預估。 -
The specimen of the test was stimulated by viscoelastic model and the wheel load was stimulated by special function, which are brought into viscoelastic equation. after solving the equation, we can work out the theoretical answer. thus we can figure out the ds and the deformation curve
本文應用粘彈性理論研究車轍試驗，應用粘彈性模型模擬車轍試驗的試件，擬合車轍試驗的輪載，帶入粘彈性本構方程，獲得理論解，從而獲得車轍試驗的變形曲線和動穩定度值。 -
Numerical viscoelastic modeling for porphyroclast rotation in ductile shear zones is done by a viscoelastic finite element program based on detailed investigation to three ductile shear zones, the taihangshan mountains, north china. in this model porphyroclast garnet is assumed as isotropic elastic material with small elastic deformation, while the matrix quartz, feldspar as viscous fluid maxwell material which has increasing deformation with time. the viscosity of matrix is supposed to be 10
採用粘彈性力學分析程序對太行山阜平地區剪切帶中斑晶旋轉問題進行了有限元數值模擬。在計算模型中假定：石榴石斑晶為彈性材料，在應力作用下只產生很小的彈性變形石英長石質的基質部分為粘彈性材料，它具有隨時間變形不斷增大的特性。 -
In the paper, by using bp ( back propagation ) method of ann, we can get the relationship between grading, asphalt - aggregate ratio, bulk density, percentage of voids, test temperature and ds. at the same time, we can get the relationship between grading, asphalt - aggregate ratio, bulk density, percentage of voids, test temperature and viscoelastic parameter. at last, we can estimate the ds and draw the deformation curve
本文應用bp人工神經元網路，建立瀝青混合料的礦料通過百分率、瀝青用量、毛體積密度、空隙率、試驗溫度與瀝青混合料粘彈性參數的關系，或建立瀝青混合料的礦料通過百分率、瀝青用量、毛體積密度、空隙率、試驗溫度與車轍試驗動穩定度值的關系，從而預估車轍試驗的動穩定度值和繪制車轍試驗變形曲線。 -
In the positive - issue research of bird impact, the thesis carefully explores the basic theories, finite element numerical method and key techniques of the solution process in ls - dyna3d software system for contact - impact issue of viscoelastic bodies at large deformation. the well - chosen cases examine the accuracy of solutions in ls - dyna3d for large deformation impact issues. under the proof work, the incremental constitutive equation of bilinear and nonlinear viscoelastic materials are derived, coded and verified in ls - dyna3d
在鳥撞正問題的研究中，本文詳細推導了大變形粘彈性接觸-碰撞有限元分析的基本理論、數值計算方法、求解過程、關鍵技術以及上述內容在ls - dyna3d中的具體應用，算例考察了ls - dyna3d在求解碰撞以及大變形問題上的計算精度，同時推導了線彈性材料、雙線性彈塑性材料以及非線性粘彈性材料增量法迭代方程，編制了相應的用戶自定義材料子程序，並進行了子程序驗證。 -
According to the prior achievements, based on pile deformation test data, it puts forward a method that combined the mindlin ' s solution with boussinesq ' s solution to calculate the superimposed stress of djm composite ground, and then uses the superimposed stress to calculate the settlement by layer - wise summation method. by a nonlinear elastic and viscoelastic fem model, based on in - site test data, the back - analysis method of the direct optimal multiple parameters are adopted to calculate the road embankment settlement of typical project
在前人的基礎上，結合樁身應變測試結果，提出了聯合mindlin解和boussinesq解求解攪拌樁復合地基的附加應力的方法，根據計算出來的附加應力再用分層總和法計算攪拌樁復合地基的沉降；採用非線性和粘彈性有限元模型，根據現場實測資料，運用直接優化多參數反演分析方法，對典型工程實例進行了沉降計算對比分析。 -
The stochastic equation of virtual work based on total lagrangian method is developed to analyze the influences of vicoelasticity, large deformation and randomness simultaneously. the nonlinear equilibrium equations of viscoelastic stochastic fem are derived. the full newton - raphson method is used to get the numerical solutions
建立了基於totallagrangian法的隨機虛功方程，能夠同時考慮粘彈性、大變形以及隨機性的影響，導出了非線性粘彈性隨機有限元平衡方程，分析了其具體迭代求解方法。 -
Deformation of preloaded soft ground was calculated with the yin ' s double yield surface model, the viscoelastic - viscoplastic model and the viscoelastic - viscoplastic damage model respectively
結合堆載預壓加固軟基實例，分別採用殷宗澤雙屈服面模型、粘彈粘塑性和粘彈粘塑性損傷模型進行有限元分析。 -
In consideration of the particular structures of concrete dams and their influence on the deformation behavior of the dams, the mathematical and mechanical knowledge, such as gray system theory, fuzzy mathematics, viscoelastic plastic theory, together with the knowledge of dam engineering and structural analysis methods, are introduced into this dissertation, which performs relatively detailed study on the mathematical monitoring model of deformation, the inverse analysis of mechanical parameters of dam concrete and rock foundation, deformation procedure, abnormal symbols and the comprehensive appraisal methods of the deformation behavior of concrete dams with particular structures
本文針對特殊結構混凝土壩的特殊結構對大壩變形的影響，應用灰色系統、模糊數學、粘彈塑性力學等理論，結合壩工理論和結構分析方法，對特殊結構混凝土壩的變形監控模型、參數的反演、變形過程和轉異特徵以及大壩變形性態綜合評價方法等進行了分析研究。
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