鬆弛指數 的英文怎麼說
中文拼音 [sōngchízhǐshǔ]
鬆弛指數
英文
relaxation index-
The dashpot displacement relaxes exponentially.
阻尼器位移按指數關系鬆弛。Numerical stability, the other issue of the lattice boltzmann method, is discussed in chapter 5. corresponding to the uniform and shear background flow, the stability of d2q7 d2q9 and d3ql5 model is analyzed through the von neumann linear stability theory, both the conclusion about the mass distribution parameters, the wave number, the relaxation time and the uniform velocity, and the linear stability criterion n r0. 58 are instructive to numerical simulation of flow
第五章考慮了數值方法另外一個方面的問題，在均勻流和剪切流兩種背景流場下，運用vonneumann線性分析法，針對d2q7 、 d2q9及d3q15格子模型，分析了質量分佈參數、波數、鬆弛時間和平均流速等決定模型穩定性的主要參數對模型穩定性的影響，得到了對流場數值計算具有指導意義的一般性結論與線性穩定性標準n r _ e ~ （ 0 . 58 ） 。According to the double - axis experiment and the uniaxial tension experiment, shear relaxation modulus and bulk relaxation modulus are obtained. fractional exponent models [ 23 ] [ 24 ] [ 25 ] are applied to shear relaxation modulus and bulk relaxation modulus. the theory is proved by constant amplitude cyclic strain experiment
通過雙軸拉壓實驗來確定材料的切變鬆弛模量，單軸拉伸實驗來確定材料的體變鬆弛模量，對這兩種模量均採用分數階指數的形式來進行擬合，再用等應變幅循環歷史的實驗驗證了理論，得到了較好的結果。In order to restrict the displacement of relaxed rock effectively, the factors affecting the efficacy of anchor measures are analyzed according to mechanism of action of anchor. in terms of principle orthogonal design, the influence of parameters of anchor to displacement of excavation slope are elevated by computing using finite element method simulation, and the optimal scheme of anchoring parameters including length of anchors and space between bolts and thickness of shot concrete are defined. finally, the optimal scheme of anchor parameters are determined with considering results of theory analyse and numerical calculation, which provide theory bases for engineering
為了有效防治邊坡開挖后巖體的鬆弛變形，根據錨桿的作用機理對影響錨固效果的主要因素進行分析，並利用處理多因素試驗的科學方法?正交設計原理，以有限元數值計算為手段，以有效約束邊坡開挖位移為標準，評價了錨桿長度、錨桿間距、混凝土噴層厚度等錨固參數對邊坡變形的影響大小和規律，經過比較分析最終提出了錨固參數的優化設計方案，為工程設計提供了理論指導。Most of partial differential equation arising from physical or engineering science can be formulated into conservation form : it directly reflects conservation laws in natural sciences. from viewpoints of fluid dynamics, it can be obtained from the mass, momentum, energy conservation laws. because the form ( 0. 2. 1 ) has no other terms such as dispersion, diffusion ( caused by nonuniformity of some physical states ), reaction, memory, damping and relaxation etc, smoothness of solution of ( 0. 2. 1 ) may be loss as times goes on. even for the smooth inital data, solutions of ( 0. 2. 1 ) become discontinuous in a finite time
由於雙曲守恆律（ 0 . 1 . 1 ）沒有其它項，如色散（ dispersion ） ，擴散（ diffusion ） （某物理量分佈不均勻引起的輸運） ，反應（ reaction ） ，記憶（ memory ） ，阻尼（ damping ）及鬆弛（ relaxation ） （描述非平衡態）等，而僅有輸運或對流項（ convection ） （由於流體的流動引起的輸運）時，守恆律（ 0 . 1 . 1 ）的解失去光滑性（這里不特殊說明守恆律就指該意義下） ，甚至即使光滑的初始數據，解隨著時間的發展會變成不連續，這在物理上表現為激波的形成。Abstract : the change in strength, plasticity and relaxation rate of pc steel strand before and after stabilizing has been analyzed by means of fracture and stress relaxation tests. the effect of treatment parameters and tensile stress on the properties was obtained and optimum parameters of stabilizing treatment were also proposed
文摘:通過對預應力（ pc ）鋼絞線穩定化處理及隨后的破斷、應力鬆弛試驗，分析了處理前後強度、塑性、鬆弛率指標的變化趨勢，得出了工藝溫度、張應力對性能指標的影響規律，進而提出了穩定化處理的最佳工藝參數。分享友人