A mixed finite element solution for interface problems 界面問題的混合有限元法
Universal finite element solution method of gun barrel dynamic stress 身管動態(tài)應(yīng)力有限元通用求解方法
Finite element solution for deploying problem of cable - member mechanisms 索桿體系機(jī)構(gòu)展開問題的有限元求解方法
But also the convergence and error estimate of the finite element solution are showed 并給出有限元解的收斂性和誤差估計(jì)。
The finite element solutions of natural frequencies of low - finned tube were obtained in four - constraint mode by simulating work condition of tube in heat exchanger 采用共振法對低翅片管在上述四種約束模態(tài)下的固有頻率進(jìn)行實(shí)驗(yàn)測試。
Billy fredriksson . finite element solution of surface nonlinedrarities in structural mechanics with special emphasis to contact and fracture mechanics problems [ j ] . computer and structures , 1975 , 6 : 281 - 290 魯世強(qiáng).三維非線性彈性接觸問題有限元解法及其應(yīng)用[ j ] .南昌航空工業(yè)學(xué)院學(xué)報, 1993 ( 1 )
We construct a superapproximation function un and have proved that at the nodes the c ? finite element solution uh for the equation has following optimal order superconvergence results we also have proved that at some characteristic points in the elements , both uh and uh have superconvergence results 我們構(gòu)造了一個超逼近函數(shù)u _ n ,證明了在節(jié)點(diǎn)處c ~ 0有限元解u _ h有如下超收斂估計(jì)并且已證明了在單元內(nèi)部的一些特征點(diǎn)上u _ n , u _ h有超收斂結(jié)果。
By way of analysis of heat transfer process of the field - test model , the author formulated a 3 - dimensions heat transfer model which is correspondent to actual performance of buried pipe - in - pipe heat exchanger . coupled with field testing data , the short and long term operation features has been thoroughly analyzed by finite element solution and forward finite - difference analysis of the heat transfer differential equations of buried pipe - in - pipe heat exchanger . by interpreting regularity of continuous and intermittent operations of buried pipe - in - pipe heat exchanger , its heat transfer mechanism has been further explained in this thesis 本文通過對試驗(yàn)?zāi)P蜔徇^程的深入分析,建立了與實(shí)際地下埋管換熱器結(jié)構(gòu)參數(shù)相吻合的三維傳熱數(shù)學(xué)模型,通過有限單元法和向前差分法求解相應(yīng)微分方程并對分析結(jié)果進(jìn)行關(guān)聯(lián)耦合,詳細(xì)分析了埋管換熱器的短期和長期運(yùn)行特性,對地源熱泵套管式埋管換熱器連續(xù)運(yùn)行、間斷運(yùn)行規(guī)律進(jìn)行了解析,進(jìn)一步弄清了埋管換熱器的傳熱規(guī)律。
In term of that , the solution result in two different condition is achieved by ansys software . deep research and comparing analysis between the classical solution and the finite element result is made on contact stress & formation and load distribution of conical roller bearings by revised classical formula of elastic contact problems , according to finite element solution in two different interfering conditions 根據(jù)有限元數(shù)值模擬結(jié)果對經(jīng)典解析解中接觸彈性變形量與作用負(fù)荷的關(guān)系進(jìn)行了修正,利用修正過的接觸彈性變形公式對汽車后橋傳動錐軸承的接觸應(yīng)力和變形及負(fù)荷分布規(guī)律在無游隙及負(fù)游隙兩種情況下進(jìn)行研究,并將結(jié)果與經(jīng)典解析解進(jìn)行了對比分析。
In this paper , firstly according to fourier heat conduct ~ quation , the analysical solutions of the temperature field of sfrc pavement structure were obtained and the finite element solutions were soluted by means of galerkin weighed residual methoded . secondly , based on the temperature field , the analysical solutions of the temperature stress of sfrc pavement structure were dissolved with westerguard - bradbury method , and then the finite element solutions were obtained by means of the finite element method . at last , the dynamic response of sfrc pavement plant structure affected by shock load with the finite element method was studied , and the deflection and stress response under shock load was calculated 其次,根據(jù)已求得的溫度場,利用威斯特卡德-布拉德伯利法求解鋼纖維混凝土路面板結(jié)構(gòu)的溫度應(yīng)力的解析解,然后又利用有限單元法對由溫度變化產(chǎn)生的溫度應(yīng)力進(jìn)行求解。最后,作者利用有限單元法分析了鋼纖維混凝土路面板結(jié)構(gòu)在沖擊載荷作用下的動力響應(yīng),計(jì)算了由沖擊載荷引起的撓度響應(yīng)及應(yīng)力響應(yīng)。