contacting element 中文意思是什麼

Finite element method could not only obtain all the same stress of interference fit joint under ideal model as that obtained with elastic mechanics method, but also could analyze the contacting edge effect - edge stress concentration caused by con - tact, which could not be solved by elastic mechanics

有限元方法不僅可以獲得與彈性力學完全一致的理想模型下過盈聯接的應力等，還能夠分析彈性力學所不能求解的接觸邊緣效應?由接觸引起的邊緣應力集中。

In this paper, the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment, the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state. at last, the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method

本文採用無預裂紋和帶預裂紋環狀缺口圓柱形試樣，進行了石化焦炭塔設備常用材料16mnr多維應力狀態下不同缺口形式的高溫低周疲勞總壽命試驗及裂紋擴展壽命試驗，並利用有限元程序對試樣缺口周圍及裂紋尖端附近進行了軸對稱多維應力狀態下的應力、應變場分析，來評價材料不同條件下的高溫低周疲勞總壽命和裂紋擴展壽命，最後利用最小二乘回歸方法，得到了該材料高溫低周疲勞總壽命和裂紋擴展壽命評價方程。

Secondly, in view of the limitation and shortage of traditional simulation of finite element approaches for bolt, a new composite grouted bolt element including nonlinear contacting relation will be built based on the above study of the mechanics mechanism of fully grouted bolt. then, an elastic - plastic finite element program will be developed for the analyses of tunnel stability, in which the composite grouted bolt element and nonlinear finite element analysis method will be used ; the patterns and the affect of main design parameters on the support effect of bolt will be analysed using the program, and conclusions of guidance importance for tunnel support design will be drawn. finally, simulation compution for the excavation and support of a highway tunnel will be made out using the above production, and the method of application of the program will be discussed ; analysis of the deformation, stress and distribution of plastic range will be done, and rational support plan will be worked out, which is of guidance importance for tunnel support design and the thery and technique of fully grouted bolt used in tunneling will be perfected further

首先，本文在綜合分析隧道穩定性影響因素及失穩破壞模式的基礎上，對全長粘結式砂漿錨桿作用力學機理進行了深入研究，為全長粘結式砂漿錨桿的有限元模擬分析奠定了基礎;其次，針對傳統錨桿有限元模擬方法的局限性與不足，在上述全長粘結式砂漿錨桿作用力學機理研究基礎上，建立出能反映界面非線性粘結的新型復合砂漿錨桿有限單元模型;然後，運用上述復合砂漿錨桿單元模型，引進非線性有限元分析手段，開發了隧道支護穩定性分析的有限元程序，並就全長粘結式砂漿錨桿的型式與設計參數對支護效果的影響進行了深入探討，得到了對隧道支護設計具有指導意義的結論;最後，運用本文研究成果對某公路隧道工程實例進行了開挖與支護的模擬計算，探討了其應用方法，並就隧道變形與應力及塑性區分佈規律進行了分析，從而提出了合理的支護方案，為隧道支護設計提供了參考依據，完善了隧道全長粘結式砂漿錨桿支護的理論與方法。

During construction procedure, the stressing of diaphragm beams " tendons and the tensioning of cables interact, the contacting nonlinear issues between girder and form plate etc, which require detailed analysis, arrange the orders and quantities of the stressing of the cables and tendons properly, and guide the construction. the paper, by making plane model and spacial model of yongan bridge, calculated the pre - closure cable forces ( aim forces ) with plane element program, with the help of applied structure analysis program - ansys, acquired the reasonable construction steps of tensioning of tendons and cables

本論文採用自編平面桿系施工裝配計算程序和大型結構分析程序- ansys ，通過分別建立該橋的平面和空間模型（含模板的作用模擬） ，由平面桿系程序倒拆出斜拉索合攏前的索力（目標索力） ，利用ansys結構分析程序，經過多次的施工過程模擬計算之後得出達到目標索力的合理的施工步驟。

Numerical simulation of electromagnetic field by the finite element and boundary element methods in the soft - contacting billet mold

應用有限元和邊界元法計算方坯軟接觸結晶器的電磁場

Their contacting mechanism included benefit - allocate - mechanism, driving - mechanism and information - conduct - mechanism, the progress of the system is restricted by many factors out of it, such as condition and backdrop, element education, eastern and central area of china, other industry in the west, institution, etc. the second part : current situation and developing direction of agriculture and agro - economy in die west of china, hi this part, analyzed the importation of agriculture and agro - economy in the west of china within all countrywide, contrast agricultural production structure and agro - economic index of every provinces within west of china, collected many scholar or researchers1 references about agriculture and agro - economy in the west of china

農科教是一個有機的整體，本文將農科教系統分為農業經濟、農業教育和農業科技三個子系統，人力資源是三個子系統的聯系紐帶。農科教系統內部的協調機制包含利益分配機制、動力機制和信息傳導機制，西部農科教系統的發展受到形勢與背景、西部的基礎教育、東中部地區經濟、西部其他產業的發展和制度等因素多種因素的制約。第二章：西部農業與農業經濟現狀及其發展趨勢。

Method of force bearing analysis and finite element analysis on contacting state of tooth surface for new typed fa planetary transmission of cycloidal needle - wheel

新型擺線針輪行星傳動受力分析方法與齒面接觸狀態有限元分析