problem of contact 中文意思是什麼
problem of contact
解釋
接觸問題-
Liao ri - dong, zuo zheng - xing, zou wen - sheng. finite element analysis of the axial symmetric hyperelastic contact problem of the o rings [ j ]. lubricate and sealing, 1996 （ 5 ） ： 3034
廖日東，左正興，鄒文勝. o形圈對稱超彈性接觸問題的有限元分析[ j .潤滑與密封， 1996 （ 5 ） ： 3034 -
Nevertheless, in these approaches the contact intethee are charactered sboly ed stiffeess k. and k. " which is not perfect and rigorous in thc vitw of solid mechanics and rather rough for the description of the behavior of the idtfores. in collbet, taken as a contact problem, the principal chatrs of the idtcthees can be reflected : ( l ) the cbntact inifore is of shear strength which implies tha a generic pair of contact points on the inidse will displace coincidentally if the tangential fbrce at this point has not reahed the 1imit resistance, else, relative s1ide betwee the points will occur along the tangental direction. ( 2 ) no matter the relative slide occurs or not, the contact bodies cannot invade each other in any wise
本論文在對這兩種方法進行認真的分析后，說明它們對不連續面的描述並不合理，也無法反映出不連續面的主要力學特性，同時指出，將帶有不連續面的巖土工程問題作為接觸問題計算更為合理，它可將不連續面受力變形的主要特點反映出來，即： （ 1 ）接觸面具有相應的「抗剪強度」 ，即當接觸面上某一點處的切向應力小於該點處的抵抗強度時，點對共同變形；達到強度時，則沿切向發生相對滑動； （ 2 ）在整個變形過程中，發生接觸的變形體不能相互侵入。 -
The problem of how to contact the u-boat on monday had been nagging at the back of his mind.
星期一如何與潛水艇聯系呢？這個問題一直在他頭腦中盤旋。 -
The programme can solve two - dimensional stresses, strains and axial symmetry problems with different yield criteria. a satisfying solution has been put forward to the contact boundary between reinforcements and soil. the special problem of two contact plane elements at the joint between plate and strip has been solved
該程序能同時考慮平面應力、平面應變和軸對稱問題，並能運用不同的屈服準則，使其更具有通用性和適用性，成功地解決了筋材與土介質界面的接觸問題，較好地解決了墻面板與筋帶連接處出現兩個接觸面單元的特殊問題。 -
On the condition of “ many - head ” and “ small drive ratio ” ， the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously. it has devoted to a new type hourglass worm _ sphere double enveloping hourglass worm. the coordinate system is established according to the frock. the meshing equation and the tooth equation of worm and gear have been developed and the distribution of contact line on gear tooth is analyzed. to evaluate the meshing quality ， four meshing quality indexes and five original parameters are put forward. through mass programming computing ， the relations between meshing quality and original parameters are derived and depicted by graphs
考慮到平面二次包絡環面蝸桿傳動在多頭小傳動比條件下根切與齒頂變尖的矛盾很難同時解決且嚙合性能較差，介紹了一種新型環面蝸桿傳動? ?球面二次包絡環面蝸桿傳動.在研究過程中，根據工裝建立了坐標系，根據一二包過程的運動關系推得了嚙合方程和蝸桿與蝸輪的齒面方程，分析了蝸輪齒面上的接觸線分佈.為了評價嚙合性能，提出了4項性能指標和5項原始參數，通過大量編程計算得到了嚙合性能指標與原始參數之間的關系，並以圖表直觀的表示 -
Fe analysis of contact problem for laying wire rope
鋼絲繩捻製成形接觸問題的有限元分析 -
Utilizing the method of transient can solve the harmonic problem which include the features of contact. this is a new attempt
利用瞬態分析法來解決含有接觸等非線性特性的諧響應問題，這是一種新的嘗試。 -
On the one hand, according the design principle of torque sensor, this paper researched the non - contact torque sensor, which base on the theory of electric resistance strain and the rotation transformer and could satisfied the request of our project as well as the condition of the producing process. on the other hand, the modulation method of torque signal has been solved before the signal was input to the industry computer, therefore, solved the problem of signal transfers
其次，研究和研製了扭矩在線測試工作所需要的儀器硬體。一方面，根據扭矩傳感器的設計原理，研製了滿足課題要求和生產現場條件的，基於電阻應變理論和電感集流環的非接觸型扭矩傳感器；另一方面，制訂了扭矩信號在輸入工業計算機之前的調理方法，解決了信號傳輸問題。 -
At the area of high temperature at the bottom of dryer, thermal sensitive material does not contact with hot surface. it solves coking and discoloring problem of thermal sensitive material
在乾燥機底部高溫區，熱敏性物料不與熱表面直接接觸，解決了熱敏性物料的焦化變色問題。 -
In the prc insurance law, it only prescribed the concept of double insurance, which can not settle the problem of how to abide by the principle of compensation for the damage when several insurance contact exist simultaneously
我國保險法只規定了重復保險，無法解決數個保險合同同時存在時，如何遵守損害補償原則的問題，因此有必要引入保險競合概念，在保險法修改時填補這一空白。 -
It directly affects the engine ' s working reliability whether it ' s good or not. according to the past method, piston can only be decided whether it meets the need of engineering in test after it has been turn out. this paper simulates the real working condition of piston by combining the ked method and fe - contact analysis way. it reflects deforming rule of piston, and makes it possible that the structure problem of piston skirt can only be found during the design period, so the cost of developing new product is lowered and the time is shorted. this paper proves that the thought is practical and the result of simulation to piston lr4100 is in accord with practice
活塞裙部形線是活塞的關鍵結構之一，它的好壞直接影響發動機工作可靠性，以往的判定方法只有在活塞加工完成後，才能通過實驗方法判定設計，能否滿足工程實際的需要，本文通過ked方法與有限元接觸方法的結合，模擬實際活塞工作情況，較為準確的反映出，活塞裙部的變形規律，在設計階段發現活塞裙部的設計結構問題，節省新產品開發成本，縮短開發周期。 -
If we can accurately ensure the rigidity coefficient, the result of mathematic analysis method can approach the fact accurately by applying contact mechanics theory, we can deal with the lining and lining as contact problem of two bodies. using pretension bolted solid finite element simulate bolt at linings. thus not only considers perpendicular rigidity but also considers the tangent contact rigidity
（ 4 ）通過運用接觸力學的理論，將管片與管片的接頭抽象成為兩個體與體的接觸問題，在管片處的螺栓採用有限元中的實體螺栓預緊單元進行模擬，這樣不但考慮了管片與管片處的法向剛度接觸而且考慮了管片與管片間的切向接觸剛度。 -
The gap element method is proposed in the paper for two kinds of problems, which include contact problem and gap joint problem. elasticity contact problem falls into the category of unknown boundary value problems. it follows that the contact area and contact conditions or states ( st
文中給出了間隙元法在空間可動部件接觸問題中的應用，推導了其幾何邊界條件和力學邊界條件，利用虛功原理推導了含間隙元彈性接觸問題的有限元方程式，給出了其數值解法的迭代步驟，並指出了利用間隙單元進行分析的特點。 -
The direct analysis method has more efficient than the line programming for the shakedown analysis of contact surface layer, therefore, the mentality of shakedown analysis of contact surface layer was introduced based on the direct analysis method as follows : first, the direct method for shakedown analysis was presented and its application to a two - dimensional rolling / sliding contact problem was demonstrated. the direct method consists of operator split technique, which transforms the elastic - plastic problem into a purely elastic problem and a residual problem with prescribed eigenstrains, and an incremental projection method to determine the eigenstrain
這些方法各有創新，其特點是計算速度快、收斂性好及精度可靠，計算規模避免了彈塑性隨動強化分析的非線性的影響，並使彈塑性問題轉化為殘余問題和線彈性問題，適用於滾動、滾滑及滑動接觸失效分析，從而有效地解決了接觸體安定性分析與裂紋萌生壽命預測的實際問題，也是本文對表面強化接觸失效的安定分析成為可能。 -
Abstract : in this paper, first fe simulation algorithms for contact search, contact constraint, and the calculation of contact and friction loads were established based on the analysis for contact friction problem in sheet metal forming. then the fe simulation model for contact friction problem in sheet metal forming was set up. at last, the efficiency & amp; stability of this model was proved to be satisfactory by the comparing numerical example and experiment results of skin stretch forming
文摘:本文在分析了板料成形過程接觸摩擦問題特點的基礎上，提出了接觸搜索、界面滑動約束、法向接觸力以及摩擦力計算等問題的有限元模擬演算法，建立了板料成形過程接觸摩擦問題的有限元模擬模型，最後通過數值算例與飛機蒙皮拉形模擬試驗結果的比較，驗證了此模型計算精度及數值穩定性良好。 -
The combined seal is a new style of non - contact sealing. it solves the problem of big clearence of labyrinth sealing, improves the sealing performance and reduces oil consumption and therefore ensures the long run of equipments
這種組合密封方式是一種新型非接觸式密封形式，解決了以往迷宮密封間隙過大的問題，提高了密封性能，減少了甩油量，從而從根本上保證了設備長期運行。 -
The finite element analysis method based on contact problem is a numerical algorithm used for solving contact problem of connection interface, which is developed from the general fem. this method is a combination of elasticity theory and fem, also it is an important aspect of computational structure mechanics
考慮接觸問題的有限元分析法是在傳統的有限元法基礎上發展起來的處理連接面接觸問題的一種數值計算方法，它是彈性力學基礎理論與有限元方法相結合的產物，是計算結構力學的一個重要分支。 -
A general matlab program for computing the 3 - d frictional elastic contact problem by boundary element method is compiled. the wire race - ball advancing contact problem is numerically calculated, the 3 - d distribution of contact stress and deformation is plotted and the evolvement of contact area is given
採用matlab語言編制了三維摩擦型彈性接觸問題的通用邊界元程序，對鋼絲滾道?鋼球擴展型接觸問題進行了數值計算，得到了接觸應力和接觸變形的三維分佈以及接觸區域的大小。 -
It emphases the selection of secondary voltage of the step - down transformer, the control and protection of thyristor, the calculation of compensation capability and group capability, the technique of cross - zero switched on / off capacitors or reactor, the solution of avoiding possible resonance in switching on / off groups of capacitors or reactor and the measure of the best time to switch ( including the design of the computer survey and control system, instrument deliver system, delay operate and protect system ). although thyristor as a no - contact switch can avoid almost the problem of contact switch with contact, it can not solve the over - voltage, over - current and transient process itself as switching on / off capacitors or reactor. so we must develop a set of thyristor - switched control and protect system with great reliability so that it can realize of cross - zero switching on / off capacitors or reactor at any time
晶閘管具有過零、動作快速的特點，本研究以晶閘管為電容器和電抗器的分組投切開關，重點研究了協調變壓器二次電壓的選擇、晶閘管觸發控制及保護、動態補償容量及分組容量的計算確定、過零投切電容器和電抗器技術的實現、以及分組投切電容器和電抗器可能發生諧振的處理計算方法，給出實現最佳補償投切選擇方法（測控系統、儀表變送系統、操作和保護系統的設計步驟） ，研製了一套高可靠性晶閘管觸發控制及保護系統，實現對無功的靜止可調補償。 -
By series of linear and nonlinear mechanical analysis of the road pavement, and together with series of plate - bearing test and stress test in place, we elicit that marshall mix design method is not fitful for asphalt pavement design. the mechanical property between the asphalt layers is a problem of contact. the contact nonlinear finite element method can get more credible solution than linear finite element method or layer theory does
通過對試驗段路面的線性、非線性力學計算和現場承載板試驗得出：馬歇爾試驗不能如實反映實際路面的受力性能；瀝青混凝土結構層之間通過接觸傳遞應力，接觸非線性模型比層狀彈性體系模型更符合實際，接觸非線性有限元計算結果可以較準確地反映實際路面的力學特性。
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