contact n. 1.接觸;聯(lián)系;交涉。 2.〔美國(guó)〕(有勢(shì)力的)熟人;門(mén)路。 3.【數(shù)學(xué)】相切;【電學(xué)】接觸;觸頭;觸點(diǎn);【無(wú)線電】通訊;【軍事】(飛機(jī)和地上部隊(duì)的)聯(lián)絡(luò)。 4.曾與傳染病接觸者;【醫(yī)學(xué)】傳染病帶菌嫌疑人。 a man of many contacts 交際廣[門(mén)路多]的人。 an auxiliary contact聯(lián)鎖觸頭。 first contact【天文學(xué)】初虧。 fourth [last] contact【天文學(xué)】復(fù)圓。 a radar contact雷達(dá)搜獲目標(biāo)。 be in contact with 和…接觸著,和(某人)接近。 break contact斷開(kāi)電路。 brought ... into contact with ... 使…和…接觸。 come in (to) contact with 和…接觸[沖突];碰見(jiàn)。 make contact 接通電路。 make useful contacts with ... 和…進(jìn)行有用[利]的來(lái)往。 vt. 1.使接觸。 2.【無(wú)線電】與…通訊;與…通話。 3.〔美口〕與…交際,接近(某人)。 contact a station in America 和美國(guó)一電臺(tái)通話[接觸]。 vi. 接觸,聯(lián)系。 ★ contact 作動(dòng)詞,多用于商業(yè)上或極親密的朋友之間。 adj. 1.保持接觸的,有關(guān)系的;由接觸引起的。 2.【航空】可看見(jiàn)地面景物的。 adv. 【航空】以目力觀察(飛行)。 int. 開(kāi)動(dòng)〔讓飛機(jī)發(fā)動(dòng)的信號(hào)〕。
Reflection and refraction of elastic waves at a unilateral contact interface between two generally anisotropic media 一般各向異性單側(cè)接觸界面上波的反射和折射
So far , in the fem analysis , the contact interfaces usually are taken as the joint element , which was introduced by goodman early in 1968 在有限元中計(jì)算中,常用的方法是利用節(jié)理單元來(lái)模擬接觸面。
In conclusion , taken . as contact problems , the mechanical properties of contact interface can be reflected more perfectly 論文的最后對(duì)本文方法中一些尚待改進(jìn)的問(wèn)題及今后的發(fā)展方向作了分析和討論。
The key point in the research of the instability is how to capture exactly the movement of the contact interface 在界面不穩(wěn)定性的數(shù)值研究中,最核心的當(dāng)是運(yùn)動(dòng)界面的精確描述,正是由于這?需要使得虛擬流動(dòng)界面捕捉( ghostfluidmethod )方法得以充分發(fā)展。
Presently , as a widely used technique in finite element analysis for geotechnical , problems , the contact interfaces usually are taken as the joint element , which was introduced by goodman eary in l968 本論文的主要目的就是試圖將它作為接觸問(wèn)題處理,建立相應(yīng)的計(jì)算公式及方法,并用于上述巖土工程問(wèn)題的求解。
In this paper , based on comprehensive analysis of the dynamic variation of the contact interface between the workpiece and its dies , material methods to identify and handle the dynamic interface conditions are presented 本文在全面分析成形中工件與模具接觸邊界動(dòng)態(tài)變化的基礎(chǔ)上,給出了動(dòng)態(tài)邊界條件識(shí)別與處理的具體方法。
When plastic fem is used to numerically simulate the process of sheet metal forming , handling of dynamic contact interface conditions between the workpiece and its dies is needed to obtain credible computational results 采用塑性有限元法對(duì)金屬板料成形過(guò)程進(jìn)行數(shù)值模擬時(shí),為獲得可信的計(jì)算結(jié)果,需要對(duì)工件與模具間動(dòng)態(tài)接觸邊界條件進(jìn)行處理。
Nevertheless , in the model , the contact interfaces are charactered simply with stiffness kn and ks , whick is not perfect and rigorous in the view of solid mechanics and rather rough for the description of the behavior of the interfaces 本論文對(duì)這種方法經(jīng)過(guò)分析之后,發(fā)現(xiàn)這種處理方式對(duì)接觸面的描述并不合理,也無(wú)法反映出接觸面的主要力學(xué)特征。
Abstract : when plastic fem is used to numerically simulate the process of sheet metal forming , handling of dynamic contact interface conditions between the workpiece and its dies is needed to obtain credible computational results 文摘:采用塑性有限元法對(duì)金屬板料成形過(guò)程進(jìn)行數(shù)值模擬時(shí),為獲得可信的計(jì)算結(jié)果,需要對(duì)工件與模具間動(dòng)態(tài)接觸邊界條件進(jìn)行處理。
In this paper , we developed a new kind of interface capturing method which use the level set equation to keep track of the interface location as the zero level and use the ghost fluid method to propagate the contact interface disturbed by r - m instability or r - t instability 由于該類(lèi)方法是以數(shù)學(xué)方程的物理解的性質(zhì)為基礎(chǔ),通過(guò)設(shè)置一個(gè)距離函數(shù)( levelset函數(shù))來(lái)標(biāo)志界面所在的位置,從而能夠夠精確地捕捉到界面的發(fā)展,而不會(huì)出現(xiàn)非物理解的現(xiàn)象。