曲折度系數 的英文怎麼說

中文拼音 [qūzhédùxìshǔ]
曲折度系數 英文
coefficient of tortuosity
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 折 : 折動詞[口語]1. （翻轉） roll over; turn over 2. （倒過來倒過去） pour back and forth between two containers
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 曲折 : 1 （彎曲） circuitos; intricate; ups and downs; tortuous; winding; zigzag 2 （復雜的、不順當的情...
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. The farina press brakes which are equipped with tms, are able to measure without any delay of the bending process, the real thickness of the sheet. this system is totally automatic and updates all of the bending parameters accoring to the new thickness aquired

    裝有tms系統的法瑞納的折彎機能夠準確無誤地測量初薄板彎曲加工厚度，全自動系統可根據要求的厚度自動改變參數。
  2. Using the complex potential method in the plane theory of elasticity of an anisotropic body, the series solution of finite anisotropic thin plate containing an elliptical inclusion is proposed with the help of faber series. a hybrid element with an elliptical inclusion for anisotropic materials is obtained by using the hybrid variable principle, and the element efficiency is verified by numerical examples. the state of the damage is modeled by an elliptical soft inclusion, and using the point stress criterion based on characteristic curve and yamada - sun etc. criteria, the prediction of the strength of a composite laminate with damage is set up

    首先基於經典層板理論，將復合材料層板的彈性問題化歸為均勻各向異性板來求解；採用各向異性體平面彈性理論中的復勢方法，以faber級數為工具，給出了有限大含橢圓核各向異性板彈性問題的級數解形式；利用雜交變分原理，成功導出含橢圓核各向異性板雜交應力有限元，並用算例驗證了該單元的可行性和有效性；採用含剛度折減橢圓形彈性核的沖擊損傷模型，引入基於特徵曲線和yamada - sun破壞準則的點應力判據，建立了含損傷復合材料層板剩餘強度的分析方法；通過數值計算詳細討論了各種幾何參數對損傷層板應力分佈、剩餘強度的影響，得到了一系列對工程應用具有實用價值的結論。
  3. Available empirical results indicate that the creep of reinforcement strongly influences the overall behavior of rs structures, which is demonstrated by excessive deformations. different creep tests are discussed and the test methods to obtain the two kinds of creep curves are compared in this thesis. the methods of how to determine the reduction factor according to long - term strength of creep or allowable strain during the services life are presented

    文中介紹和研究了不同的蠕變試驗手段，比較了獲得兩種蠕變曲線的試驗方法，並給出了兩種蠕變曲線一定范圍外推的數據處理方法;給出怎樣根據設計使用年限的長期蠕變強度或容許應變來確定蠕變折減系數的方法，並用計算實例來說明。
  4. The reduction factors derived from curve fitting based on calculation results by the finite element program ( ansys ) considering all kinds of damages such as cutouts, corrosion, cracks, denting, initial deflection and residual stress are introduced to modify the effective width of perfect panel in the present paper

    本文考慮板中可能存在孔洞、腐蝕、裂縫、局部撞損和初始焊接變形或殘余應力等損傷和初始缺陷，對不同的損傷形式用有限元程序（ ansys ）進行大量的計算，通過曲線擬合的方法引入折減系數對完好板格的有效寬度進行修正。
  5. In experiments, the energy band structures of l - - d pc and 1 - - d pc sl are researched. we get the relation between the band gap width and the num - ber of the iayers, dielectric indices contrast, midgap wave - - length

    在實驗工作中，研究了一維光子晶體的能帶結構，得到了帶隙寬度隨介質層數、介質折射率、中心波長變化的關系曲線。
  6. By examining the micro mechanism of photorefractive effect, we can find that an external dc electric - field can greatly alter ( improve or worsen ) the photorefractive properties of sbnrcr. so it is important to study electric - field effects in these materials. in this thesis, the characters of beam coupling and transmission in sbn : cr crystals under external dc electric - fields are investigated theoretically and experimentally

    本文依據光折變非線性光學的光波耦合理論和傳輸理論，對sbn cr晶體在外加直流電場作用下的光波耦合特性和傳輸特性進行了理論分析和實驗研究，主要內容包括： （ 1 ）從理論上分析了外加直流電場對光折變二波耦合增益的影響，給出了sbn 60晶體的強度增益系數隨外加電場變化的理論計算曲線。
  7. Based on the calculated results of the computer program, varied stress contribution curves of short leg walls with t, l and + shaped sections are shown in the paper, together with deformation information of members. to measure the influence of shear lag, the equivalent bend stiffness of short leg walls is introduced. the discounting coefficients of the bend stiffness of members can be used in the bars - system models of short leg walls building structures

    藉助一個力學模型，論文將影響構件側移的彎曲變形、剪切變形、剪滯效應三個因素分離開，分析了剪滯效應對構件抗側性能的影響，並將該影響計入了短肢剪力墻理論抗彎剛度的折減系數，經折減的短肢剪力墻等效抗彎剛度內在包含剪滯效應的影響，可方便地用於結構的計算實際。
  8. According to the relationship between material fatigue performance curve and concerned parameters in fracture mechanics, the relationship between fatigue life and crack half length is obtained, that is equivalent crack length of fatigue life. the function relationships between these two aspects are constructed. the experiment data show that this method can express the same character of fatigue life of all kinds of materials and experiment data acquired from different materials can be used each other

    通過材料力學疲勞性能曲線和斷裂力學之間有關參量間的演變關系，得到了疲勞壽命與裂紋半長的關系，即疲勞壽命的折算裂紋長度，建立了兩者之間的函數關系並利用這個函數關系說明了疲勞壽命的切線模量因子法，能反映各種材料疲勞壽命的共同變化規律，試驗數據可在不同材料之間互相參考使用，具有重大意義。
  9. Firstly, based on the basic theory of grin optics the optical effects of the spherical symmetry grin micro - sphere lens were analyzed systematically. then two suitable monomers were selected to fabricate grin micro - sphere lens by suspension - diffusion - copolymerization method. finally, the refractive index distribution curve and other optic parameters of the micro - lens were measured

    本工作從梯度折射率介質光學的基本理論出發對球對稱grin微球透鏡的光學性能進行了系統分析；選擇兩種適當單體，採用懸浮擴散共聚法制備出聚合物梯度折射率微球透鏡；測量所得透鏡的折射率分佈曲線和其他光學參數。
  10. This system included three parts : the first part was the establishment of 3d model buildings and conversion of the format for them, and then carried these 3d model randomly used java3d ; the second part was to research the scene simulation technology and provide a multifunction method to establish random hill 、 water and lawn, the characters of these natural scene could be controlled by some parameters ; the third part set up database management system, that system could 3d data of the random scene, so it could provide convenient and maintenant for the whole system

    該系統包括以下幾個關鍵部分:第一部分是三維建築模型的建立及格式轉化，然後把轉化的格式進行存儲，最後利用java3d技術對這些三維模型進行隨機的調用;第二部分是研究當今視景模擬技術及其主要方法，提出多功能演算法，利用java3d技術，生成隨機的山、水、草地等，同時，還提供了互動式功能，用戶可以利用可控參數對這些自然場景曲折度和寬度進行控制，此外，用戶還可以對場景進行瀏覽，實現視點的移動、旋轉，以及碰撞后視點的調整。
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