非彈性系數 的英文怎麼說

中文拼音 [fēidànxìngxìshǔ]
非彈性系數 英文
inelasticity coefficient
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 彈 : 彈名詞1. （彈子; 小球形的東西） ball; pellet 2. （內裝爆炸物, 具有破壞和殺傷能力的東西） bullet; bomb
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. The scielltific computational theories and methods on bird strike to the windshield of aircraft have been systematically studied and summed up in this thesis, such as fem comptltational principles and procedures to elastic dynamic problems under the conditions of small and non - linear finite deformation, 3d viscous elastic constitutive theory and incremelltal expression under the consideration of the rate effect of non - metallic materials like the aircraft windshield, and the numerical compatational principles and key constitutions for impact - contact dynamic subjects

    2 、系統學習並歸納總結了鳥體撞擊風擋結構問題中的科學計算理論與計算方法。按照鳥撞問題數值計算方法逐步深入的思路，系統總結了小變形結構動力學有限元數值計算方法、有限變形的幾何非線性有限元數值計算方法、粘彈性體非線性形變的本構物理關系；對于實施復雜結構有限元動力學計算的載荷增量方法提出了對newmark差分的改進以及進行材料與幾何非線性數值計算的細致步驟。
  2. The main contents are as follows. ( 1 ) filter cloth and the surrounding soil mass are taken as an approximate isotropy in horizontal section, the relationship of stress and strain is studied, the anisotropy is fully considered, the constitutive model of filter cloth reinforcement fly - ash compound is obtained, it is tested with numerous indoor experiments. ( 2 ) the permeable coefficient is introduced into the constitutive relationship of soil mass with relevant seepage theory ( kozeny - carman experience formula ). the test of filter cloth depositing hi the condition of long term seepage flow is done hi the dissertation, the varying regular of permeable coefficient without pressure is presented

    本文首先對國內外的研究現狀作了回顧和總結，然後主要針對土工織物加筋粉煤灰復合體的本構關系和計算理論進行研究，主要內容有： （ 1 ）將土工織物和周圍土體視為一種近似的彈性非線性橫觀各向同性體，研究它的應力應變關系，充分考慮它的各向異性，得到土工織物加筋粉煤灰復合體的本構模型，然後通過大量室內試驗進行分析驗證； （ 2 ）引入有關滲流理論，即柯茲尼-卡爾曼（ kozeny - carman ）經驗公式，將滲透系數引進到土體本構關系中。
  3. A rate - dependent damage evolution modified zwt nonlinear constitutive ralation is adopted, an object function of least square was established according to the experimental results. the searching space of each decision variable was foreordained with conventional optimizing method, and all parameters in zwt model for solidified pf resin were determined with generic algorithms

    基於實驗曲線構建了最小二乘形式的目標函數，並採用傳統優化方法輔助設計了各個決策變量的搜索空間，進而用遺傳演算法確定了損傷型zwt非線性粘彈性本構關系中的材料參數。
  4. It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results

    對于復雜的非線性導彈制導系統，很難求得其解析的最優制導律，只能求得開環的數字解，不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力，對開環的數字最優制導律進行離線的學習，作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響，以及各種制導律的魯棒性問題，並採用模塊化神經網路結構提高神經網路的學習和推廣能力，模擬結果得到一些有益的結論
  5. Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f. e. m. model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model. from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation

    針對以上問題本文做了以下一些工作並得到若干結論： （ 1 ）提出了「復合雙層地基」的概念，並通過工程實例證明此概念的提出有其合理性和必要性； （ 2 ）用彈性地基梁理論證實了復合雙層地基確有應力擴散效應，且擴散效應隨上覆硬層厚度、剛度的增加而增大，隨下臥層基床系數的增大而減小； （ 3 ）建立了非線彈性、各向異性有限元模型，並以此為基礎分析了復合雙層地基的應力擴散效應，得到附加應力系數隨加固層厚度、寬度、剛度的增加而增大的結論； （ 4 ）推導了可用於常規計算的復合雙層地基應力擴散系數公式，並代入工程實例進行了驗證。
  6. Theoretical analysis and computer simulation studies show that performance comparable to that of electro - control active damping suspension systems can be achieved with the hydraulic network model which can self - adaptingly adjust the damping of suspension to realize the optimal control by virtue of response of vehicle. in chapter 5, the effects of time - variant factors in the new active damping suspension system on reduction are investigated

    第五章研究了主動阻尼系統中的時變因數對減振系統的減振效果的影響（包括路況、車速、載重阻尼油的粘度系數隨油溫變化而引起的變化，油液的彈性模量等） ，並分析了模型簡化時一些被忽略的非線性因數對系統性能的影響。
  7. The software ansys6. 0 is used to analysis the stability of the state after construction of tongwamen bridge, linear method is used in analyzing the finite element model of the bridge, the coeffient of stability of different state after construction is given. on the basis, the effect of different factors such as the arrangement of lateral brace, the sloping angle of arch ribs, the stiffness of bridge deck system, the effect of non - orientedly conservative loadings of the hanger and tie bar etc is discussed. the different coefficients of stability of changing these factors are given, so the factors that are vital to the lateral stability of x - type arches are found, and the rationality of the methods taken to enhance the lateral stability of tongwamen bridge is evaluated

    本文應用有限元分析商業軟體ansys6 . 0 ，採用線彈性方法，通過對該橋的空間有限元模型進行穩定性分析，得出其成橋運營階段各種工況下的穩定安全系數。在此基礎上，本文還通過有限元模型分析，就拱的矢跨比、吊桿（立柱）的非保向力效應、橋面系的剛度、橫撐布置形式、拱肋側傾角等因素對該橋整體穩定性的影響展開探討與研究。文中給出了各因素變化情況下的穩定安全系數，指出了對鋼管混凝土提籃拱橫向穩定性有顯著影響的因素及其合理變化范圍，並對銅瓦門大橋提高橫向穩定性的措施的經濟合理性進行了分析。
  8. However, due to the elastic deflection and vibration of the links, the flexible manipulator becomes an infinite dimension mimo system with distributed parameters, and is highly nonlinear and strong coupling. therefore, the model and the control of flexible manipulator are of great significance both in theory and in application

    然而也正是由於連桿存在彈性變形和振動，使得柔性機械手成為一個高度非線性的、分佈參數的、強耦合的無窮維多輸入多輸出系統， ，因此其建模和控制也具有重要的理論意義和應用前景。
  9. It also analyzes the history and the present situation of the shift in village in this part. in the fourth part, i establish employment elastic time series model to analyze the ability of absorbing labor. finally, some supporting stratagems are proposed to promote village surplus labor shift, to adjusts the employment structure and to optimize the industrial structure

    第三部分用特化系數考察江蘇各區域的勞動力分佈情況，並分析了江蘇農村剩餘勞動力轉移的歷史和現狀，以及存在的問題;第四部分建立就業彈性的時間序列模型，對非農產業的勞動力吸納能力進行定量分析，並對非農產業內部具體產業的勞動力吸納能力作了比較;最後，把區域空間結構發展模式與江蘇經濟發展的具體特徵融合到一起，提出轉移江蘇農村剩餘勞動力以調整就業結構，並促進產業結構結構優化和經濟協調發展的政策建議。
  10. The basic properties of wood such as moisture content, density, grain direction and modulus of elasticity can be measured nondestructively

    摘要與木材材質有關之因數如含水率、比重、木理走向、彈性系數等可藉破壞或非破壞方法來測定或推定。
  11. The inversion of non - elasticity attenuation coefficient, source parameters an

    利用井下數字地震記錄反演非彈性衰減系數震源參數和場地響應
  12. The macro - mechanical properties ( the elastic constants ) of the fractured rocks can be connected with the micro - parameter of crack ( crack number density )

    這個模型將微觀隨機參數（裂紋數密度）與非均勻裂縫介質的宏觀性質（彈性常數）直接聯系起來。
  13. Three finite - difference methods, i. e., stagger grid, implicit and explicit algorithms, are analyzed in detail. multi - grid algorithm is firstly introduced in elastic wave simulation, to solve for the stability problem inherent in stagger grid and implicit algorithm, also for the efficiency problem inherent in explicit algorithm, and the precision, stability and efficiency for simulation of elastic wave arc increased by multi - grid method. phase - delay method is provided to effectively absorb boundary reflection and increase efficiency for wave motion simulation, based on phase delay and amplitude decaying features along wave propagation

    在水平分層介質接收函數的波形反演研究的基礎上，本文系統闡述了非均勻介質中彈性波傳播數值模擬常用的三種有限差分方法：顯式差分、隱式差分和交錯網格法，首次將多重網格演算法應用於彈性波方程的數值模擬問題，克服了交錯網格法和顯式差分法穩定性差，以及隱式差分法計算效率低的缺點，大大提高了彈性波數值模擬的精度、穩定性和計算效率。
  14. Integrated ase design and coupled cfd / csd simulation technology and firstly applied the reduced order model based on volterra series to the design of ase system 2

    將ase系統設計同cfd csd耦合模擬技術相結合，首次將基於volterra級數的非定常氣動力降階模型用於氣動伺服彈性系統的設計。
  15. ( 2 ) to develop the three nodes supply chain coordination problem between one manufacturer, one whole - seller and one retailer based on two nodes supply chain : to expand two nodes benefit model to three nodes, then to discuss the change of each node benefit and supply chain total benefit on the un - fixed price flexibility coefficient and to make three - dimension for analysis

    （ 2 ）對於一個生產商，一個批發商和一個零售商組成的三節點供應鏈的協調問題，在兩節點供應鏈的基礎上進行了擴展:將兩個節點的利潤模型擴展到三個節點，然後也在非固定的價格彈性系數下來討論每種策略中各節點利潤和供應鏈總利潤的變動，並作出三維圖形進行分析。
  16. Following works has been done : ( 1 ) for the coordination problem of two nodes in supply chain between one manufacturer and one retailer, it hereby make improvement based on the concerned literature research : to relax a certain tentative terms ; to discuss the change of each node benefit and supply chain total benefit in every policies under un - fixed price flexibility coefficient and to make three - dimension for analysis

    作出了以下幾個方面的工作: （ 1 ）對於一個生產商和一個零售商的兩節點供應鏈的協調問題，主要在相關文獻研究的基礎上作出了改進:放開了某個假設條件;在非固定的價格彈性系數下來討論每種策略中各節點利潤和供應鏈總利潤的變動，並作出三維圖形進行分析。
  17. Further more, the new nonlinear method for constructing high order resilient functions is present, and a lower boundary of these functions " nonlinearity is also obtained by using the definition of local nonlinearity

    同時還給出了構造高階彈性函數新的非線性方法，並通過運用局部非線性度的定義，得到了這些彈性函數非線性度下界的一個關系。
  18. Keywords : geometric nonlinearity, sag effect, equivalent modulus of elasticity, vehicle - bridge interaction

    關鍵詞：幾何非線性、中垂效應、等效彈性系數、車橋互制。
  19. The transfer function of the servo system in laplace - domain is transformed to time - domain to produce the servo state equations. by solving aerodynamic equations, structure state equations and servo state equations in every time step, the aeroservoelastic problem can be simulated in time domain

    將伺服機構的傳遞函數轉化為狀態方程和輸出方程，在時間域內同時求解結構運動方程、非定常氣動力、伺服狀態方程和輸出方程，實現了帶有伺服機構的氣動彈性系統的時域模擬。
  20. Abstract : in this paper the visco - elasticity constitution relationship of cyclic degradation describing offshore soft clay behaviors is studied. a method for quantitatively analyzing the stability of offshore soft soil sites under wave loading is developed by combining the relationship with water - mud multi - layer interface model. since the variation of nonlinear visco - elasticity parameters due to cyclic degradation of soft clay can be considered, the analytic results can reflect the changing process of soft clay under wave loading

    文摘:本文研究了海洋軟土的循環弱化粘彈性本構關系，進而把它與波浪、水、土多層計算模型相結合，提出一種定量分析波浪作用下海洋軟土場地穩定性的方法.由於它考慮了軟土的循環弱化而導致的非線性粘彈性參數的變化，使分析結果能比較真實地反映波浪作用下海洋軟土層的變化過程
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