擬合雙曲線 的英文怎麼說
中文拼音 [nǐgěshuāngqūxiàn]
擬合雙曲線
英文
hyperbola of fit- 擬 : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
- 合 : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
- 雙 : Ⅰ形容詞1 (兩個) two; twin; both; dual 2 (偶數的) even 3 (加倍的) double; twofold Ⅱ量詞(用...
- 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...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
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An approach for approximation of arbitrary conic by biarcs
任意二次曲線的雙圓弧擬合成形法The present findings of semi - rigid connections, the method for design of beam - to - column connections in the codes from china and other countries, and the character about semi - rigid connections, were briefly introduced in this paper. the simulated method of the m - r relation curve of semi - rigid connections, the computing equations about the initial stiffness and moment capacities of two kinds of top - seat angle connections, with and without double web - angle, were discussed
本文簡要地介紹了半剛性節點的研究現狀、各國規范樑柱連接的設計計算內容和方法、樑柱連接的類型和半剛性連接的特性,探討了頂、底角鋼、頂、底角鋼帶雙腹板角鋼兩種半剛性連接的m - _ r特徵曲線及其擬合方法,頂底角鋼連接、帶雙腹板頂底角鋼連接初始剛度以及彎矩承載力的計算公式。Finally, niutoushan double - curvature arch dam was modeled and 3 - d fem simulation analysis was performed, so as to find out the integral safety factor and the stress and displacement patterns of dam and its foundation under different load combination
最後,對牛頭山水電站雙曲拱壩進行了有限元建模和三維非線性有限元模擬分析,計算分析了各種情況下壩體和基巖的應力位移規律,對大壩的整體安全度進行了綜合評判。The approximate polynomial method was based on neuber ' s method, the cyclic stress - strain responses and neuber ' s rule were treated as probabilistic curves, and the statistic characteristic was obtained from the approximate polynomial. the method is fast and easy for engineering application
近似的多項式擬合法在諾伯法的基礎上,將循環應力應變曲線和諾伯雙曲線視為概率曲線,通過建立近似多項式的方法,求得局部應力應變的統計特性,快速簡便,適合工程應用。The simulated test of the mechatronics soft start equipment is made regarding the experimental platform of belt conveyor as load, the sensor design is had for selecting type, the testing datum are gatherd and analyzed, the rational curve of velocity in the starting and braking progress are gained, the best matching ratio of driving power for the double asynchronous moters is found
以帶式輸送機實驗臺為負載進行了機械電子式軟起動裝置的模擬試驗,對傳感器進行了選型設計,對試驗數據進行了採集與分析,確定了合理的起、制動速度曲線,求出雙電機驅動功率的最佳配比。During the past decades, some researchers, such as : bezier, kj. versprile, deboor and cox, etc. had made great progress in the filed of constrained b - spline curve and surface fitting. in this article the method of constrained b - spline curve was introduced, which is used to figure out the control vertexes. using this interpolation method we can calculate every points of a uniform b - spline
並且分析了在各種端點情況下,在重節點的情況下,如何反算控制多邊形的頂點;如何在求出控制多邊形頂點之後,插值計算b樣條擬合曲線上的每一點;並通過結合雙尾船的型線,採用visualc + +和autocad2002為平臺,分別編制了相應的軟體,對提供的型值做出繪圖處理,取得了良好的效果。The study result is listed as follow : the transformation pseudo - elasticity property of shape memory alloys is simulated exactly with the above mentioned method of value calculation. the shape memory alloys re - centring damper presents typical " double flag " hysteretic curve, and the result accords with the theory analysis. the property of above new isolation device is excellent, the seismic response of the super - structure is significantly reduced, and the fully re - centring capacity after earthquake is obtained
研究結果表明,文中所提的數值求解方法能夠反映形狀記憶合金相變偽彈性的基本特徵;形狀記憶合金自復位阻尼器在循環荷載下呈現出典型的雙旗型滯回曲線,程序的模擬結果與理論分析相吻合;這種新型隔震裝置的性能優良,既可以大大減輕地震對上部結構的影響,同時也具有很好的震后自復位功能。Through calculation on varied parameter, a group of suitable parameter is found out. the results of experiments indicate that the theoretical analysis to the magnetic field of the magnetic structure is proper. to remove the result error come from the change of gap between piston rod and sensor, a signal processing method accompanied with machine learning process is researched
為消除傳感器與磁性標尺之間間隙變化對測量結果的干擾,將示教學習方法引入行程傳感液壓缸的信號處理過程,並使用改進的遺傳演算法解決自學習過程中周期曲線的擬合問題,提出了雙傳感器軸向直線布置方法和基於自學習過程的信號處理方法,通過實驗,達到了顯示精度0 . 01mm ,測量重復精度0 . 2mm的良好效果。Gear form is precisely, plotted by portray point. for friendly user interface, the dialog - box is given, using dcl language to compile dialog box program. because the given program can not only output all the optimum basic parameters of pump gear, but also simulate the meshing process of a pair of pump gears, gear pump can be designed and manufactured economically
精確繪出泵齒輪的輪齒幾何形狀,尤其精確繪制出了標準齒輪滾刀切出的齒根過渡曲線,演示了國標雙圓弧頭標準滾刀加工泵齒輪的過程,並實現了泵齒輪副的嚙合模擬,這些對檢查輪齒干涉以及確定齒輪泵的卸荷槽位置和形狀提供了依據。In this paper, we consider mixed finit element methods for the initial - boundary value problems of two order hyperbolic equations and linear integro - differential equations of parabolic type, obtain the error estimates of the discrete schemes for this two kinds of problems. in chapter one, we consider the expanded mixed finite element methods for the followling 2nd order hyperbolic problems this method expands the standard mixed formulation in the sense that three variable are explixitly treated : the scalar unknwon, its gradient and its flux
本文討論了二階雙曲方程和線性拋物型積分微分方程方程初邊值問題的混合有限元方法,得到了這兩類問題混合有限元離散格式的誤差估計。第一章討論二階雙曲初邊值問題的擴展混合元方法。該方法能同時逼近未知函數、未知函數的梯度和流體的流量,較好的模擬了帶有混合型邊界條件的二階雙曲問題。Power bond graph is used to established the bond graph model of the lifting and dropping of hydraulic pile hammer and state space equation in the paper for hydraulic pile hammer is perplexing nonlinear system. in order to attain the graph that pressure, position, velocity, acceleration vary with time in the course of driving pile simulation procedure solving state space equation is designed on the basis of combining four - order runge - kutta method with predicator - corrector method, dynamic simulation of the hydraulic system is studied in matlab 6. 5. it is convenient to analyse dynamic characteristics of the hydraulic syste m, beneficial to the design and parameter optimization of the hydraulic system. in the final part of the paper, under detailed analysis of the control characteristics for double - acting hydraulic pile hammer with double cylinders, control system based on the programmable logic controllers founded on technology of modern compute is designed
由於液壓打樁錘液壓系統是一個復雜的非線性系統,本文採用功率鍵合圖法建立液壓打樁錘上行、下降的鍵合圖模型和狀態空間方程,通過四階龍格?庫塔法和預估?校正法相結合編制了模擬程序對狀態空間方程求解,在matlab6 . 5中進行液壓系統的動態模擬,獲得液壓打樁錘運動過程中壓力、位移、速度、加速度等隨時間變化的曲線圖。此曲線圖方便了對液壓系統動態特性分析,為液壓系統的設計和參數優化提供了有益的借鑒。最後,在深入分析雙缸雙作用液壓打樁錘控制系統的功能要求后,採用了以現代計算機技術為基礎的新型工業控制裝置? plc可編程式控制制器,設計出了雙缸雙作用液壓打樁錘的電器控制系統。Upon those theory studies, under the simulation environment of adams software, the 3 - d virtual prototype model was simulated according to actual gorilla robot “ gorobot ”. and in simulation studies, this paper realized biped steady dynamic forward - walking, upstairs and downstairs biped walking, walking mode shifting and rationality of the method for pattern generation was validated in this paper. by the simulation, the curves of joints drive torque and ground reaction force for landing - foot were gained
基於上述的理論,在模擬軟體adams的環境下對類人猿機器人「 gorobot 」模擬實現了雙足前向穩定動步行,雙足上下臺階,步行方式動態轉換過程,從而驗證了本文的步行樣本生成方法的正確性和合理性;通過模擬得到的關節力矩曲線、著地腳的地面反力曲線等模擬結果驗證了機器人步行和步行方式轉換的能力。Another approach of this thesis is to demonstrate that the lowest degree is 5 in order to make the b - spline patches hold the property of local adjustment if no specific 111 abstract restriction to the partition. most existed surfaces reconstruction methods adopt bezier tool and demand particular partition. the local scheme addressed in this thesis does n ' t restrict the partitions of fitted surfaces, and the fitting tools is biquartic b - spline surfaces with double interior knots and biquintic b - spline surface with single interior knots
本文論述的「局部格式」調整方法不對剖分區域施加任何限制,主要採用內部具有二重節點的雙四次b樣條曲面和單節點的雙五次b樣條曲面做為擬合工具,給出了「局部」調整的方法,該方法能很好的保持拼接曲面的幾何特徵,克服了許多已有的重構方法僅採用簡單共線法處理幾何光滑性的弊端。The global classical solution of the mixed initial - boundary value problem for a kind of the first order quasilinear hyperbolic system
一類非齊次擬線性雙曲型方程組混合初邊值問題的整體經典解By means of the existence and uniqueness of semi - global c1 solution to the mixed initialboundary value problem with general nonlinear boundary conditions for first order quasilinear hyperbolic systems with zero eigenvalues, we establish the local exact boundary controllability for second order quasilinear hyperbolic systems with general nonlinear boundary conditions
本文利用具零特徵的一階擬線性雙曲型方程組帶一般非線性邊界條件的混合初-邊值問題的半整體c1解的存在唯一性,對具一般類型非線性邊界條件的二階擬線性雙曲型方程組建立了精確邊界能控性In this paper, brief summary and contrast for the analytical methods of arch dam were conducted, the visualization and parameterization of fem, and its implementation were investigated, and the system based on ansys, for the simulation fem analysis of arch dam was developed. and 3 - d nonlinear fem simulation analysis was then carried out for niutoushan arch dam, which is located in shouning county, fujian province of china
本文對拱壩的分析方法做了總結對比,研究了有限元分析中的可視化、參數化方法及它們實施技術,開發了基於ansys平臺的拱壩有限元模擬分析系統,並結合實際工程對福建省壽寧縣境內牛頭山水電站雙曲拱壩進行了三維非線性有限元整體穩定模擬分析。In this paper, depending on the enormous 356 pile testing date detailed with soil and pile parameters and p ~ s curves, covering xi ' an and adjacent areas, we analyzed the load transmission mechanism of pile in loess foundation, and proposed a kind of hyperbolic load transmission function between pile and it ' s neighboring soil. meanwhile, we created a mathematical model to predict p ~ s curve and bearing capacity of single pile. by analyzing the compacting effect caused by pile - sinking of pressed pile in loess and it ' s influence on bearing capacity and settlement, two parameters, kc and ke are introduced to modify the soil cohesive c and deformation modulus es
本文利用現己收集到的西安及其周邊地區356根打入樁、靜壓樁、灌注樁的現場試樁資料(其中打入樁67根,靜壓樁121根,鉆孔灌注樁168根,並有詳細的地層勘探資料,樁深資料,荷載沉降?曲線)對西安黃土地基中的打入樁、靜壓樁、灌注樁的荷載傳遞機理進行了分析研究,認為用雙曲線型的荷載傳遞函數模擬樁土之間的荷載傳遞函數是合適的,並用荷載傳遞分析的方法建立了計算p s曲線的數學模型及極限承載力的確定方法。An extended hyperbolic mild - slope equation, which can take such terms as wind input, bottom friction and nonlinearity of wave into account, here has been deduced into a parabolic one in the form of a series of governing equations described with complex amplitude. it became a complete wave model when integrated with corresponding physical and imaginary ( open ) boundaries, and can be solved through the improved crank - nicholson or the well known alternating direction implicit ( adi ) difference method, both of which can accelerate the convergent speed, expand limitation of the mathematical method and improve the quality of the solution
本文基於綜合考慮底摩阻、風能輸入及非線性影響的推廣雙曲型緩坡方程,將其進行轉換,產生一個演變方程,其復振幅控制方程為拋物線性,並採用adi差分格式、改進的crank - nicholson格式及相應的物理和虛擬(開)邊界條件進行求解,以提高數值模擬的適用性、數值計算的穩定性、收斂速度及精度。Used dynamics equation to express the relation between the accumulation amount of no 3 - n leaching and time : urea, ammonium - bicarbonate and composed fertilizer can be expressed as equation yt1 / 2 = a + bt, complex mixed fertilizer can be expressed as equation 1 / y = a + bl / t. the accumulation leaching quantity of no 3 - - n with urea, ammonium - bicarbonate, composed fertilizer and complex mixed
隨時間t的變化用方程進行擬合,結果表明ck 、碳按和復混肥處理,以雙曲線方程l / y二a + bl八擬合效果最好,而尿素和復合肥處理則以拋物線方程y , 』 / 2 = a十bt擬合效果最好。Aiming at drawbacks that environment simulate test laboratory ( estl ) ' s control precision is being dropped, the system digital simulation, the system characteristic analysis is proceeded ; basing on it, intelligence pid control processor, integral desaturation pid control processor, leading adjust control processor ( leading adjust of point of inflection of curve ) is planned, double loop control processors of low temperature system is consummated, so, the new control scheme and control program is formulated ; moreover through control program " simulate debugging and environment simulate test, 18 experimental curves and 19 experimental items is fulfilled totally. it proved that estl ' s control system and control program are successful. experimental result makes it known that the new control plan solves the problem of low control precision
本論文針對環模室原控制系統存在的控制精度下降等問題,進行了系統模擬及環境模擬系統特性分析,在此基礎上,設計了智能pid控制器、抗積分飽和的控制器、預估補償控制器、完善了低溫系統的雙迴路控制,制定了新的控制方案和控製程序組態,並對其控製程序進行模擬調試及結合實際試驗對其控制系統進行驗證;共計完成了18條曲線, 19個項目的試驗,對其控制系統及控製程序進行了充分的考驗。分享友人