滯點線 的英文怎麼說
中文拼音 [zhìdiǎnxiàn]
滯點線
英文
stagnation line-
The hysteresis loops were detected, it is found that the remanent polarization and the conceive field of the ceramics deceased with the dope of ba2 +. in the composition range of mpb, the conceive field exhibit the lowest value
測試了樣品的電滯回線，發現batio _ 3的摻入有效降低了nbt基陶瓷的剩餘極化強度和矯頑場，在準同型相界組成點，矯頑場達到最小值。Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account
依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型，對中國古代木結構中的典型構造如：柱腳在礎石頂面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究： （一）通過木柱石礎靜摩擦試驗，測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律； （二）通過單柱承載力試驗，測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量； （三）通過柱架低周反復荷載試驗，測定了柱架的抗側移剛度、柱架恢復力特性及滯回曲線、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數； （四）通過斗?低周反復荷載試驗和受壓試驗，測定了古建築木構件與木構件間摩擦系數，斗?抗側移剛度，斗?恢復力特性及滯回曲線，斗?抗壓極限承載力及受力變形規律； （五）通過抬梁式殿堂間架模型振動臺試驗，測定了殿堂木構架結構自振周期，地震反應振形、阻尼特性及阻尼比；按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量，對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。As air conditioned room is nonlinear and has dominant time - delay, the feasibility of using fuzzy logic controller in variable frequency air conditioner is discussed based on the using of conventional pi controller, both the pi controller and the fuzzy logic controller are studied by simulation
另外，針對空調房間具有非線性、大時滯的特點，在採用常規的pi控制的基礎上，探討了模糊控制及其改進演算法在變頻空調控制中應用的可行性，並分別進行了模擬分析研究。Based on the experiment results, the damage form of abnormal exterior joint are summarized, characteristics of hysteresis curve are studied, the effect of stirrup ratio and height of column section and beam section on anti - shear property of abnormal joint are discussed, working mechanism of abnormal exterior joint is researched, the conclusion that the anti - crack and bearing capacity of abnormal joint are studied by analyzing the minor core of abnormal exterior joint is proposed, the basic data is provided for the design formula of abnormal joints
根據試驗結果，總結了異型邊節點的破壞形態，研究了節點滯回曲線的特徵，討論了節點核芯配箍率、樑柱截面高度變化對異型邊節點抗剪性能的影響，分析了異型邊節點的受力機理，提出應以「小核芯」為分析單元來研究此類節點抗裂和承載力的建議，為異型節點設計公式的建立提供了基礎數據。In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented
本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。S. consideration of interaction on the nonlinearity about the material, the geometry, and the boundary of the columns subject to axial force. biaxial hending, and torsion, an analytical model of hysteretic curve of columns is presented, based on the sectional cross - sectional discrete yieldsurface inodel, the bond slip in anchorage zones regarded as the boundary nonlinearity of a memher. and the iterative procedure of displacement of inner nodes on the basis of the hamonization of displacement
5 、根據構件分段截面離散的屈服面模型法，把錨固區粘結滑移看成構件的邊界非線，以及基於位移協調的內結點位移迭代法，建立了能考慮構件壓（拉） 、雙彎、扭的材料、邊界、幾何非線性相互影響的柱空間滯回曲線分析模型。Simultaneously cross - linked and quaternized 4 - vp - co - nbuma was also investigated as humidity sensing materials and showed good linearity, high sensitivity, good high stability at high humidity and high temperature, and durability to organic solvent, etc. sensors based on 4vp - co - buma ( vp / buma = l / l ) with crosslinking and quaternization reaction of 17 hours exhibited a change of three orders of magnitude ( 104 ~ 107 ) in impedance over the range of 95 % rh ~ 30 % rh, showing high sensitivity, and little hysteresis was observed
元件具有響應線性度好，靈敏度高，濕滯小、高溫高濕穩定性好、耐無水乙醇有機溶劑性能好等優點。其中，交聯季胺化17小時配料比為1 1共聚物濕敏元件，在33 rh 95 rh濕度范圍內，阻抗變化達3個數量級（ 10 ~ 7 - 10 ~ 4 ） ，響應靈敏度高，幾乎無濕滯。Alkali recovery is an effective way dealing with the black - liquor in pulp mill. black - liquor evaporation and combustion in, alkali recovery are complicated industrial processes. they have characteristics such as strong coupling, non - linearity, large time delay, parameter examining difficulty, etc. and people require more effective control system for the processes "
堿回收是紙廠處理黑液的有效方法，造紙堿回收過程中的燃燒和蒸發工段是復雜的工業過程，具有復雜性、非線性、大時滯和參數檢測困難等特點，而且人們對于控制系統的控制性能也提出越來越高的要求，常規控制技術已經沒有辦法滿足生產的需要。In this dissertation, we studied the tcra1101plus total station position system, which introduced the principle and characters of the instrument ' s closed loop tracking system. also we explained the cause of prism ' s position error and brought forward mathematic model to correct, moreover, the good results has been drawn form the expenriments. the kinetic survey system have been realized, which the sampling rate attain more than 5hz and the position precision can be less than 2mm on condition that targeted - point moving slowly at the velocity below 2cm / s. having finished the survey system to examine whether the fine - tuning stewart platform in good status, we have finished mensurating the position reference of the fine - tuning stewart platform and the offset of the prism
在此基礎上研製了多臺儀器在線控制高頻采樣動態跟蹤測量系統，采樣率大於5hz ，在跟蹤小於2cm / s低速運動目標時，測量精度好於2mm ；完成對饋源二次精調系統的檢測，包括對二次精調平臺位置基準的標定和觀測棱鏡偏心差的測定；設計不同動態測量實驗，對全站儀動態跟蹤的誤差來源和特點進行了分析；從實驗角度，對全站儀的測量時滯及其穩定性進行了測試分析，給出了定量的結果；比較了全站儀和計算機的內部時間系統，發現兩者存在較大差異。The analysis on the test result shows that the temperature distribution in cfst members caused by solar radiation is nonlinear, and the nonlinear character is most evident when center point of concrete gets its lowest temperature. the temperature of the center point is affected by various directions, especially the strong potential. in the side exposed to the sun in the afternoon, apart from the center point, temperature varies laggardly when the point of concrete in the same series is more close to the center
結果表明，日照作用下截面的溫度場為非均勻場，混凝土中心的溫度達到最小值時，截面溫度場的非線性特性最明顯，圓心點的溫度受各個方向溫度的共同作用，更多地受到強勢方向的影響;下午時處在向陽面的各系列，同一系列上混凝土各點溫度變化隨直徑縮小趨緩，越靠近圓心，溫度變化越緩和，對外部環境（包括氣溫與日照）的影響呈滯后現象越明顯;而在下午時處在背陰面的各系列除圓心點外，同一系列上越靠近圓心的混凝土測點，溫度變化越緩和。Based on the features of the spraying - cup, such as large lagging, strong coupling, serious nonlinearity the system applies the fuzzy control method
根據旋杯噴塗大遲滯性、強偶合性和非線性的特點，系統採用了噴塗參數模糊控制的方法。In general, the ceramic equipments tunnel kiln has features of purely hysteretic, big inertness, nonlinear and complexity. its accurate mathematics model is usually very difficult to be obtained
陶瓷生產設備隧道窯普遍具有純滯后、大慣性、非線性、時變復雜等特點，其精確數學模型往往很難獲取。First, it applies fuzzy logical in the abstract and non - linear dealing ability ; second, it applies neural net in the self - study and any functions approaching ability ? through combining above two ability, it can find a best p i d non - linear controlling regularity and achieve controlling on line of the unknown subject etco therefore, it not only can strengthen robust and intelligence of the system, but also make design simple and easily be requiredo in addition, the thesis also does many works on procedure of upper - computer and basic - controller and the whole system designed can be put into work immediately
根據啤酒發酵過程具有大慣性、時滯和非線性等特點，本論文還提出一種基於神經網路的模糊自適應pid控制方案，它一方面利用模糊邏輯的「概念」抽象能力和非線性處理能力，另一方面利用神經網路的自學習能力和任意函數的逼近能力，通過兩者的有機結合尋找一個最佳的p 、 i 、 d非線性組合控制規律，以實現對未知對象進行在線控制，並具備適應控制環境變化的能力和自學習能力等。The rule about water flow in the unsaturated soil and the soil - water characteristic curve are described in this thesis in the first time step during the numerical simulation, the permeability coefficient is calculated according to the initial water content of the unsaturated soil, because of as shown in the soil - water characteristic curve has the hysteresis phenomenon
闡述了非飽和土中水流動的基本規律和土水特徵曲線。由於土水特徵曲線具有滯后的特點，提出了根據初始含水量來確定數值模擬初始時步非飽和土的滲透系數。Abstract : according to the characterestic of resistance furnace temperature control, temperature rising one - way control, large time delay and time - variation of parameter, using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler. in order to increase control system precision, it gives a fuzzy variable k, and sets parameter self - adjusting fuzzy control system. this system can on line self - adjusting controller parameters according to the error and variations of the error. it makes the system steady precision improved
文摘:根據電阻爐溫控制的特點，即只有升溫單向控制、滯后較大且具有參數時變性，利用模糊推理合成法建立模糊模型並進行模糊控制器設計，為提高模糊控制的精度，引入模糊變量k ，構成參數自調整模糊控制系統.該系統可根據誤差和誤差變化在線自動調整控制器參數，使系統的穩態精度得到改善According to the characterestic of resistance furnace temperature control, temperature rising one - way control, large time delay and time - variation of parameter, using method of fuzzy compositional rule of inference establish fuzzy model and design fuzzy cntroler. in order to increase control system precision, it gives a fuzzy variable k, and sets parameter self - adjusting fuzzy control system. this system can on line self - adjusting controller parameters according to the error and variations of the error. it makes the system steady precision improved
根據電阻爐溫控制的特點，即只有升溫單向控制、滯后較大且具有參數時變性，利用模糊推理合成法建立模糊模型並進行模糊控制器設計，為提高模糊控制的精度，引入模糊變量k ，構成參數自調整模糊控制系統.該系統可根據誤差和誤差變化在線自動調整控制器參數，使系統的穩態精度得到改善The control of the ball mill pulverizing system in the 200mw unit in panxian power plant is researched in this paper. fuzzy control police most has application in the situation that it is difficult to establish object model. it has better stability and robustness
本文以盤縣發電廠200mw機組的球磨機制粉系統的控制為研究對象，針對球磨機具有的純滯后、大慣性和非線性、數學模型難以建立且隨時間緩慢變化等特點，常規控制方法難以取得良好的控制效果。Based on behavior of joint core under cyclic reversal load, according to actual measurement load - displacement hysteresis loops, slip of longitudinal reinforcement passing through joint and shear deformation of joint in a serial of beam - column subassemblage tests, the typical slip hysteresis model of longitudinal reinforcement passing through joint and typical shear deformation hysteresis model of joint are proposed in this paper
本文以節點的受力特性及規律為基礎，基於若干樑柱組合體低周交變加載試驗的實測節點恢復力滯回曲線以及從中分離出來的貫穿節點的梁筋滑移變形結果、節點剪切變形結果，分析總結得到有一定代表性的梁端剪力與貫穿節點梁筋滑移之間和梁端剪力與節點剪切變形之間的滯回關系模型。And this algorithms have been proved to be valid by computer analogize for two different model. after a detailed analysis of the glass furnace, put award a method of disassemble multivariable control : the upper levels use fuzzy supervise control, provide reference signal for lower level ; the lower level select and use a modified self - regulating fuzzy controller or a double closed - loop controller for time - sluggish system
在分析窯爐特性的基礎上，以溫度系統為例，根據其被控參數多、大滯后、非線性等特點，提出分層分區的智能控制策略：上層採用模糊監督控制器，為下層提供參考信息，下層根據控制要求及被控對象特性分別採用了一種改進的自校正控制演算法和一種適合於滯后過程的雙環模糊控制器。For the nonlinear two - point boundary value problem with both time - delay terms and time - advanced terms driven by the optimal control theory, we build a sequence of nonhomogeneous linear two - point boundary value problems according to the successive approximation approach of constant differential equation
再利用常微分方程的逐次逼近法，將由系統的最優控制問題得到的即含有時滯項又含有超前項的非線性兩點邊值問題化為非齊次線性兩點邊值問題族。分享友人