等剛度的 的英文怎麼說
中文拼音 [děnggāngdùde]
等剛度的
英文
isoelastic-
During the course of the example computing this paper also discusses how to get the rigid measure of the solid tires, equivalent mass of the boom and equivalent rigid measure of the boom
在實例計算過程中也給出了實體橡膠輪胎的剛度和階梯懸臂梁的等效質量、等效剛度的近似計算方法,這些演算法使理論計算簡單可靠。Based on the numerical simulation and accuracy analysis to previous slab ' s test with the ansys program, the study of composite wall, with various detail design under potential load action respectively or jointly is carried on and the wall ' s atress behavior and failure mode is obtained, also the influence to wall ' s stiffness and bearing capacity by kinds of factors, including wall ' s shear span ratio, member ' s section, bar arrangement, etc. based on the hammer blow test and stiffness test, a 1 / 3 scale ten - bay model ' s modality parameter and elastic deformation characteristic is analyzed
在對密肋復合墻板運用ansys ~ ( ( ? ) )程序進行數值模擬、分析驗證的基礎上,對典型組合墻體在不同連接構造和不同荷載效應組合作用下的受力形態和破壞模式進行研究;計算分析了復合墻體剪跨比、邊框柱截面尺寸、邊框柱配筋大小以及墻板內肋梁肋柱配筋等諸多因素對密肋復合墻體承載力及剛度的影響,得出其變化規律。Oversteer in the “ textbook ” sense is the difference between cornering stiffness at front and rear, taking into account tyre characteristics, geometries, bush rates, etc, etc
轉向過度在教科書中是指前後輪轉向剛度的不同,需要考慮到輪胎的特性,幾何學,襯套比率等。In allusion to disjoint of damage model in material, member and structure level, two times poa - based global damage model is presented. this model includes synthetically stiffness, intensity and ductibility degrading by equivalent stiffness decay before and after damaged
針對材料、構件和結構層次的損傷模型存在著脫節問題,本文介紹了基於兩次poa分析的整體損傷模型,通過結構受損前後等效剛度的衰減來綜合考慮結構剛度、強度和延性的退化,並通過算例來驗證該模型。In this paper, the author combines the theory analysis with the experiment research method, and discusses the seismic behaviours, 3d elaborate finite element analysis and simplified model analysis of a kind of multi - function tall building - " sub - shearwall supported by frame ", which is applied widely today. the main contents are as follows : in order to observe the failure process and the earthquake response of the complex structure, and to analysis the seismic behaviour of the structural system and structural members, a 1 / 20 cement mortor model of a complex tall - building which is about to be built was producted and the shaking table test of this model under 26 sorts of earthquake loads was made. using sap2000 finite element analysis program, a 3d analysis model was built in computer, and the elastic time - history analysis of the model was done
本文採用理論分析和試驗研究相結合的方法,研究了目前應用較多的綜合性大廈? ?框支分區剪力墻高層商住樓的抗震性能及空間精細分析和簡化分析方法,主要內容為以下幾方面:對一擬建的復雜高層建築結構,採用1 20比例的空間整體模型,進行了26種工況下的模擬地震振動臺試驗,觀察了結構的破壞過程和地震反應,分析了結構及構件的抗震性能;建立了結構的精細空間模型,利用sap2000n大型有限元分析程序對結構進行了彈性時程分析;通過有限元分析與試驗結果的對比,對結構的抗震性能和抗震能力做出綜合評價,認為該結構由於轉換層上部去掉部分樓板,既可滿足建築設計的通風、採光等要求,又可達到協調結構轉換層上、下樓層抗側剛度的效果,是一種較理想的有多道抗震防線的結構型式。For rotary axes can be made less expensive, easier and more compact than a linear guide at the same precision level, a rotary arm that carries a diamond tool combined with a fast tool servo are used to replace the straight lines
由於旋轉抽與同等精度的直線導軌相比,具有製造難度小、成本低及結構緊湊等優點,所以採用具有快速伺服機構的金剛石刀架擺臂代替直線導軌進給運動方式。Mechanical impact dynamics is used to analyse the production and spread of stress wave when hydraulic pile hammer hammerblows piles, the stress wave influence the course of driving pile. slender hammer that is equal to wave resistance of the pile can bring ideal stress waveform. when the hammer weight is constant, efficiency of driving pile can be increased by means of selecting drive cap and cushion pad of different rigidity to match the hammer according to various geological condition and the pile. the structure and principium of hydraulic system of double - acting hydraulic pile hammer with double cylinders is studied in detail in the paper, the hydraulic system and electric control system of six - ton - double - actin hydraulic pile hammer with double cylinder is designed on the basis of it
本文應用沖擊機械繫統動力學分析打樁過程中錘體與樁撞擊時應力波的產生、傳播以及該波對沉樁過程的影響。認為與樁等波阻的細長狀錘體能夠產生理想的應力波波形;在樁錘重量一定的情況下,可針對不同的地質情況和樁,通過選擇不同剛度的樁帽和樁墊與其匹配來提高打樁效率。本文對雙缸雙作用液壓打樁錘液壓系統的結構和工作原理進行了深入的研究,並在此基礎上設計出六噸雙缸雙作用液壓打樁錘的液壓系統和電控系統。The synthetical stiffness of ball bearings is obtained by combination the contact stiffness with the oil film stiffness. the concept and the calculation menthod of the equivalent stiffness are presented in this paper
將油膜剛度和接觸剛度組合,推導了滾動軸承的綜合剛度,提出了滾動軸承等效剛度的概念和計算方法。Recently i bought a spear which is similar with the third one from left. i guess they ' re in late qing dynasty
前幾天我剛買了一把和左起中等長度的第三把有點相象的槍頭,我猜這些東西應該到了晚清Based on the experiment of full - sized cshb walls under lateral and vertical loads, initial crack - resisting stiffen formula was deduced by considering the influence of concrete beams, concrete core columns, structural columns, vertical pressure and window ( or door ). the results calculated from the formula were fit well with the experimental results. by the analysis of displacement at initial crazing, probability statistical mode and its parameters of relative displacement angle were presented
在介紹和總結本課題的室內足尺寸單片墻抗側力性能試驗的基礎上,考慮了圈樑、芯柱、構造柱和墻體正壓力、開門窗洞等因素對抗側剛度的影響,提出了綜合各種因素的初裂抗側剛度公式,與試驗結果具有很好的一致性;結合試驗的初裂位移分析,給出了層間相對位移角的概率統計模式及相應的統計參數,提出了小砌塊建築層間位移角的控制標準。The existing methods of structure design of concrete pavement with lean concrete base are analyzed, proving that the equivalent stiffness method is proper for calculating load stress but not for thermal stress
對貧混凝土基層混凝土路面現有結構設計方法的應力計算進行了分析,發現等剛度法用於雙層板路面的荷載應力計算是可行的,但用於溫度應力計算會引起較大的誤差。Based on the theory of stochastic finite element, the structural parameters of frame - shear structure including stiffness and mass and damping are simulated to be stochastic variables. by solving recurrence equation of stochastic finite element, the duration curve of mean value and standard deviation of seismic response can be obtained for every floor of frame - shear structure. an analysis is thus given to the effects of independent variation and simultaneous variation of structural parameters on the seismic dynamic response of frame - shear structure. as shown by the results, with regard to frame - shear structure, the effect of variation of strucural parameters on the change of mean value are chiefly the increase of standard deviation of response. variation of stiffness will cause the response of frame - shear structure to variate greatly ; variation of mass shows less effect ; and variation of damping shows insignificant effect. the effects of simultaneous variation of various structral parametres on seismic response are only slightly greater than the effect of stiffness variation alone
以隨機有限元理論為基礎,將框剪結構的剛度、質量、阻尼等結構參數為隨機變量.通過求解隨機有限元的遞推方程,得到框剪結構各層的地震動力響應均值和標準差歷時曲線.分析結構參數單獨變異,以及同時變異對框剪結構地震響應的影響.研究結果表明,對框剪結構而言,結構參數的變異對響應的均值變化影響都不大,主要是增大響應的標準差.剛度的變異性將引起框剪結構的響應發生大幅度變異,質量的變異性影響稍小,阻尼的變異性影響不顯著.結構各參數的同時變異,對框剪結構地震響應的影響,僅比剛度單獨變異的影響稍大Because the different stiffness match of front and rear suspension is very influencing to the ride comfort, optimal model of ride comfort is developed, regarding the rms of driver ’ s acceleration as the objection, regarding the stiffness of front and back suspension as optimal variable, regarding quiet flexibility 、 dynamic flexibility 、 frequency and dynamic load as nonlinear constraints. by matlab program and using sqp, the optimal match of front and back suspension ’ s stiffness is achieved, this optimal model consider not only request of quiet 、 dynamic flexibility 、 frequency and damp, but also security of run and peace of road, it is closer to the fact than other models which only consider partial restriction
由於前後懸架垂直剛度的不同匹配對汽車行駛平順性影響較大,論文建立以駕駛員垂直加速度的均方根值作為汽車行駛平順性優化目標值、以前後懸架垂直剛度作為優化變量的優化設計模型,並輔以靜撓度、動撓度、頻率、動載荷等非線性約束,使用序列二次規劃法,利用matlab編制優化程序,求得前後懸架垂直剛度的最優匹配值;此優化模型不僅包含動靜撓度及頻率和阻尼的限制,還考慮到汽車的行駛安全性和道路友好性,比文獻報道的只考慮部分約束的優化模型更切合實際情況。2. the complex stiffness corresponding to three bearing conditions of semi - infinite elastic subgrade, finite elastic soil layer and end bearing at the pile bottom are theoretically investigated, and analytical expression of the complex stiffness corresponding to finite elastic soil layer bearing condition is obtained. the special influence of bearing conditions on dynamic response at pile head is then discussed
2 、對剛性支承、有限厚度土層支承和半無限空間支承三種樁底部支承情況下樁底支承復剛度和樁周土底分佈支承復剛度的解析表達及其特性進行了推導論證,通過假定樁底土為與樁等截面的土柱推導求得有限厚土層支承條件下樁底支承復剛度的解析解,並據此分析了不同底部支承邊界對樁頂響應的影響。At the end of this section the paper specifies three possible failure modes of the ultimate resistance, depending on the ratio between the flexural resistance of the flanges and the axial resistance of the bolts. this numerical analysis includes many nonlinear structure behaviors such as contact status nonlinearities, geometric nonlinearities and material nonlinearities
文章就連接翼緣板剛度的變化和設置加勁肋等構造措施對連接的高強度螺栓內力、翼緣板間的接觸壓力、撬力和節點剛度的影響進行了對比分析,並對有限元的計算結果進行了多項式擬合。This method was used to diagnose the structural damage in numeral simulation analyses and testing analyses. the resolution of analyses and comparison indicated that this method not only can locate the damage ( including stiffness decreasing and mass increasing ), but also can locate the new damage without the integral property, so it is possible to be used in the long - time inspecting
本文利用該方法,通過對模擬計算和實物試驗的幾種損傷識別結果的分析、比較,得出以下結論:殘余能量差不僅能較好的定位損傷(剛度的降低和質量的增加等) ;而且還可以在沒有初始的完好指紋的情況下,利用有損傷結構之間的殘余能量差確定新的損傷,因此該方法可以用於結構的k期監測。At last, some conclusion has been obtained. at present the effect of cable and its pre - stress is not very clear. based on the rule of conversation of energy, it is proved to be right in theory that the stiffness of the linear elastic structure is larger with the increase of its pre - stress
針對目前關于索在結構中的作用以及索中預應力的增加對結構剛度的影響到底如何等討論,本文從能量守恆原理出發,從理論上推導證明了在線彈性范圍內,結構的剛度隨預應力的加大而提高這一重要結論。Translation modes are similarly independent of the rotational support stiffnesses. large contact ratio do not mean lower mesh force. if either the number of sun or ring gear is not multiple of planet gear, system will run effectively, with lower impaction of tooth mesh in and out
研究表明:扭轉支撐剛度的變化影響系統的轉動模態,徑向支撐剛度(行星架的除外)的變化影響系統的位移模態;齒輪間重合度大並不等於輪齒間的受力情況好;行星輪與內齒圈齒數不為行星輪個數的整數被時,輪齒的嚙入、嚙出對系統的沖擊小,系統的效率高。It is constructed that radial impact and rubbing dynamics differential equations of the rotor system having the nonlinear rigidity on the unsteady and non - linear oil film. the bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. the bifurcation diagrams, maximum lyapunov exponent diagrams, poincar maps, phase plane portraits, trajectories of journal center, time - history curve, amplitude spectra diagrams of the rotor motion are used
( 2 )建立了具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學微分方程,並應用含高階余項的非線性動力方程的線性化數值法研究了此類系統響應的復雜動力學行為,利用轉子響應的分岔圖、最大lyapunov指數曲線、 poincar截面映射、時域波形、相軌線、軸心軌跡、幅值譜等圖形分析了系統響應的周期運動、擬周期運動、倍周期分岔、混沌等運動形式的轉化與演變過程,重點研究了非線性剛度、轉子轉速、偏心質量等系統參數對碰摩故障轉子系統的分岔和混沌行為的影響。According to the characteristics of the series - base - isolation structure, the calculation formulas for the equivalent damp and equivalent stiffness of the structure were given, and the desirable equivalent damp could be obtained by rational design of multi - level yield shear stress of composite bearings
根據串聯基礎隔震結構的特點,給出了該種隔震體系的等效阻尼、等效剛度的計算公式;將串聯隔震支座設定為多個屈服剪力水平,得到了較好的等效阻尼。分享友人