振型分解法 的英文怎麼說
中文拼音 [zhènxíngfēnjiěfǎ]
振型分解法
英文
modal analysis method-
The number of modes should be selected according to the participant coefficient of mode when calculating the internal force by the response spectrum method ; ( 4 ) the roof plate of large base which connect the towers together should be thick enough but not exceeding the proper scope that the towers and the large base can vibrate together, ( 5 ) in structures with large base and muti - towers, with increasing of the capacity of the large base, the inter - story shear force will increase while the inter - story displacement will decrease as to fulfill the ductility request to avoid the large base becoming weak story, but meanwhile, the upper story will turn into weak story, thus the coefficient r s should be within 2. 0 ~ 3. 0
採用振型分解反應譜法計算結構內力時應根據振型參與系數選擇振型避免漏選；大底盤多塔樓結構連接各塔樓的裙房屋面剛度應做得大些，以保證底部裙房與上部塔樓共同振動，但也不能過剛；大底盤多塔樓結構底盤承載力的加強將使底盤層剪力增大、層間變形減小，但易於滿足延性要求，在一定程度上可避免底盤成為薄弱層。但底部加強會導致薄弱層的上移，因此採取提高底盤承載力的措施的效果是有限度的，承載力系數s宜取為2 . 0 3 . 0之間。The seism response analysis of aqueduct bridge is analyzed with modal superposition method based on response spectrum which participant mode of vibration chooses the former 1 0 steps and combinatorial method was srss
渡槽的地震反應分析採用振型分解反應譜法，參與振型取前10階，組合方法用srss法，求得結構的地震作用效應。The third, according to code for seismic design of buildings ( gb50011 - 2001 ), the analysis of r. c. frame structure with special - shaped column is conducted under minor levels of ground motion by means of model analysis method and elastic time - history analysis method
第三，按照抗震規范（ gb50011 - 2001 ）的相關規定，用振型分解反應譜法和彈性動力時程分析法，對鋼筋混凝土異形柱框架結構進行了多遇地震下的計算分析。Two types of seismic calucation methods that are response spectrum analysis and time - history analysis are used to analyze the seismic response of kiewitt ' s suspen - dome under lateral seismic action and vertical seismic action. the result obtained by above - mentioned methods and the code method are compared. genetic algorithm method is proposed to optimize the prestress of suspen - dome
本文採用振型分解反應譜法和時程分析法兩種方法，對kiewitt型弦支穹頂預應力結構的水平和豎向地震作用下的地震效應進行計算分析，並同現行的規范和規程的規定方法一10重力荷載代表值簡化法計算結果進行了比較分析。For baise hydroelectric station, response spectrum of mode - superposition is applied in the dynamic analysis of intake tower. the rational conclusions are obtained
針對百色水利工程實際情況，採用了振型分解反應譜法對進水塔進行了動力分析，得出了合理的結論。By means of adopting structure mechanics method, quasi - static approaches, response spectral of modal combination approach and time - history analysis approach, the responding problems of static - dynamic load of structure are solved
分別採用擬靜力方法、動力分析中的振型分解反應譜方法與時程分析方法進行計算，通過三種計算方法的對比分析進水塔結構在地震力作用下的動力響應。3d nonlinear finite element method, compatible displacement method of different mesh and response spectrum of mode - superposition are used to analyze the intake tower - intake slope static and dynamic interaction, since the complexity of geologic structure. the rational results provide a feasible way for the similar projects analysis in the future
論文採用三維非線性有限元法、非一致網格位移協調解法、振型分解反應譜法對復雜地質條件下的百色水電站進水口邊坡與進水塔的相互作用進行了靜、動力分析，得出了一些合理的結論，為今後類似的工程計算分析提供了一種可行的方法。The model analysis technique of the symmetry model for a liquid filled piping system considering fluid - solid interaction
充液管道流固耦合對稱方程的振型分解法Analysis of the problems existing in operation mechanism of transformation for agricultural science and technology achievements
非比例阻尼隔震結構地震響應的實振型分解法In view of characteristics of the thick slab, the author suggests using not only the method of the modal decomposition but also time interval analyses and found the moment - shear model
鑒于厚板轉換層的受力特性，建議對其除用振型分解法進行計算外，還應用時程分析法進行補充計算，提出了層間彎剪的力學模型。The mode superposition method, based on equivalent linearization and forcing decoupling method of non - classical damping matrix of energy dissipation systems, is the just one. at the same time, iterative process will increase computing workload and forcing decoupling method increase error
基於等效線性化的強行解耦振型分解法在一定程度上符合此要求，但此方法存在著迭代計算工作量大、強行解耦增大計算誤差的不足。Earthquake and wind ), because of the damping matrixes of the two structures " motion equations are both non - classical, the dynamic equation ca n ' t be decoupled by the traditional real - mode analysis ( the mode - superposition method ). though, in this thesis the complex - mode analysis is used to solve the stationary and non - stationary random earthquake response of structures and their analytic expressions are got. on the basis of these expressions, the optimal parameters of the two structures " isolation & seismic decrease equipment are analyzed
目前，基礎隔震結構、 「加層減震」 （ tmd減震）結構正逐步應用於工程實際，由於這兩種結構在動力荷載（如地震、風）作用下動力方程中的阻尼矩陣為非經典情形，傳統的實模態分析方法（振型分解法）不能使動力方程解耦，因此本文運用復模態分析方法求得了結構在平穩和非平穩隨機地震激勵下結構隨機地震響應的解析表達式，在此基礎上進行了基礎隔震和tmd減震裝置參數的優化分析。The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study
為改善上述缺點，本文進行了以下的研究工作：在忽略耗能器附加質量的基礎上，推導出適用於耗能減震結構的攝動法，減少振型分解法在迭代計算過程中的工作量，加快計算速度；針對運動方程的強行解耦所產生的誤差，根據攝動法原理，對其進行一階攝動修正；為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差，引入狀態空間對系統進行復模態分析，並改進了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法；對于耗能器的數量和位置優化進行了一些探討和研究。Some helpful conclusions were made. based on the experimental results and theories research, the author put forward some valuable conclusions of this new type of frame - bent structures : ( 1 ) the initial force calculation method considering the lateral torsional coupled ; ( 2 ) the design and construction method of the high - strength concrete frame - bent columns under the high axial compression ratio ; ( 3 ) the construction method of the abnormal joints
在試驗和理論研究的基礎上，提出框排架結構的設計原則和具體的設計方法，主要有以下內容： （ 1 ）考慮平扭耦聯空間整體結構的振型分解法； （ 2 ）針對該類主廠房結構中應用高強混凝土的問題，提出應用高強混凝土的框排架柱的軸壓比限值及相應的構造要求； （ 3 ）對異型節西安建築科技大學博士學位論文點劃分不同區域分別給出其構造要求。Based on the characters of structure of the project, the structural style selection is given and analysis program of the latticed shell of double - layer hyperbolic pyramid cooling tower is programmed by the finite element theory and vb 6. 0 advanced programming language, which includes of 15 programs and directly aims at cooler tower and gives the forcing property by the computing program of the latticed shell of double - layer hyperbolic developed. analysis of static stress and temperature stress is given out by means of three dimens ions members finite element and numerical analysis, optimum design of member sections is given out by full stress, analysis of geometric nonlinear is given out by nonlinear finite element, analysis of earthquake stress is given out by the mode decomposition response - spectrum method, the latticed shell cooling tower compared with the reinforced concrete structure finally
該軟體包括15個程序，其針對性強，直接針對冷卻塔，對該結構進行了受力分析，具體分析包括：採用空間桿件有限元和數值分析方法對結構進行了靜力分析與溫度應力分析；採用滿應力法對應用於冷卻塔的桿件截面進行了優化設計；採用非線性有限元分析方法，並利用荷載增量法對該結構進行幾何非線性分析；採用振型分解反應譜法對網殼的自震特性及地震反應作了一定的研究；並且將具體工程的研究結果與鋼筋混凝土結構冷卻塔進行對比。In terms of the complex mode superposition method, the motion equations of general multiple degrees of freedom ( mdof ) discrete system can be transferred into the combination of many complex oscillators
摘要應用復振型分解方法，將非比例阻尼線性體系在地震作用下的動力方程求解問題轉化為若干個廣義復振子的求解與疊加問題。The thesis also studies the rule of space grid structure ' s internal force under the effect of earthquake by the mode - superposition in response spectrum
通過採用振型分解反應譜法求解結構的地震反應，研究了空間網格結構在地震作用下的內力分佈規律。Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result
西安理工大學碩士學位論文在水平地震作用下，並考慮風荷載組合，分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系，通過改變結構參數，運用空間有限元方法，進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ，以及「構件內力」 。結果表明:在等面積原則下，異型柱代換矩形柱后，結構剛度增大，側向位移明顯減小，地震反應力略有增加，框架柱軸壓比最大增幅小於8 % ，結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時，結構有利於抗震;水平地震作用力與整體坐標夾角為0度時，結構地震作用效應較大，屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐，側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小，構件內力增大適中，是一種抗震性能優越的結構體系:在抗震設防烈度較高地區（ 8度）和抗震不利的建築場地（ m類場地） ，採用異型柱結構體系時，應盡可能減輕結構自重，降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算，兩種方法所得結果基本一致。Trough comparing the analysis results of two kinds of calculation model, drawing the following conclusion : ( 1 ) this structure - design satisfies the standard ; ( 2 ) in analyzing the complicated high - rise building with transfer - floor, it is very necessary to adopt at least two three - dimension - space analysis procedures with different mechanic model and use the response - spectrum analysis and time - history analysis to analyze the structure earthquake response ; ( 3 ) the calculation model with elastic slab is better than the other with being infinitely rigid in the internal slab and zero in the external slab, which reflects the real load - function situation of the structure
通過比較兩種分析軟體的計算結果，得出以下結論： （ 1 ）本結構設計滿足規范要求。 （ 2 ）比較satwe和sap2000分析結果可知，對于復雜的帶轉換層的超高層建築結構應採用至少兩個不同力學模型的三維空間分析軟體進行整體計算以及採用振型分解反應譜法和時程分析法進行地震反應分析是必要的。 （ 3 ）在sap2000分析中，將樓板模擬成彈性板，與satwe分析中的樓板平面內無限剛平面外剛度為零的模擬方式相比，這種模擬方式能更真實的反應結構的實際受力情況。For aseismic analysis of lightweight steel structure, the response spectra and time history acceleration method are applied to calculate in the paper, the computational results show that the load responses of structural members are small at different earthquake intensity ; the sleeper workshop is very safe. it indicates the lightweight steel structure has favorable anti - seismic capability
同時採用振型分解反應譜法和時間歷程加速度法分別對整體廠房結構進行了抗震分析和驗算，計算結果表明：在不同烈度下結構的地震響應都不顯著，結構的構件是安全的，同時也說明了輕鋼結構是有良好的抗震性能。分享友人