耦合振型 的英文怎麼說
中文拼音 [ǒugězhènxíng]
耦合振型
英文
coupled modes-
3. as to vehicle - bridge system coupling vibration, this difficulty in engineering industry, it was abstractly summarized in this thesis, and introduce a method to establish and resolve equations about such coupling vibration, bring forward a flow chart to write correlative software ; with the help of ansys, make out some work about preparatory simulation, so as to research basic point of chicle - bridge system coupling vibration
3 、對車橋耦合振動這一業內的難點進行了理論上的分析,引入了一種建立和求解車橋耦合振動系統方程的較為典型的方法,提出了一份自行編製程序的流程簡圖;借用ansys軟體對該橋做了車橋耦合振動的初步模擬計算,探索車橋共振的基本特點。The dynamics of the feed system are also an integral part of feed system coupled modes.
供應系統動力特性也是供應系統耦合振型的主要部分。It shows that the modal shape and mode frequency are highly coupled with the viv response of a marine riser with low mass ratio
該模型的計算結果表明,立管的模態振型、模態頻率與渦激振動響應高度耦合,並且對于低質量比的情況尤為明顯。Based on the traditional model of vibrat ory machines , an electrome chanical - coupled model of motor - vibrator y machine system is established, and a reasonable quantitative expla ining of engineering phenomena in transi ent processes is given by digital simula tion according to it. the, mechanism of self - synchronous vibration, and vibratory synchronization transmissi on is proposed in this paper
本文對此進行了專門的研究,在傳統的振動機械模型基礎上建立了電機-振動機械繫統的機電耦合模型,利用該模型進行數值模擬對過渡過程中的一系列實際現象做出了合理的定量解釋,揭示了自同步振動和振動同步傳動的機電耦合機理。Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed
帶冠葉片不但能調頻,還可以利用葉冠之間的摩擦效應來耗散能量,達到減振的目的.帶冠葉片在離心力場中形成一整體,其整圈葉片振動特性不同於單個孤立葉片,需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性,提出了採用波傳播理論和模態綜合技術,結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的,並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應While a 3d assembly model of blade - disc structure was established, a finite element model for calculating the vibration characteristics during blade - disc coupling was set up by taking into consideration of the coupling action of contact stress between blade and disc
摘要在建立了葉片與輪盤三維裝配模型的基礎上,考慮了由於裝配產生的接觸應力與葉片輪盤之間的耦合作用后,建立了葉片輪盤裝配耦合的振動特性計算的有限元模型。In the former, two computing modes of fem are built, aimed at the coupling of variable - profile pylon, curved - axis arch and flexible cable. the software algor feas is used to get the results of dynamic numerical analysis, such as natural vibration frequency, vibration mode, dynamic displacement, dynamic stress, which are compared with the results of shaking table test research to draw to important conclusions. these conclusions provide not only potent basis for the design and construction of nanjing century tower, but also reference for other pylon - cable - arch structures similar to the project
在動態數值分析中,針對世紀塔變截面的塔身,曲線軸線的拱以及柔性拉索相互耦合時清況,建立兩種有限元計算模式,利用有限元軟體algorfeas得到動力數值分析的結果,如:自振頻率、振型、動位移、動應力等等,再和振動臺試驗研究成果作比較,得到一些重要的結論,從而為南京世紀塔工程的設計和施工提供強有力的依據,而且為類以於世紀塔工程的其它塔-索-拱結構的設計也提供一定的參考。It is found that the existence of a maximum in the snr is the identifying characteristic of the sr phenomenon. " the main - unexpected - - novelty is the dependence of the effect on initial condition. " ( report of the phys. rev. e referee ) the coherence resonance ( cr ) and the stochastic resonance ( sr ) phenomenon in a globally coupled fitzhugh - nagumo neurons model are studied
Ohyreve審稿人語)在對fhn神經模型的共振現象研究中,我們考慮一個存在耦合的多個神經細胞相互作用的神經網路,利用平均場理論和概率躍遷理論,得到了神經系統在無信號和有周期性信號的兩種倩況下的靜息電位。Using vogel ' s wear index as the rail side wear index, the paper analyzes the side wear variations of rail head when the parameters in the wheel / rail system vary, analyzes the influences of track irregularity on rail uneven wear on gauge corner emphatically. this paper analyzes the rail side wear dates measured by track division of shan hai guan since 1990, then gains the relationship between side wear and traffic volume and sums up the characteristics and regularities in the formation and development of side wear. in the end, some measures for regarding the side wear on curves are put forward
從輪軌摩擦、輪軌接觸幾何關系、輪軌接觸應力和輪軌蠕滑等方面對鋼軌側面磨耗機理進行了探討,從軌道幾何參數、機車車輛運營條件等方面對鋼軌側面磨耗的影響因素進行了重點分析和總結;應用輪軌系統動力學,建立了輪軌空間耦合振動時變模型,採用vogel側磨指數作為鋼軌側磨指標,系統分析了輪軌參數變化的情況下,軌頭側面磨耗的變化規律,重點分析了軌道不平順對鋼軌不均勻側磨的影響;對山海關工務段1990年以後現場測得的曲線鋼軌側磨數據進行了分析,通過擬合得到了鋼軌側磨量與運量的關系曲線,並總結了曲線上股鋼軌側面磨耗的特徵和發生、發展規律;最後提出了一些減緩曲線鋼軌側面磨耗的措施。Periodic, quasi - periodic and chaotic motions show on alternately when the rotating speed is near to 2 / 3 0. combined step - by - step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward. based on riccati method, the increment transfer matrix method is used in a multi - mass model
將逐步積分法與傳統傳遞矩陣法相結合,提出了增量傳遞矩陣法思想,文中相該方法應用於多段集中質量模型,並結合riccati法,推導了汽輪發電機組軸系彎扭耦合振動響應計算的矩陣表達式,並開發了一套較完善的汽輪發電機組彎扭耦合振動分析軟體。Based on a jeffcott rotor system with rigid support, the differential equations of coupled vibrations are established
針對存在質量偏心的單圓盤jeffcott轉子模型,通過拉格朗日方程,建立了彎扭耦合振動模型。This model is used to describe the bending / torsion coupled vibrations of a rotor and an elastic stator due to the contact
應用該模型,重點研究了動、靜碰摩引起的轉子彎曲和扭轉非線性耦合振動。This paper combine the properties of railway bridge to establish the model of vehicle and three - dimension finite model of wan zhou yangtze river bridge individually, then according to the basic hypothesis and through the relations of geometry displacement compatibility and force and adopting the mode superposition to establish the coupling model of vehicles and bridge
本文結合鐵路橋梁的特點,分別建立了車輛模型和萬州長江大橋的三維有限元模型,根據橋梁結構的基本假設,採用模態綜合法,通過輪對與輪軌之間的幾何相容關系和力的關系建立了車橋耦合振動模型。Finally, the analysis examples were presented combined with some real data from hydroelectric set, they showed that numerical simulation of fluid - solid coupling for vibration in this paper is more available and the natural frequency of guide vane in water is lower than that of in air
運用ansys有限元軟體計算了水輪機導葉在空氣中的振動特性以及液固耦合振動的頻率和振型,並對二者進行比較,分析了影響振動的因素。通過算例表明,所採用的有限元數值模型合理,計算結果正確。Main differences and torsional property of system response are compared with and without considering torsional vibration. and the influences of several factors on rubbing rotor are discussed thoroughly. the feasibility that torsional vibration characteristic and nonlinear characteristic are used for the faults diagnosis of rubbing rotor is proved by the analysis results fully
建立了碰摩轉子的彎扭耦合振動模型,利用標準的四階runge - kutta法對碰摩特性進行了數值分析,比較了有無考慮扭振的情況下,系統振動響應的主要區別和相應的扭振特性,並詳細討論了幾種因素對碰摩轉子彎振和扭振特性的影響。Nonlinear characteristics such as bifurcation and chaos under three kinds of models are compared. and nonlinear characteristics of coupled vibrations under the model supporting with bearings are analyzed detailedly. the acquired torsion properties and nonlinear characteristics of cracked rotor have good assistant effect on diagnosing cracked fault
以重力占優的開閉裂紋模型為研究對象,研究了裂紋轉子升速過程的彎扭耦合振動瞬態響應特性及影響因素,探討了1 3階及1 2階亞諧共振特徵;在考慮轉速渦動情況下,比較了三種模型的分叉與混沌等非線性特性,並詳細分析了軸承支承模型的彎扭耦合振動非線性特性。On the basis of three - dimensional axially symmetrical soil model and taking consideration of vertical wave effect of soil layer, the interaction between visco - elastic layered soil and an integral pile or a multi - defective pile with arbitrary bottom boundaries and its engineering application is systematically studied in this dissertation
本文從三維軸對稱土模型出發,較系統地對考慮樁周土豎向波動效應、任意樁底支承邊界條件下、成層粘彈性土中完整樁及變阻抗樁與土縱向耦合振動理論及其工程應用進行了研究。Thirdly, a simplified model neglecting the radial displacement of saturated soil is established and an analytical solution for vertical vibration of the soil - pile system is obtained. by comparison the solution with available viscoelastic solution, the differences are illustrated as well as its applications
3 、建立了飽和土中忽略徑向運動影響的簡化模型,得到簡化模型下樁土縱向耦合振動解析解,並與考慮徑向運動影響的模型及胡昌斌的模型加以比較,分析了幾種模型的異同及適用性。The response of the vibration system is solved. the torsional and flexural vibrations of swing movable teeth transmission system is analyzed and the elasticity of driving shaft, the elasticity of output shaft bearings and the elasticity of movable teeth are taken into consideration. the dynamic analyzing model of swing movable teeth transmission system is established
對擺動活齒傳動系統的彎曲振動、扭轉振動及其耦合效應進行了分析,並綜合考慮了系統的輸入軸的彈性、輸出軸軸承的彈性以及活齒與激波器、內齒圈的嚙合彈性等的影響,建立了擺動活齒傳動系統彎、扭耦合振動的動力學分析模型。Using theory of strength of track structure and vehicle - track coupling vibration dynamic model, we analyze the effects the different thickness of ballast act on relevant track structure parts and deduce the rational thickness of ballast
本文應用軌道結構強度計算理論及車輛軌道耦合振動動力學模擬計算模型,分析了不同道床厚度對相關軌道結構部件的影響,得出了合理道床厚度的建議值。分享友人