模態的 的英文怎麼說
中文拼音 [mótàide]
模態的
英文
modal-
In this article, considering the character of the one - dimensioned continuum and the cross - section, the varied quotiety of the strain can be presented as the mode function to identify the damage. and inversion of the elastic wave is presented to detect the injures when the area is the variable of the inversion, for the pip usually buried under the earth or enwrapped into the protection make the detection difficulty by the mode of vibrancy. the influence of the area must be considered if the exactness is the pre - requisition
在論文中，考慮到壓力管道的一維性質，提出用應變模態改變變化率的方法對一維的結構進行損傷識別；同時考慮到在實際的工程和現場測試中，壓力管道大多深埋在地下或者有外在的保護膜，不宜進行模態的檢測，所以也考慮利用彈性波的方法對壓力管道的性質參數和截面性質進行反演識別，從而得到我們感興趣的東西，達到損傷識別；一般，在利用彈性波反射方法進行損傷檢測中，不考慮截面效應對彈性波的衰減影響，這就對損傷檢測造成一定的影響，本文考慮截面效應的影響，通過實驗來確定截面效應系數。Modal analysis of the fin heat exchanger using fem
翅片式換熱器模態的有限元分析By numerical simulation, the servo system in this paper greatly reduces the aeroelastic stability. the structural flitter added to the system can reduce the coupling effect of servo system and structure mode and increase the flutter velocity
通過數值模擬發現，伺服系統會降低原有氣動彈性系統的穩定性，結構陷波器的引入可以減弱伺服系統和結構模態的耦合。The result of optimization and analysis show : 1 ) across - axis sensitivity is smaller, less than 2 % of the primary axis sensitivity ; 2 ) the first mode is dominant at primary axis, which reduce intersectional coupling ; 3 ) when damp ratio is between 0. 3 and 0. 7, accelerometer has better dynamic characteristic
分析結果表明此種結構的具有： 1 ）橫向靈敏度小， x 、 z方向的橫向靈敏度均不到敏感方向的2 ； 2 ）在敏感方向上，一階模態起主導作用，其它模態的影響較小，有利於減小交叉耦合的影響； 3 ）當阻尼比毛為0 . 3 ? 0 . 7時，傳感器具有較好的動態特性。In addition, the ao index released by american climate prediction center ( cpc aoi ) fails to reflect the summer ao mode. in this paper, the time series of the leading principal component of the summertime ( june - september ) surface level pressure anomaly field over the domain poleward of 20 n is defined as the summertime ao index
此外，美國氣候預測中心發布的全年北極濤動月指數不能表現夏季北極濤動型，本文將北半球熱帶外地區（ 20 n以北）夏季（ 6 - 9月）海平面氣壓場eof主模態的時間序列定義為夏季北極濤動指數。In this paper, features of decadal variability and the possible mechanism of sea - air system in the pacific are investigated by using upper - ocean temperature, heat storage and wind stress data, the main results are as follows : the most pronounce decadal sign exists at about 160 meter in depth in the western pacific. there are significant decadal abrupt changes in temperature from surface to deep in the subsurface at about 1980. with different depth in the subsurface, there exist 4 types of abrupt change modes, their generation is closely related to the decadal sign which originates from the east of north pacific and propagates along the south - west subduct ion route
研究表明，太平洋次表層海溫最強的年代際信號在熱帶西太平洋約160m深處，此信號在1980年前後從上至下，先後經歷了一次顯著的年代際突變過程，而且隨深度的不同存在著四種不同的空間突變模態，這四種模態的形成與北太平洋海溫異常的西南潛沉路徑有著密切的聯系。On the surface of msta, there exists true dipole mode in the indian ocean, that ' s to say that if the temperature anomaly in the western indian ocean is positive, it is much likely that there is negative anomaly in the eastern indian ocean. dipole mode also exists in the pacific as that in the indian ocean. by virtue of the walker circulation and the similar circulation above the indian ocean, it is showed that the air - sea interaction events in the tropical pacific and the indian ocean develop with each other at the same time
由於在次表層海溫距平極值面上，熱帶西、東印度洋的海溫距平呈真正意義的偶極子模態，即當西印度洋海溫距平為正（負）時，東印度洋海溫距平為負（正） ，偶極子模態的海溫距平分佈在熱帶太平洋同樣存在，兩大洋海溫距平的偶極子模態間有密切的聯系，結合walker環流和印度洋上空的類似walker環流，進而指出熱帶印度洋和太平洋海氣相互作用事件是協調發展的。When you ' re finished with insert mode, press the esc key to return to command mode
當你被用完插入物模態的時候，按esc鍵回到命令模態。( 3 ) in order to prove multi - point exciting experiment good, we employ traditional ergography ( hammering method ) to make experiment, peak value pick - up method to modal identification, and compare identification result by hammering method with vibration table experiment. the result revel that vibration table experiment can obtain larger energy and more adequately excite
在重頻、密頻時、在試驗試件的結構巨大，需要大的能量激勵才能充分激出完全模態時、在一激勵點為某階感興趣模態的節點時，都需要用多點激勵的方法。Both advantages of rocket engine and air - breathing engine are integrated into one kind of propulsion system, called rocket - based - combined - cycle ( rbcc ), which has multiple operating woke modes, including ejecting, subsonic combustion, supersonic combustion and rocket mode, with each mode operating at varying flying stage. rbcc has prominent potential of high efficiency and low cost, and so it is recognized as an advanced propulsion system of future single - stage - to - orbit reusable spacecraft and hipper - sonic missile. it has been broadly investigated in foreign countries and has been progressed into small and full - scale flying stage
火箭基組合動力循環（ rbcc ， rocketbasedcombinedcycle ）將傳統的火箭發動機和吸氣式發動機的優點集中組合到一個具有多種工作模態（包括引射、亞燃、超燃及火箭模態）的發動機里，在不同的飛行階段啟用不同的工作模態，因此具有大幅提高航天推進系統經濟性與高效性的潛在優勢，並可能發展成為下一代單級可重復使用航天器以及高超聲速導彈武器的動力系統。Hybrid wave mode control of timoshenko beam vibration
梁的行波與模態的混合控制方法Conversion formula between the strain mode and displacement mode is induced for the cantilever beam. present residual force method is improved and the new method is better than the old one for the engineering practice
推導出位移模態和應變模態的換算公式，改進了現有的殘餘力向量法，使之在工程實際應用中有更現實的意義。Interpretation of the relative importance of the higher modes is difficult since the higher frequencies tend to be closely spaced.
較高模態的相對重要性的說明也是困難的，因為較高的頻率趨于擠在一起。The effect of different depth crackle to curvature mode was stood out as an emphasis
文中重點突出了深度不同的裂紋對曲率模態的影響。Based on mass - spring model, a method of automatic mode - selecting method is presented to solve the difficulties of selecting corresponding modes close to the excitation frequency, in adaptive perturbation for mistuned bladed disks
摘要針對自適應攝動法在失諧葉盤受迫振動分析中，選擇接近激振力頻率的相應模態數目難于控制的問題，基於質量彈簧模型，提出一種自動選擇模態的方法。Conditions of normal mode realization are deduced and optimized model with the multivariate mode indicator function as the target function is built. through solving the maximal eigenvalue problem, the original shaker force vector of appropriation is reached. then the realization approach of the optimal shaker force vector based on single shape principle is proposed and at the same time the automatization of normal mode appropriation is realized
對于模態物理分離技術的多點正弦激振純模態試驗技術，尋求其最佳激振力矢量是最為關鍵的環節，本文先推導出純模態實現的條件，建立以多變量模態指示函數為目標函數的優化模型，通過求解最大特徵值問題，得出適調純模態的初始激振力矢量，再提出以單純形原理為基礎的最佳激振力矢量的實現方法，同時也實現了純模態適調過程的自動化。Research on structural damage diagnosis based on structural high order local modes
基於結構高階局部模態的損傷診斷研究Curvature model based many damage locations identification of reinforced concrete beam
基於曲率模態的鋼筋混凝土梁多點損傷位置識別The conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions
常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振Abstract : the conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness. the requirement creates an over - conservative controller and enlarges chattering. the proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on - line estimation used in smc to cancel the slowly varying uncertainties by the mechanism of time delay. the reaching law approach is used to get the conditions and band of quasi - sliding mode. the new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions
文摘:常規變結構控制用於不確定系統，須利用不確定性界確保系統的魯棒性，控制器過于保守且抖振變大.本文把未知干擾和參數不確定性的影響等效為名義系統的外界干擾，利用時延技術對干擾進行在線估計，並將估計值引入到變結構控制中，從而抵消掉系統中的慢變不確定性，利用離散趨近律法，推出了準滑動模態的存在條件及其帶寬.該方法克服了以往控制方法中須已知不確定性界的限制，且不必滿足匹配條件，用較低的控制增益保證了系統的魯棒性，降低了準滑動模態帶即削弱了抖振分享友人