模態分析基礎 的英文怎麼說

中文拼音 [mótàifēnxījīchǔ]
模態分析基礎 英文
element of modal analysis
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 析 : Ⅰ動詞1. （分開; 散開） divide; separate 2. （分析） analyse; dissect; resolve Ⅱ名詞（姓氏） a surname
  • 礎 : 名詞（墊在房屋柱子底下的石頭） plinth
  1. Relating closely to the main problem of the high sidewall and wide span underground cavities excavation stability of xiluodu hydroelectric project, the evolution characters of geo - stress field in deep - cutting gorge and the whole features of the stress field, strain field and plastic failure zone around the underground chambers after excavation are studied systematically in the dissertation, based on a great deal of data gathered in field investigation and taking the flac3d v2. 0 software as basic computation tools. meanwhile, in the course of research, the new methods of dynamic numerical simulation are summarized and applied. furthermore, the effects of rock mass qualities, initial geo - stress field and excavation procedure on surrounding rock mass stability are discussed

    本文緊密結合溪洛渡水電工程大跨度、高邊墻復雜地下廠房洞室群，施工開挖過程中和開挖后圍巖穩定性研究這一重大課題，在詳盡的野外地質調查工作和對大量基礎地質資料的整理與分析基礎上，以目前國際工程地質界公認的最新通用軟體flac ~ （ 3d ） 2 . 0版作為基本計算工具，從整個壩區地應力場的研究開始，通過動態數值模擬分析這一新的模擬思路，系統地研究了深切峽谷區地應力場多階段的特徵和演變規律，進而對左、右岸地下廠房洞室群開挖全過程中圍巖應力場、變形場和塑性破壞區的變化特徵，進行了全過程動態數值模擬研究，並詳細討論了圍巖質量、初始地應力場、施工開挖順序對大型地下洞室群圍巖穩定性的影響。
  2. By using the model analysis method and hammer test, the model parameters and model shapes are obtained based on the force and response signal processing

    本文利用試驗模態分析技術，通過沖擊錘激振試驗，對激振力信號和響應信號處理的基礎上，獲得機床結構的模態參數和振動模型。
  3. To meet this challenge, a research project was supported by ministry of communication and bv shanghai zhenhua port machinery co. ltd. focusing on analysis of tdtcd ( traditional design theories of crane drums ) the paper has studied the impacts of features under the binding force of wire ropes, the end - plate and rope slot. this study is based not only on the thin shell theory and viscoelastic mechanics to calculate the strength and stability of drum, but also on an experiment with technology in " state of act "

    本文結合交通部重點科技項目「港口起重機鋼絲繩傳動件高性能技術研究」和上海振華港機股份有限公司委託項目「起重機焊接捲筒極限壁厚研究」 ，針對起重機捲筒傳統設計方法偏於保守的情況，以薄殼理論和近代力學為基礎，以現代試驗技術為研究手段，對鋼絲繩緊箍力作用下的外載特性、端板、繩槽等因素對捲筒強度和穩定性的影響進行了系統的理論研究，在深入開展捲筒強度、穩定性和實驗模態分析等試驗的基礎上，提出了有別于傳統方法的捲筒強度、穩定性計算方法。
  4. The paper focused on this task and covered these contents : realizing the real - time, online and dynamic simulation of the pneumatic operation system for marine main engine on the basis of analyzing the pneumatic devices " principle and by the means of multimedia technology ; describing dynamically the flowing direction of the controlling pneumatic line according to its logical relations in the three working conditions - starting, stopping and reversing

    本文圍繞此課題主要完成以下內容：在對manb & w主機氣動裝置原理分析基礎上，運用計算機多媒體技術，實現船舶主機氣動控制系統的實時、在線、動態模擬。針對主機的起動、停車、換向三種操作工況，依據氣路邏輯關系動態地描述了控制氣路的流向。
  5. 3. according to the principle of the finite element method, the research establishes finite element models of the vibration transportation mechanisms, some model parameters such as the frequency and vibration type are confirmed and validated by the modal analysis, then which analyzes dynamic - state response of the model and confirms the swing distributing of the models, thereby make the design of models precise. 4

    根據有限元法的理論，建立振動機構的有限元力學模型，對該力學模型進行模態分析，通過模態分析確定拋秧機振動形態和所需的頻率等參數；然後此基礎上再進行力學模型的穩態響應分析，研究該模態下機構的振幅分佈，以確定模型設計的準確性。
  6. In order to solve it radically, making power assembly of bj1036e2f1 light truck the research object and through dynamic simulation analysis of power assembly, this thesis obtains the distribution rules of forces of the bolts linking three shells mentioned above and the relation between forces of the bolts and rotate speed of engine. after finite element mode analysis of these three shells, inherent frequency and vibration model of shell of power assembly are gained, and thus its dynamic character is realized. based on computer simulation analysis, experimental model of power assembly is acquired by vibration test and strength test of shell of power assembly, and the relation of forces of the shell and rotate speed of engine and imbalanced mass of rotate components is studied

    為了從根本上解決該問題，本論文以bj1036e2f1輕卡動力總成為研究對象，通過動力總成的動力學模擬分析，找出了三殼之間聯接螺栓受力的分佈規律和螺栓受力與發動機轉速的關系；通過三殼的有限元模態分析，得到了動力總成殼體的固有頻率與振型，從而了解了動力總成殼體的動態特性；在計算機模擬分析的基礎上，通過動力總成殼體的振動測試和強度測試，得出了動力總成的試驗模態，並研究了殼體受力與發動機轉速和旋轉部件不平衡質量的關系。
  7. Based on the mode analysis of the stator of a ultrasonic motor using in - plane bending vibration, three kinds of in - plane vibration modes are obtained, and the influence of the motors structural parameters on its modal frequencies are discussed. some helpful conclusions are given, which provide theoretical basis for the design of this type of motor

    運用有限元方法對利用平面內彎曲模態超聲電機定子進行了模態分析，獲得了三種不同類型的面內振動模態，並討論了電機結構參數對其模態頻率的影響，在此基礎上得到了一些有益的結論，為利用平面內旋轉模態設計超聲電機定子提供了理論依據。
  8. Abstract : based on the mode analysis of the stator of a ultrasonic motor using in - plane bending vibration, three kinds of in - plane vibration modes are obtained, and the influence of the motor ' s structural parameters on its modal frequencies are discussed. some helpful conclusions are given, which provide theoretical basis for the design of this type of motor

    文摘:運用有限元方法對利用平面內彎曲模態超聲電機定子進行了模態分析，獲得了三種不同類型的面內振動模態，並討論了電機結構參數對其模態頻率的影響，在此基礎上得到了一些有益的結論，為利用平面內旋轉模態設計超聲電機定子提供了理論依據。
  9. 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。
  10. 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。
  11. 5. on the basis of the simplified calculating model this paper studied, the static and dynamic models analysis of milky way mcar were performed by using fem program sap93. the calculating results were compared with the experimental data and they are close

    在本文所研究的簡化模型的基礎上，利用有限元計算程序sap93對銀河拱型波紋鋼屋蓋進行了靜力和動力模態分析，並與試驗結果進行了比較，兩者符合較好。
  12. The main research is as follows : analyze and research the boundary constraint and the structure characteristic and segment the frame making use of the shell element, the pipe element etc. on the base of it the practical finite element model has been established ; analyze the mode of the frame by dint of the finite element model. and get the inherent frequency and the vibration mode of the frame. tentatively estimate the dynamic characteristic of the frame and analyze the inherent frequency that may be lead to the resonance

    論文的主要研究工作如下：分析研究車架的邊界條件和結構特性，並用殼、管等單元對該車架進行離散，建立一種切實有效的車架有限元模型；對該車架的有限元模型進行模態分析，求得其的固有頻率和振型，並對車架的動態特性做出初步評估，分析可能引起車架振動的固有頻率；在模態分析基礎上，研究發動機輸出的簡諧力引起的車架位移響應（即諧響應分析） ，以考察摩托車車架各部位的振動情況並與模態分析對比，分析是否與該車架的固有頻率相耦合而導致共振；在深入研究車架的模態分析及諧響應分析、清晰地認識了摩托車車架動態特性的基礎上，分析並提出了採用橡膠減震器對車架進行隔振的減震方法。
  13. Further more, a finite element analysis of flywheel rotor was made to increase the security of the flywheel ' s test, 9 modes frequency were taken out according to the rotating speed of the flywheel, the results can act as the theory base for the structure design and tests of the flywheel

    為了增加飛輪實驗的安全性，本文利用有限單元法對飛輪轉子作了模態分析，抽取了飛輪工作轉速范圍內的9階模態頻率，可作為飛輪結構設計和飛輪實驗的理論基礎。
  14. The aim of this paper is to relate structural inherent characteristic with exterior excitation, to wield experimental mode analysis technique and structure intension theory in order to separate structural leading mode under practical work state on base of spectrum analysis of exterior excitation and identification each rank mode parameter of structure. sequentially, the issue of space complex stress state in effect of static and dynamic coupling transforms into the issue of simple stress state ( under mode form ) in reciprocal effect of each rank mode in order to analyze structural dynamical intensity

    將結構本身的固有特性和外部激勵聯系在一起，運用實驗模態分析技術和結構強度理論，在對外部激勵進行譜分析和識別出結構各階模態參數的基礎上，分離出實際工作狀態下結構的主導模態，從而將一靜動耦合力作用下的空間復雜應力狀態問題轉化為各階模態相互作用下的簡單應力狀態（模態形態下）問題進行結構動強度分析。
  15. The process of modal analysis and the subspace alternate theory are introduced. comparison results show that as a simplified method equivalent sandwich plate method is accurate in precision. it also proved the study of free vibration property of space grids adopt ansys software is reliable

    通過對擬夾層板法和ansys模態分析的比較，表明了擬夾層板法作為一種簡化的計算方法，其精度是比較高的，同時也證明了採用ansys軟體進行網架自振特性研究的可靠性，在此基礎上採用ansys模態分析對網架固有振動特性進行了研究。
  16. In the paper, several main steps of dynamic design, such as model set up, test modal analysis and fe modal analysis, model revising, structure dynamic response analysis, sensitivity analysis and dynamic modifying, are discussed for the military diesel main parts : crankshaft, cylinder head, engine block, and their combined structure ? ngine block & crankshaft, engine block & cylinder head, engine block & crankshaft & cylinder head, thus the paper finishes the whole tache of dynamic design and realizes the whole flow of engine dynamic design

    發動機的剛度和強度主要取決于機體、曲軸和缸蓋，為此本文對上述三個主要零部件進行了試驗模態分析和有限元模態分析，同時對組合結構?機體+曲軸、機體+缸蓋也進行了試驗模態分析和有限元模態分析並用試驗結果對有限元分析結果進行修正和驗證，以保證有限元模型的正確性和可信性。在正確、可信的有限元模型基礎上，本文進行了動力響應分析，並在假想條件下進行了靈敏度分析和動力修改，完成了動態設計的整個環節，實現了發動機動態設計的整個流程。
  17. Firstly, a systematic study of lots of paper is made, modal analysis method that accord to frequency response function is introduced

    本文首先在綜述大量相關文獻的基礎上，系統總結了根據系統頻響函數進行模態分析的方法。
  18. In the paper, both the frequency and spectrum analyses and testing modal analyses have been investigated based on the research achievements of the internal and abroad. data interface software has been developed with the data picking box cras

    本文在對機械振動系統的國內外研究現狀進行綜述的基礎上，著重探討了結構動力特性中的頻譜分析和試驗模態分析兩個問題，並結合cras數據採集箱開發研製了數據介面軟體。
  19. This test provides the important bases for determining the design parameters and studying the combined bearing law of the y - pipe and surrounding rock modeling under actual bearing conditions and the construction technology of y - pipe tests of site structural model

    在大量結構分析基礎上，通過現場結構模型試驗對埋藏式岔管實際受力狀態和施工工藝的模擬，為設計參數取值、岔管與圍巖聯合受力規律研究，提供重要的科學依據。
  20. Based on vibration theories and the analysis of the model, using main vibration shape and the natural frequency, defined the concept of parameter sensitivity, and got its formula. based on this foundation, defined the concept of the appraisement coefficient of adjustment automobile rigidity parameter, and give the calculation equation

    根據振動理論，在模態分析的基礎上，通過利用主振型向量的正交性，導出參數靈敏度的概念，推導了參數靈敏度的公式。在此基礎上，提出了調整汽車剛度參數的評價系數，並給出了評價系數的計算公式。
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