模態分析法 的英文怎麼說
中文拼音 [mótàifēnxīfǎ]
模態分析法
英文
modal analysis method- 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
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
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Also, this paper studies the amendable methods of dynamic numeration model, and bring forward that optimized method can revise finite element model, while validating the construed results of structural mode is almost equal to true values
本文研究了各種動力計算模型的修正方法,針對有限元程序,提出了用優化的方法實現結構動力有限元模型的修改,通過算例驗證,結構模態分析結果更接近於實測值。Based on a duralumin flexible beam with piezoelectric films attached, distributed parameter modal described by partial difference equations is builded, and then turned into a set of two order systems with the method of modal analyse. state feedback control and independent modal control is investigated. and simulation of the closed - loop system with thest two methods is performed in matlab
並用模態分析的方法,將系統的偏微分方程模型轉化成了模態模型;研究了狀態反饋和獨立模態方法;進一步完善了軟體界面以及軟體功能;在實際系統中,應用狀態反饋演算法,有效抑制了懸臂梁在受到外界瞬時脈沖擾動和激振引起的一階、二階模態振動。Application of gdr method to modal analysis for large finite element structure
法在大型結構模態分析中的應用Combining the results of modal experiment analysis on body - in - white and the results of finite element analysis, structural dynamics modification on the car front - body of a monocoque body has been made based on optimization algorithm
結合轎車白車身試驗模態分析和有限元分析的結果,成功地對某承載式轎車車身的車頭子系統結構進行了基於優化演算法的結構動力學修改。Based on modal analysis of piezoelectric smart laminated plates, an fem based inverse algorithm of the time history of impact loads by piezoelectric modal respondence is presented
摘要基於對智能層合板結構的模態分析,提出由結構的壓電模態響應反演瞬態荷載時間歷程的有限元方法。A method based on the eigenvalue decomposition technique, known as modal analysis of multi - infeed hvdc systems
最近,一種基於特徵值分解技術的模態分析方法,已用於交直流混合系統的電壓穩定性分析中。Static analysis was analogued by elasticity and ideally elastic - plasticity material, while kinetic analysis was carried out by the combination of modal analysis and kinetic reaction analysis hierarchical method
靜力分析採用彈性和理想彈塑性材料進行模擬,動力分析採用模態分析並結合動力反應譜法進行。The influence of the eccentricity mass moment, position of mass center and the bearing stiffness to the vibration characteristics of the rotor system is discussed in detail ; 3. to verify the exactness of fem and learn the principle of vibration of dredge pump further, the orbit of the rotor shaft of the pump in the dredger is measured, the measurement results show : the repeat of the orbit of the rotor shaft is very bad when dredge pump is in the dredging mud condition
模態分析確定了泥泵的振動特性(固有頻率和振型) ;諧響應分析確定了泥泵轉子軸在偏心力的作用下軸截面處的最大響應位移;研究了轉子軸的質心位置、軸承剛度和質量偏心矩對轉子軸振動特性的影響; 3 、採用軸心軌跡法,實船測量了泥泵軸工作時振動響應值。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。Based on the vibration test in yantan hydropower house, in this paper the author adopt les method which belong to three dimensions unsteady turbulent flow numerical analysis to simulate vibration resource characteristics of hydrogenerator set, a harmonic vibration model of powerhouse substructure is put forward to carry out firstly a precise modal analysis and dynamic response analysis for generator floor. the numerical calculation results agree well with the surveyed data in situ
本文結合巖灘水電站廠房振動的試驗研究,採用非定常湍流數值分析的大渦模擬方法進行混流機組水力振動振源模擬;提出一種水電站廠房下部結構簡諧振動模型,首次進行了發電機層樓板結構的精確模態分析和水力激振荷載下的動力響應分析,各項計算結果與實測數據吻合良好。In chapter 4, the model - building principle and calculating method of finite element dynamic analysis for large - sized assembled structure are discussed. the substructure model for hydropower house vibration analysis is established to obtain precise modal of generator floor. the harmonic vibration assumption is adopted to calculate house structure ' s dynamic response from hydraulic excitation force of hydraulic turbine generator unit
第四章討論了大型組合結構有限元動力分析的建模原則和計算方法,建立水電站廠房振動分析的下部結構模型,對巖灘廠房進行整體模態分析,較準確地得出發電機層樓板自振特性;同時引進簡諧振動假定,迸行了機組水力振動作用下的廠房結構的動力響應分析。Study on the applications of neurual networks to the building structures
模態分析法在建築結構損傷診斷中的應用研究Two modal analytic methods of structural vibration control
結構振動控制的兩種模態分析法Modal analysis method
模態分析法The dynamics analysis of the structural model both with and without viscous dampers are carried out by using the complex modal method, and the corresponding programs are compiled
在減震和非減震情況下,利用復模態分析法計算了結構模型的自振特性及地震響應,並編制了相應的地震反應分析程序。This article illustrates the judgement of veracity of the fea result using the methods of both formula and mode analysis through examples, and gives some correlative method based on experience
舉例說明了用公式法和模態分析法對有限元分析結果準確度的判定,並根據經驗列出了一些相關的判定方法。And the seismic response of the eccentric structure with viscous dampers is calculated by using the complex modal method. the numerical results show that the method is simple, clear, exact, reliable and suited to be generalized in design
並利用復模態分析法進行了具有粘滯阻尼器偏心結構的地震響應分析,計算結果表明該方法簡便明了、準確可靠,適于在設計中推廣。Finally, the random vibration analysis of the signal transform device is presented. experimental modal analysis is discussed briefly. the reasons why the relays on the printed circuit board were destroyed under random acceleration excitations are found out
本文最後對信號變換裝置進行了隨機振動響應分析,簡要探討了實驗模態分析法,找出了裝在印製電路板上的繼電器在隨機振動試驗中被損壞的原因,也介紹了結構動力模型修正技術的發展。Its main contents is as follow : firstly, it makes the discrete model for the subsystems of the scraper conveyor and the whole system with the finite element method ; secondly, the modal analysis method is used to obtain the inhere frequency and mode of the viberation ; finally, computer simulation is applied to get the displacement, velocity, acceleration and tension of the anyplace on the scraper conveyor for the four special working condition
其主要內容如下:用有限元方法建立了刮板輸送機子系統及整個系統的離散體動力學模型;應用模態分析法求解系統的固有頻率和振型;對四種非穩定工況下的動態特性進行計算機模擬,得出整個刮板輸送機在任意點的位移、速度、加速度和動張力。In frequency - domain, the background mode that has the most contribution to the buffeting energy of the structure is calculated using the background modal analysis method, thus the rms of the dynamic responses of long - span grid roofs is obtained. on the other hand, the rms of the dynamic responses is also obtained by direct integral method in time - domain. after the comparison of the results of two methods, several important conclusions can be made
在頻域內,採用背景模態分析法,通過計算得到對結構振動能量貢獻最大的一階背景模態,從而得到結構脈動響應的均方根值;在時域內,採用直接積分法求出結構響應的時間歷程,並且通過統計,同樣得到結構脈動響應的均方根值。分享友人