laminated beam 中文意思是什麼

laminated beam 解釋
層積梁
  • laminated : adj. 由薄片疊成的；層狀的。
  • beam : n 1 梁，棟梁，桁條；（船的）橫梁。2 船幅；（動物、人的）體幅。3 （秤）桿，杠桿，（織機的）卷軸，...
  1. Its principle is : a laminated structure ( beam or plate ) with delamination consists of undelaminated region and delaminted region which can be divided to upper and lower parts. when a low - amplitude and high - frequency excitation has the frequency close to some part ' s natural frequency, this part will resonate and certain amount of mechanical energy will convert to heat so that the delaminated region ' s temperature exceeds greatly that of the undelaminated region. therefore the delamination can be located by means of infrared thermograph

    其原理是具有脫層的層合材料構件（梁或板）包含脫層區域及未脫層區域，脫層區域分為上下兩部分，若對層合材料構件施加小振幅、高頻率的振動激勵，當激勵頻率恰好接近其中一部分的固有頻率時，該部分就會產生共振響應，部分機械能將轉化為熱能，使脫層區域的溫度遠高於未脫層區域，藉助紅外熱像儀即可顯示出脫層的位置。
  2. The application of vibrothermography to ndt of laminated beam

    振動紅外熱像法在層合梁無損檢測中的應用
  3. Many optimization joints mid design methods which have been applied in actual engineerings are put forward, including the rc looped - beam joint, enforced - steel loop joint, joint between columns filled with steel tubes and rc beams, joint between columns filled with steel reinforced concrete and rc columns, joint between column filled with steel tube and composite beam, composite beam design method, prestressed laminated open - web truss mid so on

    其中，提出的較優化的鋼筋砼環梁節點、鋼加強環節點、鋼管砼柱與鋼筋砼柱節點、鋼骨砼柱與鋼筋砼梁節點、鋼骨磚柱與組合梁節點及組合梁設計方法、預應力疊層空腹桁架等，都已應用於實際高層建築中。
  4. Considering the state - of - the - art of such kind of structural system, the author gives a simulative analysis of the system with the feiyunjiang bridge in wenzhou zhejiang province as an engineering example using three methods : 3 - d beam or bar fem, classical plate / shell fem and virtual laminated element method. the virtual laminated element method may deals with many key issues in simply - supported - continuous system easily such as the matter of actual material or virtual material, mesh replacement

    針對國內外對先簡支后連續結構體系的研究普遍缺乏深度這一現狀，我們以浙江溫州瑞安市飛雲江大橋引橋為工程背景，運用空間梁桿系有限元、經典的板殼單元法以及虛擬層合單元法對該體系進行了施工模擬分析。
  5. Based on the results of previous researchers, the following instigations have been carried out in this paper : ( 1 ) employing a reasonable local resonance model which can accurately embody the heat - generation behavior due to resonance and vibration - heat mode in delaminated region, the dynamic response and temperature distribution in the small delamination region of a laminated beam are formulated. influence of the excitation frequency on the temperature gradient formation is analyzed numerically, and several meaningful conclusions are drawn. ( 2 ) for laminated plates with delaminations, due to complexity of the analytical solution, the finite element method is employed to analyze their temperature distributions and satisfactory results are also obtained

    本文在前人研究的基礎上，對此方法進行了進一步的探討，主要做了以下的工作： （ 1 ）選取合理的、能夠準確反映由共振而產生熱量的行為的局部響應模型，以及合理的振動熱模式，推導了一維層合梁小脫層區域的振動響應及梁的溫度分佈，並編製程序計算了該層合梁在激勵一段時間后的溫度分佈趨勢，分析了激勵頻率對溫度梯度形成的影響，得到了一些有意義的結論； （ 2 ）對於二維層合板，由於解析解的形式異常復雜，本文採用有限元計算軟體對其溫度分佈進行了分析，也得到了較為滿意的結果。
  6. Then, it deals with the theory of the finite element, experimental modal analysis and hilbert huang transform, which forms the theoretical groundwork of the following experimental investigation aiming at analyzing the effect of the transducer debonging on the dynamic response of composite laminated cantilever beam

    再次，採用壓電元件做傳感器的復合材料懸臂梁結構為試驗對象，利用模態分析、 hht變換的方法，對壓電元件與復合材料之間的脫膠損傷對結構動態特性的影響進行試驗研究。
  7. Bend of the laminated beam with shape memory alloy

    形狀記憶合金復合材料層合梁的彎曲
  8. Considering the influence of electrostrictive nonlinear piezoelectric effect, electroelastic nonlinear piezoelectric effects and geometric nonlinearity, the mathematical model of piezoelectric laminated beam was obtained

    考慮材料的電致伸縮和電致彈性壓電效應以及幾何非線性導出壓電層合梁的數學模型。
  9. In this paper, firstly the influence of the delamination upon the natural frequencies of a laminated beam is studied in detail. by partitioning the delaminated beam, its natural frequencies are obtained

    本文首先詳細分析了層合梁的脫層現象對其振動頻率的影響，通過對脫層梁進行分區處理，得到了脫層梁自振頻率變化的規律。
  10. Numerical results reveal that the delamination decreases the natural frequencies of the laminated beam, especially for the lower order natural frequencies ; and short delamination has no appreciable influences on its natural frequencies

    計算與分析結果表明，脫層使得層合梁的固有頻率降低，且對低階的頻率影響較大；短脫層對梁的固有頻率並沒有明顯的影響。
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