beam rotation 中文意思是什麼

beam rotation 解釋
射束旋轉
  • 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，...
  • rotation : n. 1. 旋轉；輪轉；循環。2. 【天文學】自轉。3. 【物理學】旋度。4. 輪流，輪換；交替。5. 【農業】輪作；【林業】輪伐（期）。
  1. In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented

    本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。
  2. Thus it is necessary to study moment resistance, rotation stiffness and rotation capacity of the joints. in this paper, six specimens on end - plate composite beam - to - column joints and two specimens on end - plate composite beam - to - column joints were designed to subject to static load. the factors of m - characteristics about semi - rigid composite joints, including bolts, profiled steel sheeting, beam, column, stiffen rib and reinforcement, are studied

    本文設計了6個端板型鋼-混凝土組合樑柱節點與2個端板型純鋼樑柱節點，通過對這些試件的靜力荷載試驗，重點研究了端板型鋼-混凝土組合節點的彎矩-轉角性能的影響因素，包括高強螺栓、壓型鋼板、型鋼梁、型鋼柱、加勁肋，以及混凝土板內縱向鋼筋配筋率等。
  3. In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector

    在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件： （ ? ）小的3db帶寬b ，即最小的主瓣寬度； （ ? ）最小的旁瓣最大峰值a ； （ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。
  4. In our experiments, these complexes, produced in supersonic beam expansions, are amenable to high resolution resonant two - photons ionization spectroscopy, which make it possible to obtain detailed information on their electronic - vibrational states. through resonant ionization spectra and together with time - of - flight mass spectrometry in supersonic molecular beam, the internal rotation for ch3 and intermolecular vibration for atom ar ( or n2 ) in the complexes ( c6h5ch3.

    實驗中採用了高解析度的共振電離光譜技術和超聲分子束技術，通過共振電離光譜和飛行時間質譜技術的手段探明了復合物c _ 6h _ 5ch _ 3 … n _ 2 、 ar的電子態、振動態以及甲基（ ch _ 3 ）內轉動的詳細情況。
  5. Now, it is important to develop the composite blade researching, two measures including analysis methodology and finite methodology are provided. in this text, the finite rotation composite beam theory developed by hodges and his co - workers, during the late 1980 ' s, is adopted in order to research rotor of helicopter. a liner and two - dimension finite analytic measure is used to calculate the section characteristic and strain of the blade ; a semianalysis methodology is used to calculate the sensitive degree of section characteristic

    以giavotto的線性二維有限元分析模型為基礎考慮了復合材料槳葉的結構和變形特點，計入了剖面翹曲的影響，在此基礎上編制了具有八節點等參元復合材料槳葉剖面剛度計算的有限元程序，分析計算了復合材料梁的剖面剛度、彎曲中心、剪切中心；並利用半解析法進行剖面剛度、剪切中心、彎曲中心的參數靈敏度分析。
  6. A ld pumped lbo / bbo / nd : yag 266nm all - solid - state ultraviolet laser and purple and a ld pumped ktp / bbo / nd : yag 266 nm all - solid - state ultraviolet laser were designed respectively ; 1. 5mw and 2. 0mw average output power were obtained respectively when maximum input power of ld was 1. 3 w. reasons of being elliptical beam and 45 ? rotation for the beam were also explained

    設計出一臺lbo bbo nd ： yag266nm全固態紫外激光器和一臺ktp bbo nd ： yag266nm全固態紫外激光器；用1w的ld作為泵浦源，在最大抽運功率為1 . 3w時，分別獲得了平均功率為1 . 5mw和2 . 0mw的266nm紫外輸出。
  7. In the experiment, the author get many conclusions on the fixed beam strengthend by the two means through analysing the experiment result, including strain, displacement, angle of rotation and damage character

    通過對試驗梁應變、撓度、轉角、破壞特徵等方面的分析研究得出了許多關于這兩種方法加固固支梁的結論。
  8. To analyze the stress performance ( moment - rotation relationship ) of semi - rigid beam - to - column connections in steel structures, we can build an analysis model based on 3d finite element method

    摘要分析研究鋼結構半剛性連接的受力性能（彎矩轉角關系） ，可以採用實體有限元建立分析模型。
  9. Bar - end rotation stiffness of continuous beam and its application in moment distribution method

    連續梁的桿端轉動剛度及其在力矩分配法中的應用
  10. Through the test of the separating sieve ' s and beams vibration acceleration, the dynamic bending moment, torque and shearing force as well as the analyze of each parameter by dividing rotation speed range from 300 r / min to 600 r / min of the main shaft, the change regularity of the vibration of the separating sieve, the vibration and the dynamic load on dangerous cross section with the change of rotation speed of the main shaft is obtained. research shows that there exits apparent relevance between the vibration as well as the dynamic load of the main beam and the vibration of the separating sieve. the vibration of the separating sieve mainly affects the composition of low frequency of the vibratio n of the main beam, appropriately amending the vibration acceleration of the separating sieve, the loading and vibration of the mam beam can be directly improved

    通過分檔測試主軸轉速在300 600r min范圍內分離篩與梁的振動加速度、梁所承受的動態彎矩、扭矩和剪力以及各參量的時頻域分析，得到了主軸轉速與分離篩振動、主梁的振動及其危險截面的動態載荷間的變化規律，研究表明梁的振動和其所承受的動載與分離篩的振動之間具有明顯的相關性，分離篩的振動主要影響梁振動的低頻成分，適度改善分離篩的振動加速度，可直接改善梁的負載和振動特性。
  11. Stability analysis of relativistic electron beam with angular rotation propagating through nonneutral plasma background

    帶轉動的相對論電子束在非中性等離子體柱狀波導中傳輸的穩定性分析
  12. Rotation capacity of semi - rigid composite beam - to - column joints with flush endplate connections

    平端板連接半剛性樑柱組合節點的轉動能力
分享友人
分享到 Line

分享到臉書