振動節型 的英文怎麼說

中文拼音 [zhèndòngjiéxíng]
振動節型 英文
nodal pattern
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 節 : 節構詞成分。
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  1. Iv ) revolute joint element, nonlinear spring - damper element, 3 - d 5 points contact element are applied to simulate the revolute restriction between two caterpillar boards, suspension nonlinear vibration, contact between wheels and caterpillar boards, and contact between caterpillar boards and ground are considered respectively. drucker - prager material is employed to simulate reinforced concrete

    4 、應用大幅度轉動約束單元、非線性彈簧阻尼單元、三維五節點接觸單元分別模擬自行火炮履帶板之間的轉動約束連接、懸掛非線性振動及負重輪與履帶板之間的接觸和履帶板與地面的接觸問題；根據材料非線性理論，提出利用drucker ? prager材料建立土壤的非線性有限元模型。
  2. A method is put forward which selects modal dofs in a few points according to element strain energy coefficient. therefore, the selected modal dofs in a few points usually have large amplitude, which is conducive to be measured and the network training

    在選取少數節點的振型分量用於網路訓練時，提出根據單元應變能系數的大小來選擇節點，這些節點一般來講在振動中振幅較大，易於實測和用於網路訓練。
  3. There is an important step which between the simulation in theory and the debugging in industry locale must to be done, the step is electric simulation ( it ’ s also mean half - real simulation )

    同時，在理論模擬和實際現場調試之間，還有一個重要的環節就是電模擬模擬（即半實物模擬） 。設計、製作液壓振動系統的電模擬模型模擬系統也是工作的重要內容之一。
  4. As a new type of energy - saving equipment, the tubular heat exchanger with longitudinal flow of the shellside fluid ( thelfsf ) has many remarkable advantages. it betters anti - vibration and anti - smudge performance, enhances heat transfer efficiency, and decreases the shellside pressure loss. it also prolongs service lifetime, reduces the weight and saves material

    新型縱流殼程換熱設備作為一種新一代節能降耗設備，具有優良的防流體誘導振動性能、傳熱性能好、傳熱效率高、流體流動阻力小、抗結垢能力強、重量輕等優點，是鄭州大學「熱能工程研究中心」專利產品，為了加快該設備的推廣， 「中心」研發了hecad軟體系統，實現了新型換熱設備工藝設計、機械設計、零部件，圖及總裝圖繪制一體的cad軟體化。
  5. ( 三 ) under the dynamic load of the explosion, the numeric analysis has been done and achieve the rule as follow : ( 1 ) when the frequency of vibration is 0. 3hz, the acceleration of the slopes top gets the maximum ; so 0. 3hz is believed the natural frequency of the slope as a whole ; ( 2 ) the vibration of explosion can been magnified because of the condition of the landform, when the relative altitude is up to 45m, the acceleration of horizon gets the maximum ; when the relative altitude is up to 100m, the absolute value of acceleration and the deformation of horizon is larger than that in the bottom of the slope ; ( 3 ) in the period of forced vibration, at the top of the slope, the acceleration of horizon become larger and larger ; at the middle part of the slope, it becomes smaller ; ( 4 ) when the explosion velocity of is much little, the shallow part destruction is the primary deformation of the slope

    （三）採用模態疊加法針對爆破動力作用，進行邊坡的動力響應分析，得出了以下結論： （ 1 ）振動頻率為0 . 3hz時，坡面頂部水平向加速度峰值最大；綜合考慮，可認為該邊坡的自振頻率為0 . 3hz左右； （ 2 ）地形對爆破地振動存在放大作用，研究剖面的坡面，水平向加速度及位移在地形相對高差45米左右最大，而後隨相對高差的增高而減小，相對高差為100米時，水平向位移及加速度絕對值均大於坡腳； （ 3 ）強迫振動段，水平向加速度值隨時間變化的規律為：坡頂節點總的變化趨勢是越來越大，而坡體中部節點的變化趨勢是越來越小； （ 4 ）當爆破振速較小時，變形破壞的形式表現為坡頂表面滑塌型。
  6. Then experiment was processed to testify the calculated results. based on the theory of vibration mode, harmonic response and experiment, fea meshing, fea element and bound condition of expansion joint were analyzed. then a parametric fea modeling & post process software was developed by apdl and visual basic langrage

    本文採用有限元數值分析方法，利用大型商用有限元計算軟體ansys ，研究了基於結構參數化設計思想的波紋管膨脹節的振動模態和含波紋管膨脹節管系的振動響應分析方法，開展了波紋管膨脹節模態試驗驗證。
  7. Main research result : 1. to succeed in researching miniature pressure modulator, realizes integretion of electropneumatic conversion, high importation resistance, low power consumption, bear vibration and miniaturization by making use of physics / electricity characteristic design of piezo ceramics ; 2

    主要研究結果： 1 、利用壓電陶瓷的物理/電氣特性設計研究成功了微型壓力調節器，實現了電氣轉換、高輸入阻抗、低功耗、耐振動和微型化的統一。
  8. Some open problems for bob, hite quail population model presented by g. ladas in the first international conference for difference equation are still interesting to us. we obtain ne, results in section 4 for the oscillation and boundedness and persistence of this model, including and improving many kno, n ones

    Ladas在第一次國際差分方程會議上提出的關于bobwhitequail種群模型的一些公開問題仍是我們感興趣的問題；我們得到了該模型振動性和有界持久性等的新結果，包含改進了許多已知結果；這些結論闡述在第四節。
  9. But all designed software before in our country still have some weakness, for example, the conventional type of cam counld be projected by these software is very little, and used approximation by lines to curves of cam which have bigger error and more nodal points that result in chattering of principal axis. in furthermore, this software of designing cam in fact only has the function of cad. if you want to simulate and work over the designed cam in that software, you will find that you have to export it to other cad / cam system software ( e

    隨著數控加工在我國的深入開展，真正實現我國的凸輪cad cam就顯得非常必要，但以往的凸輪設計軟體還存在許多不足，如可設計的凸輪類型較少，大多集中於平面凸輪；且採用誤差較大、節點數過密的直線逼近法生成凸輪工作曲線，造成計算時間長，且加工中產生較大振動；同時這些凸輪設計軟體基本上只具有cad功能，如果想將設計好的凸輪進行模擬和加工，就必須將圖形輸出到其它通用cad cam軟體（如mastercam等）中，因此這些軟體在實際應用中總不盡人意。
  10. As the first successful experiment which has been conducted in china to test the unsteady aerodynamic forces in wind tunnel, the feasibility of the method is proved through numerous tests and abundant practice

    首次在國內成功實現了在風洞中測試橋梁節段模型顫振導數的強迫振動法，並通過大量的試驗驗證了本測試裝置的可靠性。
  11. Aimed at the rotor bearing system of 300 mw steam turbogenerator set and on the basis of establishing its concentrated general model with 8 supportings and 9 nodes, a study was carried out on the bending vibration response of the most left end surface of shafting and of the right end face of generator

    摘要針對300mw汽輪機組轉子軸承系統，在建立其8支承9節點集總模型的基礎上，對軸系最左端面和發電機右端面的彎曲振動響應進行研究。
  12. Modal analysis, frequency response analysis, random vibration analysis and vibration fatigue analysis are carried out based on the modified finite element model. the first natural frequency of pcb is 57 hz, and the dynamic response in the first natural frequency is the largest. weak points are also found

    為分析該印製電路板可靠性及設計缺陷，需對修改過的有限元模型進行模態分析、頻率響應分析、隨機振動分析及疲勞壽命分析，以全面了解該印製電路板的動態特性（包括:印製電路板的固有頻率、隨機振動響應情況） ，以及存在的薄弱環節。
  13. The efforts to be shown in the paper include : building on the mathematics model of electro - hydraulic shaking table, after the analysis of the dynamic characteristics of electro - hydraulic shaking table the conclusion that it is essentially non - linear is drawn ; according to the aforementioned characteristics and with the view to the actual research object, we present the outline of the system design and criteria of the electro - hydraulic shaking table servo - controller ; due to the research object we practically work over two control strategies and correspondingly scheme out two controllers, which is pid controller and human simulating intelligent controller based on ziegler - nichols parameters - adjust empiric formula ; we develop electro - hydraulic shaking table servo - controller, constitute entire hardware system platform and accomplish the correspond codes of the software which combine to complement its most functions ; the simulation of the adjust stability of controlling system and servo trailing control has been made by matlab, which compares the simulation results of the behavior of pid controller and human simulating intelligent controller

    本文的主要工作包括：從電液伺服控制系統的數學模型入手，對電液伺服控制系統的動態特性進行了分析，得出了其非線性本質的特點；根據電液伺服控制系統的上述特點，結合具體的電液式振動臺研究對象，提出了電液伺服控制系統的設計要點和振動臺伺服控制器的設計指標；結合研究對象，具體研究了控制器的控制策略，設計了兩類控制器，即基於ziegler - nichols參數整定經驗公式的pid控制器和仿人智能控制器；開發了電液式振動臺伺服控制器，建立了完整的硬體系統平臺並完成了相應軟體的編寫，實現了主要的控制功能；對控制系統的穩定調節控制和伺服跟蹤控制進行了matlab數字模擬，對pid控制器和仿人智能控制器的控制行為分別進行了模擬實驗並做了比較。
  14. Through the model the inverse dynamic problem of stewart platform is solved and a foundation is made for stewart platform control used for 500m lt. meanwhile all the restrained forces acted at joints are found which provide analysis condition for the mechanism design. a simplified resultant force acted on the cabin by stewart platform is given which makes it possible to eliminate the dynamic coupling between the two subsystems by means of active vibration control

    基於newton - euler方法，建立了充分考慮動平臺慣性、支腿慣性、關節摩擦等因素的stewart平臺控制動力學模型，解決了已知動平臺運動規劃，求關節驅動力的動力學逆問題，為準確實現lt500m原型stewart平臺控制奠定了基礎；解出了各關節處的約束反力，為平臺機構設計提供了力分析條件；簡化給出了平臺對饋源艙的反作用力，使得採用振動主動控制技術消除兩級子系統之間的動力耦合成為可能。
  15. The software can design many conventional type of cam, concluding cam - plate with middle follower, cam - plate with offset follower, cylindrical cam, dividing cylindrical cam, and cylindrical cam with space curve, etc. in forming working curves of cam - plate, used the approximation by arcs which can lessen the nodal points on curves of cam uttermostly in same error, so it reduce the computation time and relieve the chattering of principal axis. in former times, to cam mechanism, the follower only has one direction motion

    本軟體可以設計的凸輪類型較多，包括了對心移動從動件盤形凸輪、偏置移動從動件盤形凸輪、圓柱凸輪、圓柱分度凸輪和空間曲線柱形凸輪等，其中對盤形凸輪的工作曲線採用了難度較大的圓弧逼近演算法和等誤差演算法，這樣就可以在相同的允許誤差內最大限度的減少生成曲線的節點數，減少計算時間，同時可以大大減輕加工中的振動現象。
  16. Based on guyed mast fem model of 4 - node space cable element and space beam element, the method to analyze along - wind induced nonlinear oscillation in the time domain is established, which breaks the traditional analysis in the frequency domain using stochastic theory on the linearization premise. and the results of imitation analysis reflect the essential character of guyed mast

    在將桅桿結構離散為空間四節點索單元和空間梁單元的計算模型的基礎上，提出了桅桿結構順風向風振響應的非線性時域分析方法，突破了傳統的用隨機振動理論對桅桿結構進行頻域分析的方法，模擬分析結果表明能夠反映桅桿結構的基本特徵。
  17. ( 3 ) the probability causal model and the connective model based on the probability causal for the fault diagnosis of steam turbine generator - set are put forward by the analysis of the relationships between the probability causal model and the parsimonious cover set theory

    （ 3 ）通過概率因果模型與節約覆蓋集理論關系的分析，建立了一種用於汽輪發電機組振動多故障診斷的概率因果模型和基於概率因果的聯接模型。
  18. Dynamic performance of pingsheng bridge and the ground - anchored suspension bridge model, which has the same structural parameters as pingsheng bridge, is calculated. furthermore, the influence on dynamic performance for pingsheng bridge of structural parameters, such as rise - span ratio of main cable, dead load

    6 .針對大跨度自錨式懸索橋可能存在的風致振動，對平勝大橋進行了節段模型和全橋模型風洞試驗研究，研究表明:平勝大橋具有足夠的抗風穩定性。
  19. Unique 8 kneading heads function. vibration massage mode in the seat cushion. air enforce the adjustment for the back and the chair position

    根據人體流線型設計外型美觀典雅大方採用高級皮料精製而成功能獨具8個推拿頭坐墊帶振動功能氣動式調節背部傾角及坐椅的高低位
  20. ( 2 ) according to the analysis to the single - hole model of blasting, the displacement of the nodes near blasting holes is large but decay rapidly. and this far away from blasting holes is relatively small, decay relatively slowly. after having rising rapidly, the speed of the nodes near blasting holes decays at once

    （ 2 ）通過單孔爆破模型分析得出，炮孔附近節點位移幅值很大，衰減迅速，遠離炮孔節點位移幅值較小，衰減較慢；炮孔附近節點速度迅速上升后馬上衰減，遠離炮孔節點表現出大阻尼振動性狀。
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