無振動結構 的英文怎麼說

中文拼音 [wúzhèndòngjiēgòu]
無振動結構 英文
vibrationless construction
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 構 : Ⅰ動詞1 （構造; 組合） construct; form; compose 2 （結成） fabricate; make up 3 （建造; 架屋） bui...
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  • 結構 : 1 （各組成部分的搭配形式） structure; composition; construction; formation; constitution; fabric;...
  1. Compared with traditional mechanical and optic gyros, hrg has such advantages as no high speed circumvolving or moving parts in structure, no warm - up time and short start - up time, wide signal band in frequency, low excursion noises, great endurance in over loading, nuclear radiation and short time power off, small bulk, light weight, low power cost and long life, which is suitable for space applications

    與傳統的機械陀螺和光學陀螺相比，半球諧振陀螺具有如下優勢:結構上無高速轉子、無活動部件;不需預熱，啟動時間短;信號頻帶寬，漂移噪聲低;能承受大的機動過載;抗核輻射，並可經受短時間電源中斷的影響;體積小，重量輕，功耗低，壽命長，非常適合空間應用。
  2. The main features of the apparatus are focus on small volume, light weight, no iron core, no magnetic saturation and no ferreous resonance, moreover, related advantages such as the large range of transient and frequency response, excellent electrical magnetic compatibility, oil - free configuration, reliable insulation structure, are all the trends of current transformer in the future. meanwhile, it should agree with the future power gauge and digital, computer, automatic relay protection. it will meet the demand of digital power network

    它具有體積小、重量輕；無鐵芯、不存在磁飽和與鐵磁諧振問題；動態響應范圍大，頻率響應寬；抗電磁干擾性能強；無油化結構、絕緣可靠、價格低等優點；是未來電流互感器發展的方向，是新一代電力數字網發展的需要，適應電力計量和保護數字化、微機化和自動化發展的潮流。
  3. Aerodynamic undamping phenomena of structure oscillating in inviscid flow

    無黏流場中結構振動的氣動非阻尼現象
  4. Adopting two - dimensional incompressible, inviscid fluid model, some problems of flow - induced vibration are investigated

    摘要採用二維不可壓縮無粘流體模型，探討了板狀結構的流致振動問題。
  5. Keeping the self - adjusting of damping behavior when the controllability of semi - active damping is disable, or saving the unnecessary energy when the continuous modulation of damping is not needed, the composite structure for self - shifting between passive and semi - active structure is presented

    摘要當磁流變減振器半主動功能失效時，為保持其阻尼性能仍具一定的自調節性或實際路況不需無級調節時，節省不必要的能耗，提出用於車輛半主動懸掛系統的被動與半主動功能自動切換的復合結構磁流變減振器。
  6. In this paper, high - order accurate weighted essentially non - oscillatory ( weno ) schemes are investigated and their applications in hyperbolic conservation laws are discussed. based on this, a new weno difference scheme which based on dispersion - relation - preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics ( caa ) problems has been implemented and compared in order to test capability of wave capturing ; in addition, weno schemes generally do not converge at high order in the presence of contact discontinuity of euler equations, so a conservative front tracking technique coupling weno schemes and level set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy

    本文研究了高階精度加權基本無振蕩（ weno ）格式及其在雙曲守恆律方程中的應用，在此基礎上作了兩個方面的工作：一是針對高頻聲波問題構造出一種基於保色散關系（ drp ）的weno有限差分格式，並對計算氣動聲學（ caa ）問題的代表性算例進行了大量數值實驗，比較了該格式捕捉波數的能力；另外，針對高階weno格式在處理euler方程的接觸間斷時精度有所降低的問題，研究了利用界面追蹤技術levelset方法和高階激波捕捉weno格式相結合的一種守恆追蹤方法，並且給出有代表性的密度滑移面問題的算例，得到一致高階精度的數值模擬結果。
  7. Series of screen - bohou adopt large amplitudes, big intensity of vibrations, flexible screen surfaces, the motion parameters characteristics of adjustable amplitudes ; the unique structural features of " board of screen active, box inactive, unattached vibration of the screen surface " ; though segmented, multi - segments of screen surface jointed, large - scale of screen equipments can be realized, the advantages of large area, big handling capacity and no special requirements to the water of materials make the screen to be the best screen equipments used for the small wet materials

    簡介：博后篩系列採用大振幅、大振動強度、彈性篩面、振幅可調的運動參數特點；及獨特的「篩板振動、篩箱不振動、各段篩面獨立振動」的結構特點；經分段、多段篩面組合，實現了篩分設備大型化，大面積、大處理能力的優勢及對物料水分的無特殊要求，是潮濕細粒難篩物料的最佳篩分設備。
  8. There is no effective method to forecast and estimate the hydraulic vibration of hydraulic turbine up to now in the world, much less research in - depth for powerhouse structure resonance excitated by hydraulic disturbance of hydrogenerator set

    目前國內外尚無完善的水輪機水力振動預估方法，而對機組水力振動引起的廠房結構共振更是未深入研究。
  9. D. j. mead. free wave propagation in periodically supported infinite beams. journal of sound and vibration 11, 1970 : 181 - 197

    陳正翔，江松青，張維衡.無限長輸液管中結構振動波的傳播.華中理工大學學報， 1997 （ 11 ）
  10. M. a. heckl. investigation on the vibration of grillages and other simple beam structure. journal of the acoustical societ of america 36, 1964 : 1335 - 1343

    陳正翔，江松青，張維衡.無限長輸液管中結構振動波的傳播.華中理工大學學報， 1997 （ 11 ）
  11. So the sliding mode variable structure controller was discussed, which has strong robustness against the disturbance, and the chattering phenomenon inherited from vsc was taken advantage to regular valve vibration for the purpose of avoiding coagulation on it, while precision of level control can be almost unaffected. but for the reason of control limitation, especially the acceleration insufficiency, the continuous time quasi - sliding mode vsc for one class of controllable system, as the substitution of ideal sliding mode control system, which was impossible to implemented, was researched, including the three essentials, reaching condition in particular, and the chattering ex - pression was given. furthermore, the effect to quasi - sliding mode motion and chatter - ing expression by extent disturbance was also analyzed

    由於控制量相對受限制，並且主要體現在控制量加速不足方面，無法實現理想的滑模變結構控制，因此本文研究了一類能控系統在這種情況下的連續系統準滑模變結構控制，包括變結構控制三要素，尤其是到達條件；並且針對塞棒掛渣問題，給出了該情況下抖振的表達式；魯棒性方面，分析了外界擾動對準滑模運動的影響，並且給出了外擾作用下抖振的表達式。
  12. Self - densifying high performance concrete is well - performing concrete with the good performance of fluidity, anti - segregation and filling - up - space. with its own gravity and without any vibration, it can automatically fill up the space in and between fixed shutters and form self - densified concrete structure of ideal dynamic property and durability, therefore, it can accelerate construction progress of a building, shorten the construction period, secure concrete quality and improve the building ' s durability. in the mean time, it is conducive as well for environment protection and effects remarkable social and economic efficiency

    自密實混凝土屬于高性能混凝土，它具有高流動性、高抗離析性、高填充性的性能，在自重作用下無需振搗，自行填充模板空間，形成自密實的混凝土結構，有良好的力學性能和耐久性能，可以加快工程建設進度、縮短工期、有效控制混凝土的質量、提高建築物及構築物的耐久性，並有利於環境保護，具有較高的社會和經濟效益。
  13. The dissertation refers to comparatively full literatures in the field of vsc, and the development history and characteristics of vsc are summarized, and the elementary concepts, elementary definitions, elementary properties, elementary principles and design methods are particularly introduced, and the causes of the chattering phenomenon are systematically analysed, and the study status of the chattering phenomenon and the main methods to eliminate the chattering are elaborated. for the deficiencies of traditionary methods, three improved methods are developed, which are improved exponent reaching law solution, variable boundary layer solution and the solution by adding an auxiliary continuous control term. for uncertain linear systems, an adaptive fuzzy integral variable structure control stategy ( afivsc ) is put forward to eliminate the chattering around the sliding plane, which introduces fuzzy logic to soften the non - linear discontinuous sig nal in the control variable and utilizes adaptive theory to adjust output membership function according to how much the uncertainty of the system is

    比較全面地查閱了關于變結構控制理論的文獻，總結了滑模變結構控制的發展歷史和特點，詳細介紹了變結構控制的基本概念、基本定義、基本性質、基本原理以及設計方法；系統分析了變結構控制系統抖振產生的機理，並闡述了國內外目前對抖振問題的研究現狀以及消除抖振的主要方法；針對傳統抑制和消除抖振方法的不足，改進了傳統方法，得到了三種新的消除抖振的方法? ?即改進的指數趨近律法、可變邊界層法和附加連續項法；針對不確定性線性系統，在變結構控制策略中引入模糊邏輯和自適應理論來消除滑動平面上的抖振，提出了一種自適應模糊積分變結構控制方案（ afivsc ） ，利用模糊邏輯來柔化控制量中非線性不連續部分，採用自適應理論，根據系統不確定性大小在線調整模糊輸出量的隸屬函數，另外，鑒于模糊控制本質上是有靜差的，所以本文選擇了帶積分項的切換函數，由於積分項的存在使系統較正為無靜差系統。
  14. By means of trigonometrical progression method and the mainline track spectrum, the sample function of the chinese mainline railway track random geometric irregularity is simulated. with the data obtained from track geometry inspection car on qinhuangdao - shenyang special line for passenger transport and arma time series model, the sample function of high - speed railway track random geometric irregularity are simulated. based on existing literature, the artificial bogie crawl waves at various different speeds are randomly simulated

    根據我國干線鐵路軌道譜，採用三角級數法模擬出干線鐵路和準高速鐵路軌道不平順的樣本函數；根據秦沈客運專線高速試驗段軌檢車資料，採用arma時間序列模型模擬了高速鐵路軌道不平順隨機樣本函數；在既有研究資料的基礎上模擬出各種速度客車構架人工蛇行波；用隨機變量描述道床橫向剛度，並進行了隨機模擬；將振動理論和穩定理論結合建立系統的分析模型和運動方程；根據monte ? carlo法編制了車輛?軌道耦合系統隨機振動分析程序，進行了無縫線路隨機動力響應分析，通過試驗對計算模型、計算方法進行了驗證。
  15. In order to set up the dynamic model of swimming micro robot, this dissertation builds up the statics model and analyses the micro motion amplifying performance of micro robot mechanism, builds up the vibration model of micro robot and analyses the vibrating performance without and with damp, researches the propelling force of driven wing and the resistance of micro robot in liquid based on the theory of flat board resisting stream, builds up the dynamic model of swimming micro robot for the first time in nation and analyses its swimming performance which is influenced by driving signal frequency, amplifying performance of main machanism, area of driven wing, character of fluid and so on. this dissertation manufactures the micro robot and sets up the experimental environment and tests the amplifying effect and the vibrating performance

    本文建立了主體機構靜力學模型，研究了主體機構的結構參數對微位移放大性能的影響；建立了主體機構振動模型，研究了主體機構在無液體阻尼和有液體阻尼情況下的振動特性；根據流體力學平板繞流理論，研究了驅動翼產生的推進力和微機器人在流體中受到的阻力；在此基礎上國內首次建立了泳動微機器人的動力學模型，並對模型進行了深入的研究，詳細闡明了驅動信號頻率、主體機構放大性能、主體機構振動特性、驅動翼面積、液體性質等因素對微機器人泳動特性的影響。
  16. The biggest displacement of the instantaneous response is much bigger than that of the static one

    初始靜力荷載效應使瞬時動力響應的振幅比無初始靜力荷載效應的結構的水平和豎向位移振幅小。
  17. The dynamic characteristic of large - scale aqueduct is analyzed under four cases ( aqueduct without water, aqueduct with water in three troughs, aqueduct with water in the middle trough, aqueduct with water in side troughs ), and the results can be applied to seismic - resistance design of large - sc ale aqueduct. the earthquake time history response of large - scale aqueduct is studied under four cases when the el - centro earthquake wave is inputted. in the paper, base isolation technology is applied to avoid the destroy arising from the bigger stress in aqueduct

    本文分4種工況（槽內無水、中槽過水、邊槽過水和三槽都過水）對該大型渡槽結構的動態特性進行分析，所得結果可為大型渡槽結構抗震設計提供依據；並在el - centro地震波激振下進行渡槽結構在這四種工況下的地震動力時程分析，計算給出了大型渡槽結構的地震反應規律；為了避免較大應力的出現對渡槽結構造成破壞，本文採取隔震措施來減小該結構的動力反應，並分析其隔震效果，提供設計參數，為工程設計提供依據。
  18. D 、 the seismic response of jointless bridge were examined by spectrum analysis as well as transient dynamic analysis. e 、 the modes of a whole concrete model of jointless bridge by modes test, at the same time, the accuracy of finite element modeling and analysis was proved by it

    5 、對無伸縮縫橋按比例縮放的全橋模型進行實驗，測出結構的動力特性（固有頻率、振型、周期等） ，驗證有限元建模和分析的精確度
  19. The early studies are mostly focused on the method of gluing piezoceramics on structural surfaces, which has some disadvantages such as difficulties to protect the ceramics and the connection wires, bad coupling with only one surface glued on the base materials, low signal - to - noise ratio etc. these problems can be solved using the embedded piezoceramics, and furthermore, the piezoceramics can be placed in the optimal positions, especially in the optimal deepness for the piezo - actuators, according to an optimization algorithm befor e they are embedded, so the actuator effects and sensor signals are thereby enhanced

    早期的研究主要集中在表面粘貼壓電片的結構，表面粘貼壓電片具有一些無法克服的缺點。本文著重進行利用埋入復合材料結構的壓電傳感器和壓電驅動器對其振動進行主動控制的相關理論和實驗研究，並介紹其相應結果。埋入型壓電材料的優點主要是能保護壓電傳感器和作動器及其連線、增強壓電材料和基體材料的耦合、優化埋入壓電陶瓷的深度和厚度可增強壓電傳感器的測量信號並提高信噪比等。
  20. Wireless sensing experiments for structural vibration monitoring of offshore platform

    海洋平臺結構振動監測的無線傳感實驗研究
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