space vibration 中文意思是什麼

space vibration 解釋
航天振動
  • space : n 1 空間;太空。2 空隙,空地;場地;(火車輪船飛機中的)座位;餘地;篇幅。3 空白;間隔;距離。4 ...
  • vibration : n. 1. 振動,顫動;擺動;【物理學】振動。2. (心的)震顫。3. (思想情緒的)激動。4. 猶豫。adj. -al
  1. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。
  2. Fuzzy logic vibration control of space intelligent truss

    空間智能桁架模糊振動控制研究
  3. The development of single chips and analyzers at home and that of overseas compared, a kind of pocketable dual - channel and multi - function signal analyzer, based on dsp, are researched with the functions of dynamic analyzer, data logging acquisitor, start - up / coast - down analyzer and dynamic balancer, etc. and the functions data acquisition, storage, display and analysis of vibration signal are validated in practice, high - speed float point data calculation ability, large memory space and simple operation are the characteristics

    高性能單片機尤其是dsp功能晶元的採用及用戶技術要求的不斷提高,使得信號分析儀的功能越來越完善,在比較了國內外單片機和信號分析儀的發展現狀后,開發研製了一種基於浮點dsp晶元tms320c32的便攜式雙通道多功能信號分析儀,兼有動態信號分析儀、巡檢數采器、起停車分析儀、動平衡儀等多種儀器的功能。
  4. 2. a method combining some of the composite space structural simulation, wavelet analysis, fuzzy mathematical, genetic algorithm, artificial intelligence, expert system, vibration diagnosis, acoustic sounding, supersonic flaw detection, radioscopy, infra - red detection and so on to diagnose the composite structure damage is discussed

    本文對把復合材料大跨建築結構模擬、小波技術、模糊數學、遺傳演算法、人工智慧、專家知識、振動診斷、聲發射技術、超聲波檢測、射線探傷、激光全息檢測、紅外線檢測等方法中的幾種融合在一起對復合材料大跨建築結構進行損傷診斷的方法進行了探討。
  5. While two ( or more ) electromagnetic waves of the same frequency, same direction of vibration, same phase or constant phase difference superpose in space, the amplitude of composite wave is vector sum of the amplitude of each wave

    由兩個(或兩個以上)頻率、振動方向相同、相位相同或相位差恆定的電磁波在空間疊加時,合成波振幅為各個波的振幅的矢量和。
  6. As the percentage of flexible space structures and the requirement for control accuracy continuousely increase, the control of flexible space structures is increasingly important. focusing on the problem of vibration control of clamped beam, the thesis studied the application of wave absorbing theory to the vibration control

    隨著空間結構中的撓性結構的比重的不斷增加和軌道、姿態控制精度要求的不斷提高,使撓性結構振動控制日益重要,本文針對懸臂梁的彎曲振動控制問題,研究了波吸收器在振動控制中的應用。
  7. This paper is concentrated on the space geometric non - linear static analysis and vibration analysis of the long span plate - truss composite cable - stayed bridges. 1

    本文是針對大跨徑板桁結合斜拉橋的空間幾何非線性靜力分析及結構的動力分析兩個方面而展開研究工作的。
  8. As an example, the space analysis model about the wuhu changjiang river bridge is done and the internal forces about the wuhu changjiang river bridge due to dead load and lived load are analyzed. 2. the vibration analysis of the long span plate - truss composite cable - stayed bridges

    文中以蕪湖長江大橋為例,建立了該橋的空間有限元分析模型,並重點分析了該橋在自重恆載作用下的結構內力及車輛荷載對橋梁結構內力的影響。
  9. Secondly, for the elastic deflection and vibration of a free - floating flexible dual - arm space robot, an approach for lq optimum vibration suppression is developed, and some simulation results conducted to verify the effectiveness of the proposed methods

    接著,針對空間柔性機械臂的彈性形變和振動問題,本文設計了lq最優控制器對其進行振動主動控制,並通過大量的模擬結果證明了方法的有效性。
  10. An integral transform solution of rectangular foundation loaded steady vibration on an elastic half space

    彈性半空間上矩形基礎穩態振動積分變換解
  11. Integral equations of vertical vibration ofan elastic circular plate on a fluid - saturated poroelastic half space

    多孔飽和半空間上彈性圓板垂直振動的積分方程
  12. Elastic half - space theory of foundation vibration

    動力機器基礎基礎振動半空間理論
  13. It is high performance concrete of low water - binder ratio. with its own gravity and without any vibration, it can fill up the space automatically. with high adding quantity of fly ash and slag, high quality water reducing agent and other compound admixture is the most important technology of this kind of high performance concrete. scc focus on high workability at the same time on high strength and high durability through choosing the composite of aggregate, additives, content of cementions material, admixture reasonably and the optimum design of mix proportion

    本文研究了採用吉林省本地原材料和常規生產工藝配製c40自密實混凝土的製作技術,採用水膠比、粉煤灰摻量、砂率、膠凝材料總量四個因素進行配合比的正交設計,試驗分析了自密實混凝土拌合物的工作性以及硬化后的力學性能、耐久性和生產與施工注意事項,並對其經濟性做出了客觀評價,本次試驗為吉林地區自密實混凝土的推廣應用提供了數據基礎。
  14. ( 3 ) the theory of morden optimal control is used for the controller design of the active vibration isolation system. two algorithms, instantaneous optimal control and linear quadratic gauss optimal control, have been discussed and compared. an instantaneous optimal closed - loop control algorithm in structural space is derived by using the newmark scheme

    ( 3 )應用最優控制理論設計控制器,對瞬時最優控制和線性二次型gauss ( lqg )閉環控制方法進行研究和對比,並導出構形空間內的瞬時最優閉環控制演算法。
  15. Analysis on space vibration of ballasted track

    有碴軌道結構空間振動分析
  16. The dynamic control of space - station - robot with minimizing vibration

    欠驅動冗餘度機械臂的動態自重構
  17. Sting ray represents the first generation of programmable torpedoes and attention has been turned to the problems of how to harness the vast computer powers now available with their associated software programs, how to package the maximum computer power in the smallest possible space, and how to improve still further the processing and filtering techniques so vital to exclude extraneous noise and vibration

    譯文:在艦長相信(船的)倒車動力能夠保證他及時停船,從而高速沖進泊位靠岸,以炫耀其漂亮的操船技巧的時候如果發生這類事故,其結果就可能是艦首被撞得粉碎,或者出現比這更糟糕的事故,而事故發生的原因不是出於執行某重要任務的需要,而僅僅是出於某種蠻干心理。
  18. Stochastic space vibration analysis of train - curved bridge time - varying system

    橋梁時變系統空間振動隨機分析
  19. 2 kneading massage heads on neck and each 6 pcs on the back & waist controlled individual w / t 2 kneading speeds ; 2 ) 4 vibrators on seat with 4 vibration modes ; 3 ) 2 electronic hammer on calves with 4 tapping modes ; 4 ) back & calves inclined angle adjustable, the adjust lever at the same way to easy use and save space ; 6 ) simple armrest

    頸部2個,背部、腰部各6個揉捏按摩頭, 2種速度單獨控制; 2 )座墊4個振動馬達, 3種振動模式; 3 )腿部2個電捶, 4種捶打模式; 4 )背部、小腿角度傾斜可調,調節桿在同一方向使用方便,節約空間; 5 )簡易扶手。
  20. Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco - elastic dampers in cable - stayed bridges is investigated by joining the center difference method and the state space strategy. both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. the space nonlinear vibration equations of the cable - damper system are derived, and a new hybrid method for solving the cable - damper system is presented by combing the newmark method and pseudo - force technology

    綜合考慮了拉索抗彎剛度、垂度的影響,研究了粘彈性阻尼器對斜拉橋拉索的空間振動控制,聯合中心差分方法及狀態空間法,得出了拉索麵內、外振動各階模態可能達到的最大阻尼比及相應的最優阻尼器系數,並對斜拉橋拉索的阻尼器設計提出了參考建議:考慮拉索抗彎剛度、垂度及幾何非線性,導出了索-阻尼器系統的空間振動非線性方程組,結合newmark方法及偽力( pseudo - force )方法,創新地提出了求解非線性方程組的雜交方法,根據拉索-阻尼器系統的阻尼特性,在各種荷載作用下,對索-阻尼器系統的非線性瞬態振動響應進行了研究,從系統響應的角度更加直接地驗證了阻尼器的控制效果。
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