無阻尼振動 的英文怎麼說
中文拼音 [wúzǔnízhèndòng]
無阻尼振動
英文
non-damping vibration- 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...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 尼 : 名詞(尼姑) buddhist nun
- 振 : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
- 無阻 : undamped; unobstructed; unimpeded
- 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
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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Undamped natural mode of vibration
無阻尼固有振動模態Calibration of vibration and shock pick - ups - method of test for resonance frequency of undamped accelerometers on a steel block
振動和沖擊傳感器的校準.鋼鑄錠無阻尼加速度計共振頻率的試驗方法Methods for calibration of vibration and shock pick - ups. resonance frequency testing of undamped accelerometers on a steel block
振動與沖擊傳感器的校準方法安裝在鋼塊上的無阻尼加速度計共振頻率測試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。We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase
研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律,並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時,原子對探測場和驅動場色散的響應不再為零,雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益(吸收)的時間演化規律明顯改變;隨著失諧的增大,探測場增益(吸收) 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長,振幅和穩定值變大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。A damped harmonic oscillator without a driving force was studied using canonical tramsformation ; an exact wavefunction and energy level for the damped harmonic oscillator has been obtained
摘要對于無外界驅動力且阻力與速度成正比的阻尼諧振子,通過正則變換,得出了阻尼諧振子的嚴格波函數及其相應能級。The influence of the blowing factors to the flutter and the lift coefficient is analyzed. secondly, the self - induced vibration of seals are analyzed by fluid - structure coupling numerical method. the self - induced oscillation of the seals will occur at large rotational speed, however, this phenomenon ca n ' t be simulated with the
採用本文的流固耦合方法成功地捕捉到頻率鎖定的現象,且發現隨著轉速的提高,固有頻率也增大,從而證明高轉速下密封轉子會發生自激振動,傳統的剛度阻尼方法對此是無法解釋的。Express the differences of displacement variation of a mass subjected by a free damped vibration and a forced vibration, separately
分別敘述一質量受到無阻尼的振動與強制振動時位移變化的不同。Accordingly, the problem of dynamical, such as seismic response, wind induced vibration, coupled dynamical vibration between bridge and vehicle should not be ignored. especially, stay cable, which is one of the main components in cable - stayed cfst arch bridge, is susceptible to environment and traffic excitations because of its flexible, low damping small weight, then the significant vibration is induced. the accurate analysis of the dynamic characteristics of cable - stayed cfst arch bridge is very important for the design of this type bridge
大跨斜拉鋼管混凝土拱橋作為一種新型的組合結構橋梁,由於結合了斜拉橋和拱橋的優點,已經運用到實際工程中,但其理論研究才剛剛起步,大跨斜拉拱橋與大跨拱橋、斜拉橋一樣,是一種柔性結構,應該重視其動力問題,地震、風振、車振等動力問題是該類橋梁所無法迴避的,尤其是斜拉拱橋的主要承力構件之一的斜拉索,由於其大柔度、小質量和小阻尼等特點,極易發生振動,準確分析斜拉拱橋及斜拉索的動力特性是斜拉拱橋設計的重要工作之一。Detailed numerical studies are presented for the transitional dynamics of the steady - state motions of those systems with the variation of the excitation and the system parameters, with the illustrations given for rich nonlinear phenomena, such as the bifurcations of periodic vibro - impact motions and the chaotic vibro - impact motions. in chapter 5, the existence of the periodic vibro - impacts, as well as the corresponding stability is analyzed for an oblique - impact vibrating system composed of a spring - pendulum and an oscillator. when the system damping and the tangential friction
結果表明,在無阻尼、無摩擦的簡化情況下,周期斜碰撞振動運動具有嚴格的存在條件,並隨激勵參數的變化出現復雜的分叉和穩定性的反復切換;運動阻尼可在較大參數范圍內對非穩定運斜碰撞振動系統動力學研究( 5 ) ( 6 )動鎮定;相對而言,切向摩擦對系統穩態特徵的影響不大。分享友人